help me solve an arguement?

is the Evo balanced? i am pretty sure its not, brother says it is. i know with the twin cams the 88 is unbalanced and the 88B is balanced, and with the evos the softail and dyna have the same motor. Also, i need proof, or i need to know how to find it. physically looking at something on the bike would be best, where would i look to find evidence of a balancer or lack thereof on the actual bike? thanks.

 

I think the more correct term is counterbalanced. The 88b is counterbalanced, the 88a and evo are not. Balanced refers to a process performed to the flywheel/rod assembly prior to installation which actually aligns the flywheels. If the flywheels were not balanced, the bike would be uncomfortable if not impossible to ride for any distance.

 

No, the Evo is not balanced (or counter-balanced). The bulging front of the crankcase on the TC betas is where the balancers live.

 

Balancing really doesn't involve aligning the flywheels, at least in the old sense of the term. Rather it is the balancing of the flywheels and includes weighing of the piston and rod assemblies to make sure they are within a certain amount of each other. Here's a link that details it nicely: http://www.rbracing-rsr.com/downloads/sscycle.pdf

 

Correct, but the term balance is used to many old wrenches to refer to aligning the flywheels when assembled on a trueing stand. I think what the original poster meant was to ask what engines were counterbalanced.


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right, i meant counter balanced, sorry.

 

Truing the wheels, and balancing are 2 different jobs.