Thread: DR350 Thread
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Old 01-05-2013, 07:53 PM   #14094
2bold2getold
Beastly Adventurer
 
Joined: Dec 2011
Location: DFW TX
Oddometer: 1,558
You may be right about the slide spring preload, but not sure how much .020" more compression makes on these 20+ year old springs. I see what you're saying about throttle rotation and slide height. Maybe thats why all these jet kits say to cut off some of the spring after shimming the needles. Still seems kind of hit or miss to me. It would take a lot of equipment to determine if those kind of changes made significant improvements. I think it's hard to beat the factory guys with their budget and testing. I wouldn't do any of it on my DR350. Mine is bone stock and runs great. ..... And just wanted to illustrate idle concerns can be connected to the idle air jet as well as the fuel jet.
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