westfield Posted March 17, 2012 Report Share Posted March 17, 2012 (edited) 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, 2012 by Westfield Quote Link to comment Share on other sites More sharing options...
westfield Posted March 17, 2012 Author Report Share Posted March 17, 2012 Sorted now Quote Link to comment Share on other sites More sharing options...
inchhigh Posted March 17, 2012 Report Share Posted March 17, 2012 what was it? Quote Link to comment Share on other sites More sharing options...
neilnh Posted March 17, 2012 Report Share Posted March 17, 2012 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 Quote Link to comment Share on other sites More sharing options...
ham2 Posted March 17, 2012 Report Share Posted March 17, 2012 Whohoo,a 42minute fix..that's got to be a TC record Quote Link to comment Share on other sites More sharing options...
nzralphy Posted March 17, 2012 Report Share Posted March 17, 2012 (edited) My Rev4T nearly always has a black plug. Having a rich mixture makes the bike run smooth and the lower revs Edited March 17, 2012 by NZRalphy Quote Link to comment Share on other sites More sharing options...
westfield Posted March 17, 2012 Author Report Share Posted March 17, 2012 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. Quote Link to comment Share on other sites More sharing options...
trialtrial Posted March 23, 2012 Report Share Posted March 23, 2012 ...Beta's SSDT set up advice sheet... Where can I get a copy of this advice sheet? Quote Link to comment Share on other sites More sharing options...
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