Bmw airhead starter relay The starter relay dis-engages the starter circuit when the motor is turning. Capital Cycle (14215) 99. Sep 1, 2010 · The next place I'd look would be under the tank where the battery power goes into the starter relay -- take a look into the relay connector to determine whether the terminals are corroded and/or the heavier red wires appear to be damaged; again, jostle the wires a bit with the ignition on to see whether the power is interrupted. com FREE DELIVERY possible on eligible purchases Nov 4, 2023 · That something could be the starter relay under the tank. The red wires at the starter relay are ALL Share your experiences from past trips on airhead bikes, ask questions about areas new to you, or get help planning your next weekend ride or long vacation. 95. The starter relay is often repairable, often by simple cleaning or burnishing of the contacts inside it. Replaces original old electromechanical, SR9572 while still retaining the re-start lock-out feature while the engine is running to prevent starter drive gear damage. 1971 BMW Airhead rocker arm issues. com/electric-starter-troubleshooting) but my bike isn't wired like that. Aug 24, 2020 · Due to the elimination of the starter lock out safety feature, this product is no longer offered. On early models, the starter relay and the horn relay may look identical, but mixing them up will cause a multitude of problems. Starting Issues - Starter Relay - BMW R100 R100s 1977 Airhead - Wont Start, Turns over once or twice then coughs I'm having starting issues on my 1977 BMW R100s 1977 Airhead. Starter did not spin so I began considering the relay as the issue. Unfortunately, the only pics I have of the wiring for my starter relay are blurry and un-usable. Check out the deal on Starter Relay /6 at boxer2valve. You can unplug the small wire at the starter motor, affix a 12V mechanic's test lamp and when you push the starter button, the light should light up. I suggest testing them in a different order. Be warned that the /6 does not have the same starter protection as the /5. The airheads definately have them on the starter as well as having a starter relay. Checked the fusebox at the starter relay input, getting 12v from there, so there's a good connection to the ignition switch. I don't know if that's what's going on, but you stated in your initial post: 3 days ago · THE ultimate upgrade for your BMW Airhead's charging system is this 450w alternator kit. These days you can let Amazon do your heavy lifting and find a suitable relay regardless of model for under $10 that is completely plug compatible with the HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. Apr 15, 2015 · 2) Removed black wire from starter relay and jumped it to + at battery. Starter Relay There are no numbers on the starter relay It is part number 61 31 1 357 104 The diagram shows this relay from side view so wire colors aren't so helpful The spades on the bottom of the relay look like this: (I put letters next to spades, nothing written on sides or bottom of relay) 2. Some forum content will be hidden from you if you remain logged out. There is an internal jumper wire inside the Starter Relay that bridges the two terminal (30) male spades. Star Nut Wrench All 2V Twins from 1970 $ 69. The relay can develop corrosion on the terminals. BMW # 61 31 1 357104 SR9572. Updated Design with fewer Components; One Kit fits ALL Airheads - no need to know the stator size; Plug and Play Harness simplifies Installation; Detailed Installation Guide-Easy Installation; Brushless; Proven International application over many years. Likewise, red wire from battery/harness at the starter relay (provides power to the relay). The starter has been a trouble spot for a while and doesn't turn over properly. Early models were grounded to regular ground, so the starter relay didn't affect the headlight. 