jetting,idle,altitude

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jjavaman
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jetting,idle,altitude

Post by jjavaman »

Hi guys,I need some help. Where I go riding, I start at sea level and go up the mountains to 4000ft or higher, as I get higher the idle goes down and gets to the point where it dies all the time, we ride some pretty tight technical trails and I need to concentrate on the terrain rather then revving it to keep it running. I'm guessing it has to do with the air screw, should I stop and turn it out a 1/4 to 1/2 turn on the way up? Would the RB carb/head mod be what I am looking for? Also, I don't think it has the low end snap that I keep hearing about,mid range and up, touch the gas and instant response, if I'm in 2nd gear at 1/8 throttle and gas it to pop the front end over a log, does not happen till it revs up a bit? I'm running a 135 main/42 pilot and the clip is 2nd from the top.
Another thing, does anybody else get a sharp kick in the back when you hit a pot hole at highspeed, I get a jolt up my spine that makes me want to stand up all the time! I'm thinking it is time to get the shock rebuilt or is this normal?
97-220 with a PC pipe. 2015- RB carb and head mod
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G22inSC
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jetting,idle,altitude

Post by G22inSC »

200 or 220?
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bufftester
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Re: jetting,idle,altitude

Post by bufftester »

sounds like you should take a trip through the jetting guide. Properly dialed in you should be able to maintain a fairly consistent powerband as you climb using just the air screw to keep idle up.
jjavaman
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jetting,idle,altitude

Post by jjavaman »

Sorry,it's a 220 with a PC pipe on it.
97-220 with a PC pipe. 2015- RB carb and head mod
jjavaman
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jetting,idle,altitude

Post by jjavaman »

After reading the jetting guide once again I'm guessing I will be adjusting the air screw all the up and down the trails to keep the idle consistent, and I'll have to raise the needle 1 clip to get the snap I want a low revs. Simple,right?
97-220 with a PC pipe. 2015- RB carb and head mod
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TWMOODY
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jetting,idle,altitude

Post by TWMOODY »

RB sells a modified air stryker carb that is more forgiving for temp and altitude changes.
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