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The answer above covers your question. Is there an underlying problem that motivated you to open up the primary, clean things, and take an excellent picture? Knowing WHY you are asking would give a better idea of what we should look for. Or, is this just the first time you have seen the "business end" of a starter?
The answer above covers your question. Is there an underlying problem that motivated you to open up the primary, clean things, and take an excellent picture? Knowing WHY you are asking would give a better idea of what we should look for. Or, is this just the first time you have seen the "business end" of a starter?
Over the past couple years when the bike was warm, I'd go to re-start it and hear this gawd awful screeching/grinding noise. Sometimes it would fire right back up after releasing starter button and hit it again. Other times, it could take 4-5 or more attempts before it would finally start. It never seemed to be coming from the starter area and more towards the front of the motor. I've already replaced the original OEM compensator sprocket with another OEM one and the noise went away temporarily. But with less than 10k miles, the new one was showing some wear and the screeching noise came back. After replacing OEM with a BDL single piece sprocket and before I buttoned it back up, I was hoping for a keen eye to spot any issues with the starter gear, if any. I'm thinking I may start using a lighter viscosity oil in the primary side since there's really nothing to lubricate except for the clutch side bearings and the chain. Also since there's really no heat exchange for the oil to do its thing (unlike in the motor), chains do better with a lighter weight oil. Hopefully this new compensator will eliminate that horrendous starting noise. Took it for a test ride and wow did it shift much, much smoother.
On a FI motor be it bike or car. Never hit starter and let up. I realize we do not want to hold it in once running but on the second try, the system has more fuel then necessary. Surprised in what you are doing that you don't have to hold throttle open to clear it to get it running. Also ever hit of the starter wears the contact switch on soliniod. So ever start you make is like 4 or 5. Starter is not going to hold up to that.
That noise may just be gear hanging from not being pulled back out by spring. Be careful cecking that with cover off.
You have eliminated the starter teeth and ring gear teeth clashing against each other as one or both would show damage if that were happening. My guess is that your previous stock compensators, as they got sloppy, beat your starter drive clutch to an early death. Typically the grinding noise is the sprag clutch in the starter drive slipping. It is completely enclosed in a small "can" on the opposite end of the starter drive that is peaking into the primary case. Without cutting it apart, the sprag clutch can not be inspected. A new starter drive should cure your occasional grinding noise. About 8 years ago, I replaced the starter drive on my 08 Road King that also had the grinding noise with an AllBalls brand unit and have never had any further trouble. Just under 80,000 miles on that new starter drive.
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