73. Starter switch, 3. The starter may not turn, yet the battery voltage measures OK. Mar 30, 2025 · Make/Model: BMW R60, R75, R90/6, R90S. The starter operates so it can’t be the starter or the solenoid. I've heard people have actually opened up the relay to clean the contacts. Kent is valid when advising about the battery condition. If yes, then check to see if you hear the "click" of the relay and are getting voltage OUT of the starter relay. Thread starter barron_williams; Start date Jan 8, 2012; B. Your Global Source for BMW Motorcycle Parts ! Jul 9, 2018 · Checked the power at the ignition switch at the start position, getting 12v on yellow/black (that's the lead to the starter relay). The photo and diagram show how it was wired when it came apart. USD Price $20. So you nailed 'em just right. Please verify the SR9570 markings on your relay. Apr 21, 2018 · BMW uses the two Starter Relay (30) terminals as a common connector to distribute the current flow from the battery (+) terminal to all the other circuits on the bike. Some have substituted a 0-332-014-118 relay (03-32-014-118); some HAVE Mar 30, 2023 · 2. The problem is, I cannot find one that is identified as compatible with my year of Airhead: 1989 R100GS. It has been the cause for some problems that SEEM to act like a poor battery. Horn relay, BMW number 61 31 1 354 393, Bosch 1 332 014 406. The connections are basically the same on both OEM relays. [/SIZE] Starter - BMW Airhead 9-Tooth 1977-onwards, Replaces VALEO D6RA7, D6RA15; 12 41 9 062 425 / EnDuraLast Relay - Starter BMW Airhead; 61 31 1 243 207 / BOSCH & Tyco From 1976, most Airheads have a major connection of the battery to the electrical system (EXCEPT the large wire to the starter solenoid relay, mounted ON the starter motor) located at the starter relay under the fuel tank. testing a Starter Relay - 1976 BMW R75/6 testing a Starter Relay - 1976 BMW R75/6. Testing the battery would always be my first option. I now know from what you have told me (Charlie) and checking the old girl that the buzzing relay is the headlight/starter relay and the actual starter motor relay is under the tank. A lot of Dec 7, 2020 · The starter relay connection point I am talking about is the the output of that starter relay. Well, they show the relay, but no number or price associated with it. Starter relay. When the starter relay is triggered, the headlight relay loses its ground and shuts down. Just like the original, this relay incorporates a metal clip so that it can be attached to the bracket inside the headlight bucket. 3 ampere diodes have considerably more reliability in this usage, than 1, 2, or even 2-1/2 amp In this video I show how to remove a starter from a BMW airhead. May 22, 2011 · Trace teh green/yellow from the starter button to the starter relay, might check for continuity. Starter relay, BMW number 61 31 1 243 207, Bosch 0 332 014 118. The starter will activate if you bump the button with the engine running. Aug 5, 2012 · Charge up the battery, then pull the blue wire from the bottom of the starter relay. I'm anxious to install it but need advice on pinouts. Horn relay, BMW number 61 31 1 354 BOSCH / Tyco Original Equipment SPST (Single Pole, Single Throw) Relay Vehicle Manufacturer: BMW Application: BMW Airhead Models Make/Model: BMW R60, R75, R80, R100 Model Years: BMW 1976 - 1984 Manufacturer #: BMW #: 61 31 1 243 207 BOSCH # 0 332 014 118, 0 332 019 151 Power Rating: 30 Amp, 12 volt Endurance Rating : 250,000 Cycles @ 30 Amps Aug 19, 2023 · BMW airhead boxer motorcycle starting problems, starter motor Starter relay, BMW number 61 31 1 243 207, Bosch 0 332 014 118. Jul 18, 2022 · The starter motor and solenoid are under the top engine cover. com) headlight rear light alternator coils contact breaker starter motor starter relay spark plugs capacitor battery rectifier instrument panel turn signal unit high beam low beam connector tail light stop light rear left turn signal rear right turn signal front Jan 22, 2020 · This article was originally written (and since then, expanded/edited numerous times) because someone asked about the left-hand switch of BMW Airhead motorcycles if using higher powered headlight bulbs. In part two I will show the rebuild process. Some have substituted a 0-332-014-118 relay (03-32-014-118); some have used a DF005 'Blazer' relay from AutoZone stores (which has two 87 terminals and no 87a terminal). There is an analog logic circuit in the starter relay. The critically important higher amperage output of this system at low engine RPM's allows use of lighting, heating and other accessories to be used without discharging the battery or overloading the original charging system. I attach the starter relay to the left side of the main frame tube and the voltage regulator to the right side using the Allen head bolts into the tapped holes in the brackets. Brake fluid won't help that either. Apr 30, 2014 · Find the relay and unplug/replug it a few times. I am still in troubleshooting phase and have done my usual web research (I am new at Airheads maintenance). Airheads . 