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Discussion Starter · #1 ·
Hey I have a few questions for anyone who may have answers. I have 1976 440 T'NT I am fixing up(it was given to me) and I don't have much experience with sleds.

1.)There are 2 line the come down of the top of my carb, I think that they should connect and then run to the gas tank return? I have a Mikuni carb.

2.)I bought new spark plug wires as there were none on the machine when I got it. My question is when I plug the wires into the coils do I need to strip them at all or just push them in?

3.)I don't have an air silencer for the machine and I want to just by one of those cone filters but they say I need to re-jet. I will be running in temperatures from about -5 C to -30 C what jet should I use.

4.)It is still around 6C here, is it bad if I start the engine and what not, do I risk a too lean condition or would it be too rich?

5.)Last, when test running the engine, is it bad to do so with out a drive belt on?

Any help would be greatly appreciated. Thank you to anyone who can help me out!


482 Posts
NO, DONT run it without the belt, you'll over rev it and chance blowing the motor.
The belt helps control the RPM's, besides the drive thats what a clutch is for.

now with that out of the way.

1 - one is for gas feed from the fuel pump (then to tank)
and the other is an overflow for the floats.

2- just make sure you have a square straight end and screw
( most have a threaded tap) or push it in. no wire stripping.

3- if you have the stock exhaust use the cone (but try to get a bigger one at least 4'' round, not one of the small ones,
if you notice a performance differance just go UP 1 size on
the jet.
your lucky you have a Mikuni carb and not one of those Damn

4 - its alright to run it to check the work you did or up grades, just dont run it too long. even though it has a fan it still needs cold temps to run.

5 - Like I said before, DONT run without a belt

Hope this helps.
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