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Float height adjustment

This is a discussion on Float height adjustment within the Yamaha YFM660R Raptor (2001-2005) forums, part of the Performance /Technical category; I recently put in a k&N air filter and an exhasut and noticed gas overflowing everywhere. So i followed the clear tube method explained by ...

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Old 06-19-2005, 03:41 PM   #1
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Default Float height adjustment

I recently put in a k&N air filter and an exhasut and noticed gas overflowing everywhere. So i followed the clear tube method explained by freez but the fuel line was at 4-5 mm above the split instead of 3. What could happen if it is above 3mm by a little? I noticed a little throttle studder as i was climbing some hills and when i was sideways on a hill gas dumped out of the over flow tube on the right side(the low side). does a stock machine spill gas out of the tubes during hill climbs and stuff like that, i just never thought to check? what do you suggest is going on? alright thanks
2004 limited edition raptor
Trinity stage 4 exhaust
Dynojet kit
K&N air filter and drilled air box
Cobra bumper and grab bar
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Old 06-19-2005, 09:34 PM   #2
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well according to the manual its suppose to be 3mm below the split but if you read the post freez answers that question after adjusting my floats cause i was having an overflow and gas spilling its pretty damn impossible to get it around 13mm float level and have a clear tube of 3mm below.

so i adjusted 3mm ABOVE the split and have a float level around carb#1=15mm and carb#2=16mm or visa versa it made the clear tube 3mm above...anyways it runs beautiful and if you read on it the post i think he said if your doing wheelies it will spill alittle bit, it shouldnt do it if your normally riding up hills, i believe you have to be at a nice angle for it to start spilling if properly adjusted i would say anything past 10 - 11 and def straight up (if your thinking about the the angles as a clock, u know what i mean)
2003 Raptor 660R - DG front bumper, DG thick nerf bars, DG rear skid plate, DG chassis skid plate, GYTR a-arm guards, GYTR oil cooler, Tag metal handlebars, Billet raptor bar clamp, vito racing clutch lever, ITP wheels, Maxxis razr tires, yamaha shock covers, parking brake eliminator
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