what carb should I run
- Thread starter Curtis71
- Start date
The specs I listed are what a few of us have proven to work on 34/35mm keihins.
Must....#6 slide.
Cel needle for lower elevations, DHG for higher altitudes
45-50 pilots
145-155 mains
Will put most mild to semi wild builds in the ballpark
just type in cel keihin needle in ebay i got mine there for $9 with free shipping i would get bigger main jets then 155 if you ride in the winter with my mods listed on my profile i run with a 34 pj #6 slide 48 pilot cel on bottom clip and 172 main in 20 to 40 degree range iam probably gonna go down a main jet size or 2 when it gets warmer ... just to give you an example
Man just pricing all that stuff out I'd be looking at like $250+ just for the carb.....then another 125 for the air box....anyone got a money tree I can come pick from?
Man just pricing all that stuff out I'd be looking at like $250+ just for the carb.....then another 125 for the air box....anyone got a money tree I can come pick from?
Welcome to my problem! I got a 240 cylinder and +3 crank nearly given to me but I just ended up paying a grand in motor work, reeds, air box, carb, intake manifold and other various things.
expensive stuff....I'm over here like...am I eating Ramen noodles for the week or what!?!.... takin all my lunch money
Man just pricing all that stuff out I'd be looking at like $250+ just for the carb.....then another 125 for the air box....anyone got a money tree I can come pick from?
then just stick with the stock carb, as stated more than once in this thread, it will work well for your mods
Yea I'm going to at least try it, because it's all I have for now...im sure I'll be happy with it regardless if I upgrade or not....
AWK has expressed the best advice here in that it is not just a question of swapping a carb but also tuning it. If you don't know how to read plugs or what a slide or a pilot do, it might be a bit soon be swapping carbs. Building a KILLA motor is much more expensive than you think if you don't know these things.
Steve
Steve
Well don't make me sound incompetent, i know what a slide and pilot are, and I was a ch53 heli engine builder in the USMC.....personally I have never had any fourwheeler motor built until now, & I was merely just asking what carb would work best in the application that I am using it in, I've been jetting dirtbike for years, not a question if I know what I'm doing....think I'm sticking to stock for now...just here for advise that's all...
No one was trying to say you don't know what you are doing, just trying to make sure that you aren't going in blind without any kind of knowledge or experience in the matter. Building motors correctly takes a lot of time, knowledge, research, and patience and the carb can get frustrating at times when you have to take it out and apart 20 times to find the perfect jetting with all the components involved in the carb. Sounds like you just want to make the carb a future project that is done with time.
Thanks for your service btw!
Yea definitely not jumping in blind, it's just that I know carbs give me a headache, and they can be a pain in the rear...I just wanted some ballpark figures to get me in the range, where I wouldn't pull all my hair out....I've been there before....Its not pretty or fun....lol no harm no foul.....ohhh and it was a pleasure to serve my country
I've had 2 bbk blasters, one done by LRD over 20 years ago and the current one done by KOR. The LRD was just the bbk, porting and the pipe that went with the kit. I ran the stock carb on that motor and it ran great. I don't remember what the jetting was for that motor, been too long. My current one has a +3 crank in addition to everything the other one had. I run a 34 keihin on it donated by a atc 250r. Runs great. After reading through all the posts in this thread I'm curious as to how it would run with the carb tuning mentioned above.
I don't think you can go wrong either way. You can always start off with the stock and upgrade to larger later down the road since building these kinds of motors is exactly cheap.
I don't think you can go wrong either way. You can always start off with the stock and upgrade to larger later down the road since building these kinds of motors is exactly cheap.
No, didn't mean to make you sound incompetent.
Your question makes perfect sense now.
There is a common thread in most male pursuits to "go big or go home".
Bigger tires, bigger ports, bigger bores and of course bigger carbs.
These engines are so simple and easy to work on that you can try mods one at a time to see what really works.
This is what I would really suggest.
Steve
Your question makes perfect sense now.
There is a common thread in most male pursuits to "go big or go home".
Bigger tires, bigger ports, bigger bores and of course bigger carbs.
These engines are so simple and easy to work on that you can try mods one at a time to see what really works.
This is what I would really suggest.
Steve
No problem, everyone reads and takes things differently....no harm, no foul....I'm going to try out the stock first and see how it performs
