Need some input re: right balancer installation. - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 12-03-2011, 02:30 AM Thread Starter
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Need some input re: right balancer installation.

I'm in the process of reinstalling the right balancer and have a question for those of you that have been there. When I tighten the bolt with the camfered washer, the flat, inner surface of the washer butts up against the outer surface of the collar and leaves about a 1/8" space between the camfered surface of the washer and the camfered surface of the gear face. This allows the gear to slide in and out on the shaft about the same amount. I didn't notice this when I took it apart and I'm trying to find out if this is the way it should be. Thanks for your input.
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post #2 of 8 (permalink) Old 12-03-2011, 09:29 AM
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I don't remember having play in that, but I may just not remember. Can you take a pic? I'm better with the visuals and can tell you if it looks right.

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post #3 of 8 (permalink) Old 12-03-2011, 11:20 AM
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Never been that far into the engine, but how does it work if you flip the washer around? Also, Roach tore his engine completely down and reassembled everything, and made some great videos. He may know, or it may even be in one of the videos. Do you have a manual? It might say which way the washer goes. Also is there a possibility that there might have been some shims in there?

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post #4 of 8 (permalink) Old 12-03-2011, 09:01 PM Thread Starter
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Yes I do have a manual, which does not show any shims. I have watched the videos but can't see much about that aspect. I was pretty careful about part sequence when I took it apart. Washer is facing the right way. Can't see any other way it could go together as it's pretty straightforward. I'm thinking that if the camfered edge of the washer DID press against the face of the gear, the gear wouldn't be able to free spin.
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post #5 of 8 (permalink) Old 12-04-2011, 09:03 AM
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Service manual describes the reinstall this way:
  • "Install the balancer and starter clutch, aligning the weight punch mark with the shaft punch mark.:
  • "Be sure the collar fits into the copper washer."
  • "Install the washer with the chamfered side facing inboard."
  • "Apply a non-permanent locking agent to the threads of the balancer shaft bolt."
  • "Temporarily install the left balancer."
  • "Tighten the balancer shaft bolt to the specificed torque..."

Actually makes sense that the chamfered side slides into the balancer - no reason to chamfer it otherwise!

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post #6 of 8 (permalink) Old 12-18-2011, 06:23 PM
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I put together and then tore apart my 01 motor more times than i want to admit to. Each time the same amount of gap existed that you were talking about. knock on wood it seems to run fine.

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post #7 of 8 (permalink) Old 12-18-2011, 11:25 PM Thread Starter
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Thanks for your input. I notice that you also have low mileage. What problems have you had with your engine? Mine has a little over 4700 miles and spun the bearing on the front conn. rod.
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post #8 of 8 (permalink) Old 12-19-2011, 01:08 PM
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I actually can't remember, but it sounds right to have a little gap. That gear needs to freewheel on that shaft when the engine is turning.

That clutch is neat in it's operation, the gear will turn the shaft in one direction and freewheel in the other. That allows the starter to spool up the engine, and is disengaged from the shaft when the engine takes over.

Here's the video of me installing that washer.

I'd say you're doing it correctly.

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