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Old 31-08-2006, 02:14 PM
devon-tony devon-tony is offline
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Default pilot screw on my carbs.

rigt then well confused, if Im winding the screw out, does that increase the air or the fuel??

the pain in the ass is that I have to remove the carbs to be able to adjust the one on pot 2

the screws are on the engine side of the carbs, standard settting is 2 turns out, trying to sort out the low down running, and think these might hold the key, but uncertain as to what way to go and how far??
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Old 31-08-2006, 03:05 PM
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What bike?
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Old 31-08-2006, 03:11 PM
pyro pyro is offline
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If the airscrew is in front of the carb then it will regulate fuel, if at the back then it will regulate air, generally turn it in to richen and out to lean.
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Old 31-08-2006, 04:58 PM
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try to aim for the highest tickover when adjusting pilot screws. re adjust tickover. and adjust screws again.
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Old 31-08-2006, 06:19 PM
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The Gunson's Colortune is a handy bit of kit for sorting the mixture,see here.
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Old 31-08-2006, 10:31 PM
devon-tony devon-tony is offline
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thanks all, I took a risk and tried what someone told me on the phone at a local bike shop

went up to 150 main jets, dropped the needles back to standard, and turned the screws 3 turns out from fully in

WOW what a difference, idle is still needing attention, but its far better

took it out and gave it some beans, that engine really motors

then it all went tits up and the front sprocket came off

planning on chacking the carb balancing this weekend, was perfect but I understand that now I have moved the pilot screws it will probably need doing again??

I have a colour tune on the shelf in my garage, but never been able to fully understand it

however it should be easy on this engine as its 8 plug, will run fine anyway and still be able to see the colours
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