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Mikuni Ggggrrroaaann!


the addict
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Been pointed out to me this evening what is the cause of my running problems with the bike,fuel spillage and plug popping, will get it confirmed next week and post the outcome when its sorted incase anyone else has the same problems. Easy to fix though just need a few new parts and a drill

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Yer, will be having that done and the other couple problems it has, tell me this, why dont Beta do these mods at the factory for gods sake if it has to be done to get the bike run correctly? Why do we all put up with S***e like this, I would rather pay

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I think they wang the carbs straight on from mikuni and dont bother checking them. I found a piece of aluminuim under my choke plunger making it a t.wt to start. im thinking of getting a delloroto carb for mine! there on special offer at the moment on there uk website

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Yer, will be having that done and the other couple problems it has, tell me this, why dont Beta do these mods at the factory for gods sake if it has to be done to get the bike run correctly? Why do we all put up with S***e like this, I would rather pay
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my almost standard works lovely thanks... !!

Exactly Heath, almost standard? why arnt they supplied like this in the first place?

Rick, would nt bother asking mate, we'll never get hold of the proper bits for the Mikuni anyway. Did some work today on the carb thanks to Rod, pretty much sorted the lower end running during the past couple of months but the bike will not climb hills strongly, main reason for this is me shutting off due to the huge amount of pinking at mid plus throttle openinging on biggish climbs, pinks so bad never wanted to push the engine harder incase it did a full lean out. Tried for the first time today to absolutely nail the ****** in third and forth up big climbs and the bike is ballistic. Seems the problem is carburation at the point where the main takes over from the pilot and not as I thought too small a main jet. After about 10-12 full throttle runs did a plug chop and the plug was nice and clean, maybe a little weak but would expect that after continuos blasts and immediate shut off. Not 100% sure what to do about the big pinking but may lift the needle one notch and see how it goes and cross my fingers it does nt mess the lower throttle openings to much

Edited by Betarev3
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