750 twin starter clutch ????

  • jake100
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750 twin starter clutch ????

15 Aug 2009 14:55
#314105
Just what fails on these things some times it slips (alot) I took it apart I was hopeing that a spring would be broken/missing. But all looks good no obvious sign of anything damaged.?? Would a little stronger spring be in order?? Thanks Jake

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  • MFolks
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Re: 750 twin starter clutch ????

15 Aug 2009 15:21
#314107
What type/grade of oil are you using? Some of the auto oils contain a friction modifier that can cause slipping.

I've read/heard the Shell Rotella 15W40 and 20W50 works well in the Kawasaki air cooled engines.
1982 GPZ1100 B2
General Dynamics/Convair 1983-1993
GLCM BGM-109 Tomahawk, AGM-129A Advanced Cruise Missile (ACM)

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  • bountyhunter
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Re: 750 twin starter clutch ????

15 Aug 2009 16:41 - 15 Aug 2009 16:42
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jake100 wrote:
Just what fails on these things some times it slips (alot) I took it apart I was hoping that a spring would be broken/missing. But all looks good no obvious sign of anything damaged.?? Would a little stronger spring be in order?? Thanks Jake
Look for wear on the hub surface the rollers engage. Also, saw wear inside where the rollers retract to. I don't think stronger springs will do a thing as they don't apply the engaging force and that would keep them from retracting as they must do.
1979 KZ-750 Twin
Last edit: 15 Aug 2009 16:42 by bountyhunter.

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  • jake100
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Re: 750 twin starter clutch ????

15 Aug 2009 22:37
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Well I'm useing Kendall motorcycle oil and like I say hub looks smooth nothing look real chewed up or worn out the only sign of possable wear is on the things (plungers) that are on the end of the springs that contact the rollers. The manual doesn't give any wear specs on these however. Jake :dry:

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  • bountyhunter
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Re: 750 twin starter clutch ????

16 Aug 2009 16:49
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Look at the areas in the housing that the rollers rub across as they go in and out. If there is any roughness, it may be keeping one of the wheels from popping back out correctly.
1979 KZ-750 Twin

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