4) Replaced starter relay with another modified relay. See SI 61 002 77 (1035R) of BMW Munich, Sept. Feb 27, 2009 · The starter relay, under the tank, is a main culprit for electrical issues. He did not understand why the existing stock headlight relay would not automatically eliminate wear on the switchgear. 1977. Also Snowbum has a discussion about soldering the input and output red wires together to ensure that the power gets through the relay. Just finished complete overhaul of carbs; pair was mismatched (64/32/12 and /13) according to the Bing Agency, stating that /13 and /14 were the stock carbs for this model. They sell a recon Valeo starter motor for £120 and the new up graded Nippon Denso for £260. BUY NOW $16. numbers for the R100 starter relay ? I would like to find a cheap one at Auto Zone etc. Feb 27, 2009 · Well, I had a friend help me with testing the old starter relay, checked out ok. Schematic diagrams for R90S, R60S, R75/6, R90/6. And finally look at the starter unit. Apr 10, 2013 · From Rick's site: [SIZE=+1]Motorrad Elektrik is always working to raise the bar and make old Boxers better. Regular price $114. I marked the relay terminals with the numbers shown on the wiring diagram and made up a legend with color codes, a sketch of the relay and a table of terminal numbers and wire colors. BMW # 61 31 1 357104. Nov 30, 2015 · The starter disable relay is under the dash. Clicking on them every time you visit, helps support this website! Clicking on something inside an advertisement helps even more! BMW Airhead Motorcycles. The starter relay and sometimes the starter solenoid relay may make loud clattering noises, which is called 'the cricket problem'. Starter spun. If the starter engages, you have an open rotor in the alternator. Apr 4, 2018 · On my '73 R75/5, the starter relay is the "gatekeeper" for lighting and ignition voltage. If that is broken, no start. Replacing the relay is better, but they are somewhat expensive (~$50). 3 days ago · Manufacturer #: 12 41 1 350775, 1 350775, SR9570. I think it is a relay from a later bike where the protection is in the printed circuit int the gauge cluster. For 1975 & into 1976 in various formats. In the Haynes manual it shows 5 connectors with 9 wires, in the Clymer manual it shows 5 connectors For applications 1977-1995 with 9-Tooth Drive Gear Pinion / 111-Tooth Ring Gear, refer to Part # BMW-VAL1 (Valeo) or BMW-STR1 (EnDuraLast) INSTALLATION INSTRUCTIONS FOR THE ENDURALAST STARTER - BMW R Model 247 / Airhead. They are NOT interchangeable. The starter relay, starter motor and solenoid are part of the starter circuit which is described in the [Starter Circuit] section of the [/6 Series, 1975-76 Circuits] document. 4. This information assumes that you still have the original wiring and that nobody has altered it. Now I'm stuck. Sep 15, 2015 · Its in nuetral (lights on etc)tried clutch in, clutch out. The ABC is a go-to place for support, with it’s own mailing list. EDL4Li Alternator: Updates the BMW Airhead original, under-performing 20 amp (max) alternator and diode board with modern components. Oct 20, 2024 · I'm having intermittent starter engagement issues (weirdly, more so when the bike has been running for a while) and so I thought I'd start by changing out the starter relay. Feb 6, 2019 · The other parts that go on the frame are the starter relay, voltage regulator, horn and ignition coils. thanks Apr 19, 2024 · Starter Relay BMW Airhead 61 31 1 357 104 / SR9572 / Genuine. 