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Author Topic: Carb Adjustment Question  (Read 2666 times)

fredgold52

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Carb Adjustment Question
« on: January 11, 2008, 03:55:26 pm »
Does the low speed adjustment (not idle but mixture) screw meter air or gas?  When you turn the screw counter-clockwise, does it get richer or leaner?

Thanks,
Fred
2006 '65' and a 200cc Stella, Indian all the way

Vince

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Re: Carb Adjustment Question
« Reply #1 on: January 11, 2008, 05:13:33 pm »
It meters air. Unscrewing (counter clockwise) will let in more air. This leans out the idle mixture. Screw it in (clockwise) to cut off air. This will richen the mixture.

fredgold52

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Re: Carb Adjustment Question
« Reply #2 on: January 11, 2008, 05:16:15 pm »
Thanks Vince.  I'm glad I asked because that's just opposit of how my scooter carb works.  Now all I have to do is keep it straight in whats left of my mind about which bike I'm working on.
2006 '65' and a 200cc Stella, Indian all the way

LotusSevenMan

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Re: Carb Adjustment Question
« Reply #3 on: January 11, 2008, 05:18:37 pm »
http://www.iwt.com.au/mikunicarb.htm

Might prove useful as Mikcarb is the Indian (built under licence) Mikuni!
« Last Edit: January 11, 2008, 05:20:18 pm by LotusSevenMan »
If it ain't broke-------------------------- fix it 'till it is!

Royal Enfield Miltary 500cc  (2003)
Honda VTR FireStorm (SuperHawk) 996cc 'V' twin
Kawasaki KR1 250cc twin 'stroker
Ducati 916 'L' twin

luoma

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Re: Carb Adjustment Question
« Reply #4 on: January 11, 2008, 06:58:41 pm »
Works the same way on the CMW flat-slide carb. I was used to the old type fuel mixture and screwed it up a bit. My mechanic buddy educated me. It was the last step I had to take to really dial in my bike. Runs almost too perfect now

LotusSevenMan

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Re: Carb Adjustment Question
« Reply #5 on: January 12, 2008, 04:55:11 pm »
luoma.
Oh no!                        Dangerous time!!!!!!
I usually find that just when I get any mechanical piece of equipment about perfect it goes 'bang'. All the while there are tiny outstanding niggles/things to do it's OK.
All perfect? As the song says "There may be trouble ahead........"

Hope I it's just me and not S*ds Law in action eh?
If it ain't broke-------------------------- fix it 'till it is!

Royal Enfield Miltary 500cc  (2003)
Honda VTR FireStorm (SuperHawk) 996cc 'V' twin
Kawasaki KR1 250cc twin 'stroker
Ducati 916 'L' twin

luoma

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Re: Carb Adjustment Question
« Reply #6 on: January 12, 2008, 06:50:08 pm »
Worries me too. Especially now that winter has set in and I will be wanting to tinker more often than ride. Guess I'll just have to invent some things to do to it, like new tires, or heavy duty clutch springs.

grumpyed

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Re: Carb Adjustment Question
« Reply #7 on: January 26, 2008, 06:13:09 am »
Easy way to tell at a glance is if the screw is nearest the engine it is fuel adjust.If its back by the filter side its an air bleed.