February 2, 200719 yr hi all ihave had a beta rev 50cc automatic bike given to me can any body tell me were to find the air screw on the carb as there is only one on the outside and thats the tick over one also canany body tell me were to get spares from for this bike plz i think bvm may do them but its a bit far from me cheers
February 3, 200719 yr I think you mean you have a Beta 50 Mini-trial, not a Rev-50 (which has a clutch and manual gearbox). There is no air screw, and you will find that this carb, with it's plastic slide and single jet (yep, there's no pilot jet either) is a cheaper item than you'll find on most lawn mowers and something Beta should be ashamed of.
February 3, 200719 yr The carb is a cheaper item, and although I've never been inside one I expect the mixture can be adjusted by moving the needle up and down in relation to the slider. The UK beta importer 'John Lampkin Imports' will stock all parts, and might even have some upgrade carbs or carb parts. Also on their website is a map locating all the UK beta dealers if you want to stay local. You can find them at - http://www.beta-uk.com/ Bob
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