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Since I am STILL trying to eliminate the mid range stumble/sputter that plagues my bike, I have been searching for all kinds of carb tuning info. I recently discovered (along w/help from thewiz) that I am running 127.5 mains w/stock 42.5 pilots in my carbs. Stock mains are 115 for 1 & 4, and 120 for 2 & 3. The only intake/exhaust mods I have are a K&N filter in the stock airbox and the Jardine "spaghetti" pipes w/o the crossover tube. ALL mods were done prior to my ownership , except for the PUC wire repair that I did replacing all 4 wires all the way back to the connector.
Back to the mains: they are bigger than the size recommended per DennyZ's (awesome) calculations, but the plug color looks good, and at WOT it runs like a cheetah w/its a$$ on fire once it gets above a certain RPM (non-working tach, can't tell you exactly where that RPM is). From idle to where I would expect the needle jets come into play, it runs good as well.
If you are reading this Prom, you mentioned once before how to adjust my "un-adjustable" needles, but I can't find where that was. Would you please explain that to me again? Should I change my mains back down to a smaller size, or will that affect WOT too much? Mind you, I am not a triple digit rider (planedick
), but every once in a while, I too like to get on it a bit if I'm fairly sure that Jon and Ponch aren't around. I just want it to run like it used to when I first got it.
Anyway, check this link out. It's got some really good info, even if it's not talking about our beloved BS34's. Any input in the right direction is, as always, greatly appreciated.
Back to the mains: they are bigger than the size recommended per DennyZ's (awesome) calculations, but the plug color looks good, and at WOT it runs like a cheetah w/its a$$ on fire once it gets above a certain RPM (non-working tach, can't tell you exactly where that RPM is). From idle to where I would expect the needle jets come into play, it runs good as well.
If you are reading this Prom, you mentioned once before how to adjust my "un-adjustable" needles, but I can't find where that was. Would you please explain that to me again? Should I change my mains back down to a smaller size, or will that affect WOT too much? Mind you, I am not a triple digit rider (planedick
), but every once in a while, I too like to get on it a bit if I'm fairly sure that Jon and Ponch aren't around. I just want it to run like it used to when I first got it.Anyway, check this link out. It's got some really good info, even if it's not talking about our beloved BS34's. Any input in the right direction is, as always, greatly appreciated.
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