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nichtubermax A starter that won't spin By George Mangicaro #136221 cras crashed into by a car, but that’s be ide Q Q: A:
the point. I bought the bike back from the insurance company and went about finding a combination of new and used parts, including a complete rebuilt engine with nice powder- coated covers that I got off eBay.
took hours and hours of work over many months, but I got the engine in. It looks like everything is hooked up correctly, but the engine won’t start. The starter doesn’t even spin, and I’m sure it’s connected right. What am I missing? –Chris J. via email
First thing is to refer to the “Click Click Click” article in the [insert issue
here] issue and be 100% sure your battery, starter and starter solenoid are installed and functioning properly. Provided that doesn’t turn up your
problem, the next step is to put the transmission in 6th gear and bump the wheel (with the ignition turned off) in the normal rotation direction to ensure that the engine isn’t stuck. I’m sure the eBay seller gave you every reason to believe the motor is fine, but you never know. It doesn’t hurt to check. As long as the motor turns fine,
take the starter off its mounts. Leave the wiring connected and ground the starter against the engine by touch- ing the starter to the engine case. Have a helper turn the ignition on and press the starter button while you hold the starter firmly against the engine case. You’ll know right
52 BMW OWNERS NEWS December 2016
The Woodruff key is concealed by the big nut on the left; the screwdriver points to the stop disc, which sits atop a spacer on the shaft. Putting the stop disc on the wrong shaft would pinch it between the gear and the engine cover, preventing the gear from turning (and the engine from starting) when the cover bolts are tightened.
away if the starter is bad, because it won’t turn if it’s dead. If the starter turns, then your problem is in the starter gears under the right side engine cover. Take the right side engine cover off and
closely inspect the order of assembly of the components on the shafts. Because it’s easy to mix up some of these components, it’s worth referring to a service manual to ensure the order of assembly is correct. Common problems are broken gears, which are easy to identify; a stuck sprag clutch (a common problem with pre-CAN bus K bikes, actually), which is difficult to diagnose by the untrained eye; a sheared Woodruff key (looks like a small metal D or crescent moon), which would allow the starter to spin but not crank the engine; or
having the stop disc (looks like a small washer) on the wrong shaft or incorrectly positioned on the right shaft, and that would certainly cause this problem. Most commonly, problems such as yours
come from improper assembly of the inter- nal components, and since you reassem- bled your bike from a pile of parts, I would check the alignment and order of every small part under that engine cover.
A couple of years ago I crashed my 2005 F 650 GS. Actually, I was beside
It
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