1. Here in this video you see my 1974 R90/6. Low inventory - Hurry up! − The headlight relay is wired on later models as a load shed relay, with the coil grounded by the starter relay. Check red wire from diode board to starter solenoid. Did a google search and found AS Cycles who show a listing for it, but they're the only ones I could find. Sep 10, 2014 · I am in the middle of restoring my R90/6 and took LOTS of pictures before teardown. The starter relay terminals connect with one branch from the main harness and also to a branch from the top of the front engine cover. Dec 17, 2015 · Thanks all, the only wire placement I needed was the blue one pictured in Günther's 2nd pic, his is on the horizontal spade too. Nov 27, 2017 · Greetings MOA mates, I currently have a starter issue on my R75/5: When I click the starter switch, the starter will start cranking but will not stop until I pull the battery. I have recently experienced a dead starter button on a previously good running airhead. 09. Application: BMW Airhead. Because it's a bit difficult to see in the photo to which harness May 21, 2015 · Thanks everybody for the info and suggestions. Check out the deal on Starter Relay /7 at boxer2valve. removed starter cover to expose it. Most of the starter problems are related to defective batteries and/or connections at the battery. com) headlight rear light alternator coils contact breaker starter motor starter relay spark plugs capacitor battery rectifier instrument panel turn signal unit high beam low beam connector tail light stop light rear left turn signal rear right turn signal front Reproduction of the original BMW starter relay part #12411350775 12 41 1 350 775 1970 and later Airheads $ 43. Commonly referred to as the "cricket " relay. DO NOT wrongly install these relays. (I am assuming a generic (sort of) connection here as particular wiring situations may exist - check your particular wiring diagram. Vehicle Manufacturer: BMW. I pulled the starter switch enough to clean it and we also tested continuity on the brown wire, from the headlight bucket to the relay. Jul 3, 2015 · The diode on all Airhead models that use it, must, in some conditions, pass the starter relay coil current; and absorb any high-voltage ‘kickback’ from that starter relay coil. 99 . 6-pole 28 29 Neutral indicator switch Plug, 2-pole 30 31 Brake fluid level switch 32 Oil pressure switd-l 33 Rear right turn indicator Apr 15, 2018 · Welcome, Guest! We hope you enjoy the excellent technical knowledge, event information and discussions that the BMW MOA forum provides. After some troubleshooting and wire tracing I think I've narrowed the culprit to the starter button itself and possibly the relay. Anyway, a good starter/alternator shop can fix you right up. When you press the starter button, that +12 goes, via a black wire, to the small terminal on the Starter Solenoid. Turn Signal Relay, 1974-1980. Quality aftermarket BMW Starter Relay. Of that were acting up you'd have no click when you turn the key. I still havn't had a chance to go further with this relay problem but I will wade thru snowbums info and see how I go. There Relay - Starter BMW Airhead; 61 31 1 243 207 / BOSCH & Tyco Battery 12V/20AH - BMW Airhead, K Bike, Hexhead, Oilhead 61 21 2 346 800, 61 21 0 403 224 / WestCo AGM Universal Bolt Stainless Steel 8mm x 45mm - BMW Motorcycles; 07 11 9 901 033 / EnDuraLast Apr 30, 2012 · You need the pin layout from the factory manual. BMW Motorrad Tyco Original Equipment Relay for Starter, Horn and Various Switches Vehicle Manufacturer: BMW Application: BMW Airhead, Oilhead Models Make/Model: BMW R45, R65, R80, R100, R1150, R1200CL Model Years: 1978 - 2006 Manufacturer #'s: BMW: 61 36 1 391 397 superseded by 61 36 1 389 105; , Bosch: 1 244 019. If the starter fails to operate, the starter or solenoid is at fault”. Cleaning up that relay and adding some silicon dielectric grease will help. If the act of pressing the starter button dropped the system, I'd be looking at the starter relay or the wire connectors associated with it. See the next paragraph. BMW # 12 41 1 350775 SR9570. Of course, the relay still needs to operate in order for the starter to function. Top quality replacement flasher relay to fit 1974-1980 2-valve models. The starter relay is NOT the big solenoid relay mounted to the starter motor. Jul 5, 2010 · Yes, that totally makes sense. A couple of the numbers on the relay of the bike I am putting back together are unreadable and the new relay that I bought has a dark colored sealant on the bottom & the numbers are not visable. The /5 rellay used rising voltage from the alternator to lock out the starter, while the /6 used the clutch and neutral switches to disable the starter switch. I listed them in the likelihood of failure. 