Needle shim modification

xt477 · 05-31-2007, 10:53 PM

I spent part of today talking to "THE" GZ mechanics. They run a state motorcycle safety class with almost 500 rebels and GZ's. I was telling him about my want to perform the shim procedure and he tells me that the best way to accomplish this is to drill the cap off of the pilot jet crank it closed lightly and then open it by 2.5 turns. Factory is usually around 1.5. He says that shimming will dump too much gas potentially causing exhaust back firing.

Will be a year before I find out but thought someone else might use this info.

05-31-2007, 10:53 PM	#1
xt477 Member Join Date: May 2007 Location: Columbus Ohio Posts: 41	Needle shim modification I spent part of today talking to "THE" GZ mechanics. They run a state motorcycle safety class with almost 500 rebels and GZ's. I was telling him about my want to perform the shim procedure and he tells me that the best way to accomplish this is to drill the cap off of the pilot jet crank it closed lightly and then open it by 2.5 turns. Factory is usually around 1.5. He says that shimming will dump too much gas potentially causing exhaust back firing. Will be a year before I find out but thought someone else might use this info. Login or Register to Remove Ads
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