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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
high altitude jetting issues
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[QUOTE="smahala1286, post: 1370633, member: 55881"] I recently took my bike up trail riding in the mountains and I was having some jetting issues. I expected it to run rich since I didn't re-jet. Currently the bike is jetted for around 5,000ft. The trail I rode started around 8,000-9,000ft and went up to 11,500ft. The bike idled and started fine. The issue was with the low end. It would bog bad at low rpm's then run fine at high rpms. It made it difficult to start from a dead stop, I had to really feather the clutch. If it was in the low rpms it would bog bad no matter what the throttle position was, I had to constantly flick the clutch to get it higher in the rpms. The bike is a 95 rm125, I know 125's have no bottom end but its not like this at lower altitude. Would this be an issue with the pilot jet? What do you guys do for jetting in mountain terrains? A lot of the trails around here have an elevation change of around 2,000-3,000ft. Thanks for the help. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
high altitude jetting issues
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