6 Series Starter Relay (1975-76) (Source: Haynes Manual) Starting from the left, we see terminal (30) with two RED wires connected each of which is 2. I cleaned all terminals on the relay. Sep 16, 2013 · It is the relay that connects this hot voltage to the starter to energize it. This circuit includes the battery, the starter button, the starter relay, and the starter motor and solenoid. Commonly referred to as the "cricket" relay. See Installation Tips HERE (Courtesy Brook Reams) Jun 25, 2021 · • The Starter Relay simply routes low current 12VDC to the starter motor. bmw - r60/6 - r75/6 - r90/6 - r90s - wiring diagram by gordon wright (gordon@wwt4. Discussions about Airhead Beemers Club sponsored Rendezvous, Barley Therapies, Tech Days, or other events should be placed in the Rendezvous & Events Topic area. The starter relay, starter motor and solenoid are part of the starter circuit which is described in the 5 Series Circuits document, Starter Motor section. HD Video Tutorials along with High quality replacement parts to keep your classic BMW Airhead on the road. 00 . The pins could be corroded. Replaces electromechanical, SR9570 while still retaining the re-start lock-out feature while the engine is running to prevent starter drive gear damage. Remove the old starter; If it is a Bosch starter you will NOT need the rear support bracket replaced for the EnDuraLast Jan 3, 2021 · BMW has announced a worldwide recall of BWM R1300GS models due to starter relay issue. If your relay has SR9572, you will need REL-104 or REL-104EDL which looks identical but has different connection terminals and function. 3) Removed Brown/Black wire (31B) from starter relay and grounded the 31B terminal. See Some later model Airheads use a starter relay with a diode inside. Relay - Starter BMW Airhead; 61 31 1 243 207 / BOSCH & Tyco Part # REL-207 BMW List Price $29. Please see either the BMW or EnDuraLast direct replacements. There is a starter relay in the main fuse box under the hood, I hear it looks like a relay but is just a jumper. Slash 5 Revive! Nov 3, 2012 · I have had to replace starter relays in all my airheads. Depending on what is bad with the under tank MC, it will cost between $80-$180. Checked the starter relay, it is clicking, I can hear it switching. Snowbum's BMW Motorcycle Repair & Information Website The ads above are Google-sponsored. Neutral Position Switch – BMW R Airhead {BMW# 61 31 1 243 097} 1: 61 31 1 355 262: GASKET RING – A 12,2 X 20-AL: 1: OPS-414: Oil Pressure Switch-BMW R Airhead {BMW# 61 31 1 243 414} 1: OPS-414CW: Oil Pressure Switch Crush Washer {BMW #61 31 1 243 414, 61 31 1 354 274, 12 61 1 277 642} 1: REL-588: MINI-RELAY (to 09/78) Horn Relay w/ resistor MAX BMW is your #1 Source for BMW Airhead Parts! Click below to order, or e-mail Francis Jordan at francis@maxbmw. barron Jan 7, 2017 · Buy Starter Relay - Compatible with BMW R Airhead ; 61 31 1 357 104 - SR9572 / Genuine BMW: Starter - Amazon. Jan 23, 2022 · Vintage BMW Motorcycle Owners is a non-profit association and is not affiliated with BMW AG or BMW of North America. Only difference is my bike has two blue wires soldered to the same female connection while his looks like it's just one and my diode board has cap head screws to hold it on, instead of using solid mounts and nuts (probably because my bike is earlier, microfiche Mar 24, 2015 · Starter relay here for $10 (about half way down the page). This is the wire from relay to starter. Jun 9, 2012 · Point 11 tests out okay, “then your problem is NOT in the starter area; but more likely the thin black wire or the starter relay; or push button. If your relay has SR9570, you will need REL-775 or REL-775EDL which looks identical but has different connection terminals and function. However, 1995 was well before internet search and shopping. Starter Relay Issues