has any of the yfz owners out there had a problem with the head pipe falling off or the the system rattleing apart and if so how did you correct the problem?
has any of the yfz owners out there had a problem with the head pipe falling off or the the system rattleing apart and if so how did you correct the problem?
Last edited by CPLMULLINS; 10-22-2008 at 06:18 PM.
Stock exhaust?
Jeremy
06 TRX450ER
08 TRX450ER
08 CRF450 #46
Newport Beach Orange County Web Design
Online Pick-N-Pull
Headpipes becoming loose can be solved by:
1.) Always replace the copper head pipe flange crush washer (washer between the head pipe and the head) anytime you remove or replace a head pipe. A must if changing to a different head pipe.
2.) Torquing the head pipe nuts slightly tighter then factory specs is VERY common
3.) Make sure all exhaust bolts and subframe bolts are tight... any vibration into the exhaust system (even back at the can) will pass that vibration to other parts, and loosen things up.
4.) Double-nutting the head pipe studs is great if you have room... that may mean switching away from the factory nuts if they are a tall nut and won't allow a second nut to be attached to the stud (not enough threads)
5.) Drilling the nuts or studs and saftey wiring them is a 100% cure for loosening head pipe nuts
6.) Some pipe manufactures have more of a tendency to "break apart", for lack of a better description![]()
Robert Kramar #119
WORCS Pro2/Pro-Am
www.robertkramar.com
* Kenz Cycle Tech * Walsh * Laker Custom * LTE Exhausts * DFR * Mark Elliot Photography * RPM * HiPer * Flexx * IMS * Precision Racing * Master Designs * Gorilla Powdercoating * 488 Web Design * CP Pistons *