March 17, 201214 yr I have just bought a Beta 4T 250 2008 and the plug is very black and sooty, I suspect its running rich. Does anybody know what the air screw / fuel screw settings should be ? Thanks Edited March 17, 201214 yr by Westfield
March 17, 201214 yr just as an add on too this is it just my air filter that gets absolutley covered in crap every time i ride or does it happen on all rev 4s ? cheers
March 17, 201214 yr My Rev4T nearly always has a black plug. Having a rich mixture makes the bike run smooth and the lower revs Edited March 17, 201214 yr by NZRalphy
March 17, 201214 yr Author Pulled the Carb off and set it as per Beta's SSDT set up advice sheet, it seems better but tomorrow will be the proof in the pudding.
March 23, 201214 yr ...Beta's SSDT set up advice sheet... Where can I get a copy of this advice sheet?
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