new top end

[gwatt5]

has 280 jet new plug clean carb oil injector working it doesnt stay idleing what could be the problem. the tip of my silencer is crushed in alittle bit you might be able to see it in the vid could it not be breathing the right way?

 

[Blaaster]

Did you set the float level?

Did you do a leak down test prior to starting?

It sounds lean to me.

 

[wwholden]

Did you set the float level?

Did you do a leak down test prior to starting?

It sounds lean to me.

Wow man you can actually tell if its lean by the sound? Please explain bro!

 

[Blaaster]

It sounded like a little hesitation when the throttle was stabbed, which to me points to a lean mix.

 

[wwholden]

Couldn't that also be if it was running fat? Would that be the pilot, needle, or main jet that is running lean to cause that first hesitation?

 

[gwatt5]

It only stays on when the gas is Being touched

 

[Blaaster]

It only stays on when the gas is Being touched

I have had problems with the throttle switch cutting off the motor if the TORS idle is out of sync.

You may need to adjust the idle screw so that the slide gets lifted up a little to sustain idle.

 

[Blaaster]

Couldn't that also be if it was running fat? Would that be the pilot, needle, or main jet that is running lean to cause that first hesitation?

The prob would lie firstly with the pilot and/or air screw.

If it was running fat I feel that it might stutter before it hesitated, from what I could hear, it sounded like an abrupt hesitation.

The reason why I wont stay running may be the idle screw not adjusted up enough.

 

[BGATZ]

I was the one on the quad in the vid. There was no hesitation in the throttle. Response was great. Problem is that was first time it was started after rebuild. We havent adjusted the idol or fuel mixture screw yet. And I'm pretty sure the toes is removed. Injector is working. Exhaust has smoke coming out with blue in it

 

[BGATZ]

Also it was backfiring. Don't know why. Believe like I said in vid. Felt like it is getting to much air. And after watching again. Motor has little hesitation but throttle does not

 

[Blaaster]

If you have just rebuilt the motor, did you do a leak down test before you started it?

 

[gwatt5]

Nope just started it

 

[Blaaster]

It is recommended that any fresh rebuilds have a leakdown test performed, to make sure everything is air tight.

A small air leak can cause serious problems.