abob

Just installed a Cheetah Cub kit running big bore 434 with 35mm Keihins, just wondering if the standard BR8ES/9ES plugs are still applicable?

Thank you all for the advice,looks like 35's it is. The Cheetah Cubs i got are from TRINITY. I asked for a 68 bore but was told that on that particular day they were out and they had these 69's which had just arrived. Truth be told i would not know the difference and i did not try to measure the bore. Guess the best people to check is with Trinity Racing.

Hi All, Got a Cub set up... 69 bore / 58 stroke(plus 4) stage IV head. This is all new to me as i have been running stock engine so far. i ordered a set of 33 Keihins as i was looking for power on the mid range but instead i got a set of 35's. Was told 35's are more tunable. I' m sure u guys on this forum have much more experince. All advice appreciated. THanks!

Hi All... New to this forum. Just got a Cheetah cub kit 58mm Stroke / 69mm Bore Stage 4 billet head / 20cc domes Programable Cdi I was running 30mm mikunis (round slides) on my stock engine, and i intend to try them out. i know i would be better of with larger carbs but the budget's a bit tight right now.Guess what i want to really know is that will the 30mm's work in the meantime and if anybody's got an idea of the jatting i should start with. ( i'm at sea level 290 mains/32.5 pilot on 350cc yamaha / ave. temp. mid to high 80 F) Next question ..or help needed...20cc domes on this set up, can i run pump gas with 92-93octane? I was told if my compression was 160 or less it would be ok. Should i try octane boosters or would the safest bet be getting larger domes? 21-22cc? Finally...i sure the stock ignition curve would work but does anybody here played about with ignition curves for the above big bore set up? Thank All!