bansheeqc Posted February 10, 2009 Report Posted February 10, 2009 I actually looking for a set of carb for a 4mill cub. i think about 39 to 41 mm keihin carb or lectron carb. what is the best setup??? billet bowl, powerjet. i think alky keihin not run on gas...but lectron run with little change... what is the best choice. Quote
locogato11283 Posted February 10, 2009 Report Posted February 10, 2009 youre gonna get personal preference here. i personally think lectrons are junk. ive run them and didnt like them. i thought they were cheaply built with shitty hardware, and for the price they shouldnt be.. i have run 33, 35 and 39mm pwk now and love them. Quote
dajogejr Posted February 10, 2009 Report Posted February 10, 2009 You knew I was gonna see this thread....Loco...LOL. I'm on the other side of the coin. I've used 39PWKs and 40mm Packard Lectrons on my 10 mil alky cub, and I'll never go back to PWKs... In my opinion, here's the pros and cons of each: Keihin PWK Pros: Very common Cheap for parts Cheap priced carb A LOT of people running them, bigger support base Cons: Jets to buy and/or Drill if you run methanol Can not be converted from methanol back to gas, Dump tubes are not replaceable, so if you drill it for alky, you're stuck with it. Can not change needle and seat from fuel pump to gravity fed Pilot jets to buy, Needles to buy, Mains to buy and drill. Must remove the bottom float bowl or drain plug to change mains, must remove bowl to change pilots Lectrons: Pros: Easier to tune ONCE YOU GET THE PROPER NEEDLE/Metering Rod. Can not stress this enough, the right needle is key. No mains, pilots. Just a needle and a power jet. Can change from alky to gas and back with the change of the metering rod/needle All changes made from the top of the carb, no need to take the float bowl off unless you switch needle/seat from gravity to fuel pump Can change Needle and seat from gravity to fuel pump Better design, easier to adjust, run more cleanly From 80 degree summer to 0 degree winter riding, barely had to adjust them...much more consistent fuel delivery due to design. Cons: Expensive Not nearly as many people run them, there are only two distributors in the US for them, Packard and Fast By Gast. They are not conventional, so...slight, albeit easy, learning curve. Getting the correct needle/metering rod is key. Without that, the carb will never tune or run right. Not as large of a support base for them. Parts are more expensive. As said, I've run both, you'd have to pry the Lectrons from my hands. Several people that have ridden my bike comment how crisp and clean it runs...and a few have bought Lectrons because of it. I would say I'm fairly strong in carb tuning...so after a bit of advice from Lectron users and some reading up on them...I got the hang of them pretty easily. I can not stress enough, if you don't have the correct needle/metering rod, it will never run right. That is the key, and it causes some to get very easily disturbed and distracted by them...compound that with the price. The Lectrons I have are top notch quality in finish and craftsmanship. But my carbs are only a year or so old.... Quote
wesw Posted February 11, 2009 Report Posted February 11, 2009 for alky and drag racing lectrons would the sweet ticket like jogger said. ran both and like both of them will say the hv lectrons do make the bike more crispier. being taper bored. Quote
locogato11283 Posted February 11, 2009 Report Posted February 11, 2009 You knew I was gonna see this thread....Loco...LOL. hahahahaha... uhh, nooo i didnt... Quote
bansheeqc Posted February 11, 2009 Author Report Posted February 11, 2009 thank for the help guys...I probably check in the next mouth for find a good set setup for alky...but i'm not sure of the brand at this moment. Quote
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