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Old 10-10-2012, 03:18 PM
borntofli borntofli is offline
Motorized Bicycle Elite Member
Join Date: Jul 2012
Location: tx
Posts: 304
Default Extreme engine vibrations at higher rpm's...

With the clutch pulled in and revving it up, anything past mid rpm's produces severe vibration-shaking...... Runs fine at lower rpm's, but above mid point the shaking becomes unbearable.....

Driving down the road, smooth till 21 mph... after that the vibration escalates that I never go past 23 for fear of blowing it up...

Which internal part is wearing out and causing this???

I have about 5-600 miles on the engine...

HT 66

amsoil 50:1
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