2006 Yamaha Bruin 350 Balance Gear

[rubberhammer]

Hi Everyone Can you please help me try to understand my quad I have a 350 bruin 2006 and have just replaced the timing chain it will run but must be slightly out the only part that I was unsure of is the balance gear WHATexactly does it do is it anything to do with timing thanks would welcome any info as to its purpose Regards Rubberhammer

[Bry371]

A single cylinder engine is impossible to balance so they use a balancer to offset the power stroke. This is to smooth out the engine vibration. It has to be timed according to the marks on the crank gear and balancer. The timing chain only keeps the Cam in time with the Crank so if you did not pull the entire side cover you most likely did not effect the balancer timing.

[DirtDemon]

Pretty knowledgable 16 year old there, try lining up the timing mark on the cam again, there should be a plug you can remove above the flywheel to expose the TDC mark for crank position reference. If you did have the ballancer out and didn't put it in right, the problem you would have is vibration.

[rubberhammer]

Thank you both very much for your replies they have been very helpful Rubberhammer

[Ajmboy]

* Added year, make, and model, to thread title.