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Unread 09-30-2017, 05:12 PM   #1
Getting Wild
 
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Default bad vibration

i got my g2 conversion done with preditor 420 motor runs great has lots a power but viberates like crazy. is this normal?
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Unread 09-30-2017, 08:27 PM   #2
Crazy Ole Man
 
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Yamaha
 
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Default Re: bad vibs

Quote:
Originally Posted by pushrod345 View Post
i got my g2 conversion done with preditor 420 motor runs great has lots a power but viberates like crazy. is this normal?
What type clutch are you using?
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Unread 10-01-2017, 09:17 AM   #3
Getting Wild
 
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Default Re: bad vibs

im useing a comet 780 i got off ebay
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Unread 10-01-2017, 09:18 PM   #4
Vegas modded 420
 
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Default Re: bad vibs

If you got rid of the rubber motor mounts it will have a little but a lot, something is wrong. Ether the engine is not secure and something is loose/broken or there is something wrong with it. So guess it depends on your definition of a lot. With no rubber mounts you will feel it unlike stock mounts.
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Unread 10-02-2017, 05:25 AM   #5
HBR
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Default Re: bad vibs

Was the engine new or used?
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Unread 10-02-2017, 08:47 AM   #6
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Default Re: bad vibs

new enging with stock rubber mounts
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Unread 10-02-2017, 08:55 AM   #7
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Default Re: bad vibs

You could remove the clutch and run the engine to rule in/out the clutch?


Do you happen to have a video of it running? Vibration with these engines might be a little subjective. These wont be as smooth as the stock motors.
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Unread 10-02-2017, 10:41 AM   #8
Crazy Ole Man
 
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Default Re: bad vibration

Are you running the torque strap or cable - front left corner mount? As I own a G2 I can say that with any engine upgrade you should replace all 4 mounts.
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Unread 10-02-2017, 01:19 PM   #9
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Default Re: bad vibration

How do your motor mounts look? They are rubber, if damaged in any way, elevated vibrations is the first thing to happen.

Inspect em ASAP.
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Unread 10-02-2017, 01:39 PM   #10
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Default Re: bad vibration

i put a torque strap on and it helped alot the mounts are weak but i have it straped down now and it is much better, i guess i was used to the stock yamaha motor, it has a lot more power now, and is twice the fun, i want to thank all of you, for your help
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