uman1030 Posted February 11, 2014 Report Posted February 11, 2014 trying to order some odds and ends parts for my Fast 421 serval, hasnt arrived yet but i want to be prepared to just put everything together and start tuning. looking over my 35mm pwk airstriker carbs they have 48 pilots 152 mains and CGL needles that were on the 2nd clip. i thought these came off a 421 cub but i cant remember now. I hear most people refer to the CEL or DEK needles any advice on wich ones i should start with or will these be easily tunable as well. plan on buying a range of jets up and down from whats in it so i have it all on hand to fine tune. Also any one know what size the overflow hoses are and also the fuel line and where i can purchase it. Will i need a dual pingle to feed these? what about the gas cap should i hog it out to vent better. also the part number S65A2 on the carb indicates it is a 35mm A/S according to http://www.sudco.com/pwk.html but when measuring the inside bore diameter of the engine side of carb it measures nearly 36mm is that normal or have they been bored that large Quote
sleeper06 Posted February 11, 2014 Report Posted February 11, 2014 Cgl is same taper and diameter cel but is a diffrent length if you have trouble getting her tuned on clip position might need cel dek is richer needle and my choice for nicely ported stockers with 33s Quote
uman1030 Posted February 11, 2014 Author Report Posted February 11, 2014 Thanks sleeper, I may just buy the CEL's when i buy a bunch of jets. After doing some research it looks like the overflow tubes from Keihin are 3mm I.D. i found some on ebay for cheap also bought 1/4(6mm) tubing for the fuel line and a inline filter. ended up being about $34 with shipping but its enough to fully do both bikes with some left over. Could some one measure the engine side bore I.D. of their 35mm pwk and tell me what it is. I assumed it would be 35mm or real cose but mine appears to be 35.97mm yet ive verified they are definitely 35mm pwks by part number. Quote
possum Posted February 12, 2014 Report Posted February 12, 2014 having a bigger bore is normal. 38s are like 38.6 usually. on paper they are 35s measured they are really 36. no big deal Quote
Abe Posted February 23, 2014 Report Posted February 23, 2014 May want some smaller pilots , far as I know the air strikers use alot smaller pilot versus a standard pwk Quote
VoOK Posted February 24, 2014 Report Posted February 24, 2014 May want some smaller pilots , far as I know the air strikers use alot smaller pilot versus a standard pwk Just curious, is this due to the fins on the bottom portion of the carb bell directing the air? 1 Quote
sprinklerman Posted February 24, 2014 Report Posted February 24, 2014 Just curious, is this due to the fins on the bottom portion of the carb bell directing the air?Partially. They also run a different slide cut away. Sent from a van down by the river Quote
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