Posted March 20, 2005 - 09:58 AM
My ride is an 02 wr426 (canadian) that has mods. powerbomb head pipe, powercore 4 tail pipe, removed air box cover, uni filter, racetech front and rear boingers, yz tank, shrouds, blah blah blah. Most notably, when I got it, it was hard to start, hard to keep running and was popping all over the place. Didn't take me long to figure out that it was as lean as it could be. With help from Chris at FMF on jetting, I finally got it to start, run and perform well with the exception of just off idle. When I blip the throttle it usually picks up well but if I goose it too quickly it will stumble and then go. Where I ride we do a lot of technical trasition from climbing to descending (deep water bars). Good throttle control being the key to having a good day up there. I have surmised that the measured blast that the accelerator pump gives when the throttle is rolled on is not enough to go with the other mods. Boyesen now has an aftermarket diaphragm cover that is supposed to work very well. Is anyone out there using it yet and if so does it work well on a wr426
Posted March 20, 2005 - 04:39 PM
Posted March 20, 2005 - 09:12 PM
Posted March 23, 2005 - 07:23 PM
Here are some links......for the P-38
In the new transworld they tested and spoke very highly of the boyesen accelerator cover, but who knows??