Revisited; Starter Troubleshooting; The /5 Centerstand Tang; Timing an R65; Timing Chain Measurements; Tom Keen’s Airhead Powered Snowblower; Valve Adjustment on 1959-1969 Twins; Wheel Bearing Extraction; Links to Other Resources Airheads Beemers Club. Jun 1, 2013 · A local Airhead specialist was able to correct starting and running issue, but the fuse on the turnsignal circuit blows, some times right away, other times 200 miles into a ride. The diagram only shows two wires going to Starter relay 15 Relay Ignition coils 16 17 Spark plugs with caps 18 Condenser 19 Contact breaker Starter 21 Battery Alternator 22 23 Voltage regulator Diode board 24 25 Plug, 1-pole 26 Plug, 2-pole 27 Buzzer Plug. Directions and components to replace the Original Electromechanical, SR9570 BMW Starter Relay. The large red wire from the battery + goes directly to the starter, the small red wire goes to the starter relay. Then I would test the relay. com Parts for Classic BMW Motorcycles My Cart: 0 item(s) For example, here is a starter relay for a /6 series airhead from the Haynes manual. 59000 on the odo and I have replaced the relay, but it's an intermittent problem. 00 Only 1 left. The starter relay Connector Block and relay mount on the left side of the frame beneath the gas tank. VERY worthwhile to check that out first. Feb 24, 2006 · I'm trying to understand and diagnose a dead start button on a 71 R75/5. 104 in stock! Apr 15, 2018 · Turned out be the starter relay, and with the kind guidance and patience of Anton Largadier, our local BMW wizard/guru in Charlottesville, I now have a new relay - not the official /5 one (too $$!) but a generic one. 7% positive; Seller's other items Seller's other items; Contact seller; US $142. Dec 5, 2009 · According to Hucky's BMW site, the light relay 61 31 1 358 193 is the one for /6 and /7 bikescosts $20. 3. 5 mm² cross-sectional area. No voltage at the small "spade" connection when I hit the starter button. Did not initially spin starter I removed the case Usually it is indicated by the click/thunk down at the starter when you turn the key to the start position. Agreed! Point 12. “Certain years and models of BMW Dec 8, 2014 · Thanks! Starter relay ordered from Moto Elekrik. Jan 22, 2019 · Folks, I have been developed a growing library of airhead electrical system documents. This is the perfect replacement for the failure-prone starters fitted to the 1988 through 95 two-valve Boxers, and will also fit all 77-87 twins that came with Bosch starters. The one for the bikes with daylight on lights is 62 31 1 243 049. 3 Dec 9, 2009 · Does anyone know where I can get a picture or a diagram of the spade numbers on the starter relay for a 75 R90S. New battery fully charged, new Starter Relay - I've tested with the old and the new and get the same behaviour. BMW /7 (81-84) Airhead Boxer starter relayBMW /7 (81-84) Airhead Boxer starter relay 12v - 40 ampOEM quality replacement starter relay for all the BMW /7 Series made between September 1975 to 1984Always a good investment to keep as a spare or replace the ageing originalBuilt with modern materials and technology, ensuring a long and reliable working lifeIt fits all /7 models (76-84) including Feb 11, 2025 · Manufacturer #: 61 31 1 357104, 1 357104, SR9572. Then we put the new on back on, using the same wiring you recommended and it worked fine. The other wire is a smaller diameter RED wire that goes to the starter relay Connector Block terminal (87). Seems like worth replacing with a new one since the original in the picture is 40 years old and those relays are a known spot for corrosion at the connections. Saved about $100 over OEM. Application: BMW Airhead Models. Used as starter relay on BMW Airheads. The Enduralast relay from EME is about half the cost of the BMW relay. Use or depiction of the BMW logo or trademark throughout this web site is for illustrative and editorial purposes only, and to the benefit of the trademark owner, with no intention of infringement of the trademark. 