October 20, 200817 yr Hi, when starting the bike from cold (with choke), it starts first kick, but the revs shoot up, I have to immediately take the choke Off, and blip the throttle a couple of times and the revs slowly settle down. There are no mechanical linkage problems (throttle cable) the the carb is clean. Anyone out there help me?
October 20, 200817 yr i would also love an explanation to this as mine does it too! so far i have not been able to find a cure... but when i posted on here, i was told its just someting 125s do.
October 20, 200817 yr Yes, this is quite normal for the 125 Beta using the Dellorto carb. We had one (an 06), it is quite un-nerving at the start as you think the throttle has jammed. Big John
October 20, 200817 yr This happened to one of my gasgas`s and I found it had a tiny hole in the rubber inlet inbetween the carb and the barrel. May not help but would eliminate that at least. G14
October 20, 200817 yr My sons GG125 does it,revs right up then settes down.Have you tried leaving it or does it rev its absolute bo****ks off?
October 21, 200817 yr Why would it be normal ?.....I'd say you have a fault. At best i'd say you have a leak of air in the rubber boot between the carb and engine. Check it by spraying brake cleaner on the rubber and the joints when the bike is warmed up. Try moving the carb about a bit when do it to get any possible hole to open up. If you have a leak the revs will go up momentarily. The only other fault i can think of is that you could have a starting jet or air jet fault/missing. Ralphy
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