rjayb Posted September 3, 2015 Report Share Posted September 3, 2015 I made a post today about an issue with some screws coming out of a Mattoon lock out. This bike has had a few other issues with screws and bolts coming loose. Frame, mounts and plastic fasteners and recently the intake bolts have been wanting to back out. I attributed a lot of this to riding more mx since I built my track earlier this summer. Talking with Cam, he feels there might be a harmonic issue somewhere in the motor that's causing this. I made the earlier post before this conversation and want to clarify that I wasn't trying to slam Mattoon's product and hadn't considered this harmonic issue as a potential cause. More or less wanted to see if anyone else had experienced this. Quote Link to comment Share on other sites More sharing options...
sheerider11 Posted September 3, 2015 Report Share Posted September 3, 2015 Well unfortunately there's a lot of shit spinning in these that you'd really have to get stuff out and find some one to test the stuff. A crank can be done easily with the pistons. Get it balanced. As far as the Trans and clutch stuff I couldn't tell you. Maybe it all started when your lock up went. It's gonna be hard to check these things. Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 3, 2015 Report Share Posted September 3, 2015 I've see lockout bolts come loose before , usually I only see the aftermath of problems. After checking the cranks they were outta true a considerable amount. Anyone who has a crank stand set up can also check tranny shafts and pushrod inside shaft . I have seen harmonic issues in pushrods before. Maybe that translated into the lockup assembly's . Just speculation but something to think about I also have a setup to check cranks while still inframe Quote Link to comment Share on other sites More sharing options...
sleeper06 Posted September 3, 2015 Report Share Posted September 3, 2015 I've also seen problems with aftermarket stainless bolt kits . The nylocks tend to cock the nut and maul the threads and not allow the the motor to be tightened properly . Stock hardware is allways the best in these areas Quote Link to comment Share on other sites More sharing options...
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