440 kit strving for fuel

[ridered666]

just put a 440 kit to see if it ran i cranked for just a second w/ the stock jets in it of course it ran lean. what jets are yall runnin and needles or just give me the stock size and ill go from there
thanks

[drzoo2]

While I know I'm not answering your question directly, the single biggest mod on a big bore is a larger carb. Most guys go with an 39mm FCR off a stock R. We over at central are working on using an HS40 Mikuni. These are a lot cheaper and still have an accelerator pump. Plus it uses stock jets and choke. Just a though. You can find them at swap meets. They were originally off stock Harley pans. I going this weekend and going to try to get my hands on a few more.

z

[rockman]

Originally posted by drzoo2
While I know I'm not answering your question directly, the single biggest mod on a big bore is a larger carb. Most guys go with an 39mm FCR off a stock R. We over at central are working on using an HS40 Mikuni. These are a lot cheaper and still have an accelerator pump. Plus it uses stock jets and choke. Just a though. You can find them at swap meets. They were originally off stock Harley pans. I going this weekend and going to try to get my hands on a few more.

z Let me know if you come across more than one. I was just getting ready to go with the 39 fcr. Haven't been on central for a while but the mikuni sounds like a good alternative. Let me know how it turns out!

[drzoo2]

Originally posted by rockman
Let me know if you come across more than one. I was just getting ready to go with the 39 fcr. Haven't been on central for a while but the mikuni sounds like a good alternative. Let me know how it turns out!

What happend over there? Still working out the bugs. I know of one guy running one and another I sent one to that will be putting it on. I have a stock bore myself and will be trying it out in a littl while. Let you know what I found.

z

[ridered666]

this aint my bike its a friend of mine, and he dont got alot to be sinking in to this turd thats why i just wanted to put some bigger jets in it, that idea does sound great but a little too costly for him maybe, but i dunno how much it'd run. but thanks anyway

[ZSNOW]

try goin like 1 up from stock...sorry i don't know what stock is but if its a athena u could try 1 up from stock or a 450r carb

[z400roosteR]

First off does he have exhaust and intake?
If so, grab some mikuni small round main jets size 155, 157.5, and 160.5 and see how those work for you!