Posts
33
Joined
7/14/2013
Location
Reading, MI
US
dlewy946
10/10/2014 2:45am
10/10/2014 2:45am
Edited Date/Time
10/11/2014 1:04pm
I bought the bike back in 07 the previous owners took good care of it maintence wise, I'm just having trouble putting any more faith into it, I've went through multiple cranks crank bearings and rod bearings. We always throw a new piston in the bike as well depending on the piston head. It's a great bike I just don't know what's going on with it. Starting the 5th rebuild tonight.
Always run a wiseco top and bottom end kit
Always run a wiseco top and bottom end kit
Paw Paw
The Shop
It could also be something like the way it's being installed, cases that were incorrectly machined, a off-balance flywheel, or any number of odd issues. I would disagree that 40:1 is the issue, particularly when it's the crank going out, not the piston. Roller bearings actually don't need very much lubrication and the flash point of virtually any oil you're using isn't going to be an issue for the crank (though it can be for the piston).
I have seen where the Wiseco cranks have earned a bad rep, while the Pro-X ones have the opposite. Given your struggles, it might be time to try a different manufacture for the next rebuild. Seems more logical than going for rebuild #6.
Post a reply to: 04 RM 144 rebuild questions