1219. com Parts for Classic BMW Motorcycles My Cart: 0 item(s) Oct 20, 2013 · Stu, have you tried Motorworks the BMW specialist in West Yorkshire. So far I've written documents that cover the /5, and /6 1975-76, electrical systems. Feb 9, 2022 · The output from some of the small diodes on the diode board (that supply the sensing voltage to both the voltage regulator and the GEN lamp) are connected to the /5 starter relay at terminal D+. Attach Starter Relay and Voltage Regulator. Duane Ausherman has a great post for identifying starter problems (https://w6rec. That starter relay output terminal is +12 only when the starting push button switch is pressed. IMPORTANT: If you are viewing this through the YouTube app (ipad / iPhone) you may not be able to see pop-up labels that contain essential information. I have 12+volts to the main terminal on the starter. Sometimes all it takes is plugging and unplugging the starter relay because the problem is corrosion, sometimes not visible, on the exterior spades of the relay and/or its mating plug (socket). For each I document the wiring system circuit by circuit with explanations of what goes where and notes about well know Oct 18, 2016 · Mike ended up replacing his starter relay with one from an automobile, solely based on the (then) $60 replacement price from BMW. Jan 29, 2007 · Just visited Bob's BMW website, and they don't show a listing for an R90 starter relay. Replaces BMW part number 61 31 1 358 194 Feb 12, 2010 · 1. Jul 14, 2011 · According to the Snowbum write up on the cricket relay, you lose the anti start function with a generic relay. Inside the starter relay can, a one-transistor circuit sends electricity to the relay coil. It is important to remember that the starter relay will always have a diode or resister to quench the voltage surge. bigvic54; Jan 8 Feb 17, 2013 · Starter Relay, Front Side Wiring Detail Airhead Special Tools; BMW Motorcycle Projects. 25,000 units affected worldwide and 1582 units in US. Therefore, the handlebar starter button activates a relay inside the starter relay and it in turn activates an even larger relay, called the starter solenoid, that attaches directly to the starter motor. Feb 2, 2008 · ONLY the later model Airheads with starter relays containing a diode are affected. I'm assuming by the comments in this thread that the Guzzi is fitted with the same model starter motor as the later BMW airhead boxers (post 1988) Jan 23, 2019 · Starter Relay, Starter Motor and Solenoid. (referred to as the "Cricket Relay "). Starter motor. Please verify the SR9572 markings on your relay. The Bosch starter relay uses two #87 terminals, and may sub to Bosch 03 32 019 150 for 1977+ bikes. I recommend a diode rated at 400 or 600 volts; and at 3 amperes. It is part of the anti-restart function on /5's only. Used as starter relay on BMW R Airheads. com or call 203-740-1270 ext. BMW Starter Relay 61311357104 Airhead /6 1973-1976 SKU: 61311357104. This is a no fuse, 4 connector block setup. Flasher Relay - BMW Airhead, K Bike; 61 31 1 459 224 / BMW Siemens Relay - Starter, Horn / Various Switches, BMW Airhead & Oilhead; 61 36 1 389 105, 61 36 1 391 Feb 6, 2019 · Connecting Starter Relay. When my relay went bad on my /5 a very long time ago, a switched to a simple relay that didn't have anything to stop you from hitting the starter while the engine was running. Aug 19, 2023 · BMW airhead boxer motorcycle starting problems, starter motor Starter relay, BMW number 61 31 1 243 207, Bosch 0 332 014 118. Horn relay, BMW number 61 31 1 354 The /5 BMW Airheads, only, used a special type of starter relay. Apr 23, 2013 · Does anyone know of any cross ref. 12 BMW 1977 R100RS Refurbish & Rebuild Starter Motor; 12 BMW 1977 bmw - r60/6 - r75/6 - r90/6 - r90s - wiring diagram by gordon wright (gordon@wwt4. Some later model Airheads use a starter relay with a diode inside. If you think of a relay as an electrically operated switch, then BMW uses three switches in series to power the starter motor; the handlebar Nov 12, 2015 · Because I have little faith that the PO hasn't fiddled with this, the DIN numbers are gone from the relay, and there's no diagram on it, I'm asking for some help. Nov 16, 2019 · Jumping the black wire on the starter relay to the battery positive cranks the starter so I know the solenoid and starter works. bnji uofh qtyjsrq txiv oeddht imgx dgzvr kcesz hdhksnj puipt zkrzta gcwyka tghj uzfvplia fox