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200xcw: Poor idle at high altitude. Do I need smaller or bigger Pilot Jet?

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I got poor idle at high altitude. Do I need a bigger or smaller Pilot Jet??? Bike runs great otherwise. It's a Rekluse fitted bike so I need to raise the idle. It's always fine at home 1.5K elev. but when I take it above 5K elevation i have to turn the idle screw all the way in just to get it barely to idle

current settings (factory recommended for elevation and temp):

air screw: 2 out

PJ: 40

needle: NOZI

clip: 2 from top

MJ: 155

Carb: Keihin PKW 36S AG

thanks for any input

Marty

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^^^ I rechecked it, I seem to get "best" idle at 1.5 out. That's with the idle screw all the way in

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when you open it past 1.5 turns does the idle go up?

no, it's pretty much the same

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had a compession gauge in it lately?

the air screw suggest the pilot jet is correct.

you lose compression at altitude.

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will check compression. bike runs good but it does have close to 100 hours on top end

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compression good. Went down to 38 on pilot. Took it to 8k elevation. Problem solved.

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should have been able to open the air screw past 1.5 turns and achieve the same thing.

I agree. that's why this whole thing is so perplexing. Anyway, I'm happy now:ride:

Thanks for your input Eddie!

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