fx-1 carb settings

[infamy]

im putting a b-pipe (mod chamber) and a head (35cc domes) on my fx-1 and want to know what the correct carb settings would be. other the a 144 pump , the ski/motor is all stock. the factory pipe website says 145 main and 120 pilot and 95 gram spring. they recommend this setup for a stock motor. will this work with the head to or should it be different?
what are the stock settings for the fx-1? is the stock spring 95gm? is 120 a bit big for the pilot? the website recommends a 70 pilot for the superjet.
thanks

 

[marz831]

Compression does not affect jetting, so your head doesn't matter.

If I'm not mistaken, you should have a 95gm spring in there.

The 70 pilots for the SJ are for dual carb models, that's why they are so much smaller.

 

[Idok]

140
120
95
2.0 n/s

1 1/4 out on each

this will work for a 61x or for a 62T w/single carb conversion


(edit)
in MY experience

 

[special fx]

Factory Pipe usually gives you a 95g spring and the 120/145 jets with thier FX kit. I know of about 14 FXs running with this jetting and it's right on.

 

[infamy]

i bought my pipe through blowsion and didnt get any jets or springs. sux paying $700 for it and it doesnt even come with everything i need for the install.

 

[special fx]

That does suck!

 

[Idok]

you didnt buy a pipe kit, you bought a pipe!

 

[LBE]

Why didn't you get the FX1 chamber?
What factory pipe recomends is right on.

 

[marz831]

What carb were you running this with?

140
120
95
2.0 n/s

1 1/4 out on each

this will work for a 61x or for a 62T w/single carb conversion


(edit)
in MY experience

 

[Flash-FX]

How does that "mod" pipe fit in the FX-1? I was thinking that it might be a little better for low end to spin that 144. :dunno:

 

[special fx]

How does that "mod" pipe fit in the FX-1? I was thinking that it might be a little better for low end to spin that 144. :dunno:

Yes.....How does it fit.....pics please :reporter:

 

[infamy]

i didnt get the fx-1 chamber because i couldnt. no one had any. i called a bunch of different companies to see if anyone had one and nobody did. i have been on factory pipes and blowsions waiting list since last year and got sick of waiting so i just bought the superjet pipe with mod chamber. it fits but it is really snug. its like 1/8 inch away from the tank and the side hull. probably has 1/4 inch clearance from the motor mount. i havent dented it in yet. im gonna run it for a little bit to find out exactly where it rubs. i took some pics and will post them soon.
i called about eight shops and went to 3 of them today looking for the right jets. nobody had both of them in stock. i had to buy the 145 main at one shop and the 120 pilot at another shop.

 

[infamy]

heres some pics

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[Flash-FX]

Wow! That's one clean FX! Looks like it fits pretty good. Sweet!

 

[infamy]

it fits fine, but has very little clearance. will the pipe melt the gas tank if they are touching?