Got it started, but only at full throttle

[Guantanamo Joe]

Ok, so today I vented the Gas cap... so I have a pretty yellow line running through my cage.


I FINALLY got the engine to start after dumping out all the excess gas from inside the engine. However, it will only start at half to full throttle and will not idle AT ALL... as soon as I let the trigger go, she stops firing (in machine guns this is a desireable trait, but not on my truck).


The idle screw is turned in plenty, and we are still at factory needle settings...


Any suggestions?

 

[alfred e numan]

this a new motor? sounds like bad gas- or a messed up carb- or a leaking jug-intake- crank seal- these modern toys can be a pita @ times. yea, this does noy really narrow down the trouble- just check these areas out with @ fine tooth comb---

 

[Guantanamo Joe]

brand new truck...

 

[GTS 666]

I would check those factory needle settings as well mate they could be wrong.

 

[Deluge]

Have you tried leaning out the low speed needle a bit? Give it about an 8th of a turn, clock wise. Sounds like you're running too rich.

 

[Deluge]

I would check those factory needle settings as well mate they could be wrong.

What he said...

Try these...

HSN - 1 1/2 turns

LSN - 1 1/4 turns

 

[Guantanamo Joe]

I have put the needles at those settings already and have leaned the low needle 1/8th of a turn at a time for almost a full turn- seems like it's not making any kind of difference at all.

 

[Guest]

Get it running on a stand. Even if it means full throttle. You might need to clear it out. Are you blowing smoke when it is running for the short bit?

 

[Guest]

Another thing to double check.

I know you were working on the gear plate. Check to see that the clutch is not dragging. The clutch bell could spin freely around the clutch shoes. Of course you will have to unhook the belt or gears. If the clutch is even partially engaged it will be impossible to get started and keep running at idle.

Just a thought.....

 

[Guantanamo Joe]

not really... and after a little run on the stand the plug looks to be almost clean and dry...

 

[Guantanamo Joe]

ooh... good call on that... the stand I built as for the XT and dunerunner, their wheels don't touch the stand... the MT wheels do so that could be something...

 

[Guantanamo Joe]

and I did do some clutch work the other night installing the 8k...

 

[Guest]

Double check it spins freely.

 

[Guantanamo Joe]

I will when I get home... thanks... back at work again so now I have to sit here and wonder if this is the easy fix I am hoping for... ha ha ha

 

[Guantanamo Joe]

If the clutch is dragging, what can be done about it? Should I just put the old clutch back in or can it be sanded down a little?

 

[Guest]

It should fit with out any modification. You just want to make sure everything is installed correctly and you didn't look over something. It happens to the best of us.

Clutch shoe bolts.

Bearing in and inserted all the way.

All the gear plate bolts and spacers in and tight.

You are looking for anything that could misalign the clutch shoes or clutch bell.

If its all good then it's back to the carb.

 

[Guantanamo Joe]

damn the carb... I hope it is the clutch/bell... that gives me something I know how to tinker with - Fuel and air are not my specialties... nuts and bolts I can wrench all day

 

[Guest]

Good luck! Hope you get her resolved sooner than later reguardless of the cause.

 

[Guantanamo Joe]

Me too... though I am not going to drive her much regardless until my killer bee and new pipe show up... though I am sad because I have to cut my body once the pipe gets in... I worked so hard on that quarter panel... ha ha ha

 

[Guest]

I know how you feel.



I can't get enough of these. LOL Its all Deluge's fault. LOL