Outer Limits 4x4 Board

Been reading the post in the bible about fast idle issues.....

Mine appears to not have this problem, though it idles about 1100 RPM and only goes as low as about 1000.

Is this too high? when i pull the clutch out to take off without throttle, the front end lifts up a touch.

88 swb GQ on duel fuel, runs mostly gas.

How do i lower the idle?

What is normal TB42 on gas idle sposed to be??

cheers

screwy

About 600 to 800.

There is a throttle stop screw. Check on RH side of carby where the choke idle up is (plastic cam thing from memory). They get stuck. Spray with CRC and make sure its not holding throttle up when HOT.

Bazzle

the derro who owned it before u prolly screwed up the idle cause he couldn't get it to idle right with out stalling hahaha

screw idle back down and get it tuned by some one who knows how

yeh checked this morning....
wat 1100 rpm idle again

ill fix it tomorrow, day off without the folks

Ok,

ive wound it down but while i was winding it down it stayed up...
until i punched the throttle and it went down to 300 too far, so bumped it up to about 650 like it says in the manuel....

it ends up idling at 750 in petrol and 650 on gas....

BUT, when i first start the rig and shes cooled off it idles at about 1100........ It doesnt slowly drop at all either.....
but after a certain amount of time if i punch the throttle it goes back down to 650 ish...

is this the auto choke? or fasst idle problem?

screwy

Mine does the same it will hover around 1100 revs until i give the throttle a tap then it will drop to about 600, so i'd say it is the autochoke.....

heres hoping anyway as i recently had the carby overhauled.....

I had two petrols that did the same thing all you need to do is lean your choke off a bit so you will need to spin the choke housing clockwise but how much depends on the person driving the vehicle. so if you want to try this just loosen the three screws on the housing and spin it clockwise a little to start with and see where its ideling.

flexy trol wrote:I had two petrols that did the same thing all you need to do is lean your choke off a bit so you will need to spin the choke housing clockwise but how much depends on the person driving the vehicle. so if you want to try this just loosen the three screws on the housing and spin it clockwise a little to start with and see where its ideling.

started her again this morning.... being warm this morning it started ( i punch the throttle to start it ) and it went to 800 rpm, but then i drove around the corner and it went back up to 1100....
weird.... the butterflys etc arent sticking ( i checked ) so fast idling......
how to fix?

not quite sure wat u mean by adjusting the choke flexy trol.... where are these screws located?

screwy

she still idles all over the place.... any thoughts???
it only stays at a constant idle when i wind it up to 1100....

one minute its 600, then i rev her up and it holds 1000.....
fast idle... how to fix?

screwy

Theres a small camm that has a rod on it att to choke and throttle stop. This gets stuck . Look under RH side of carby. It need LUBE.

Bazzle

bazzle wrote:Theres a small camm that has a rod on it att to choke and throttle stop. This gets stuck . Look under RH side of carby. It need LUBE.

Bazzle

will have a squiz... so if im looking in the engine bay from the front of the vehicle, its on the right hand side next to the motor?
or is it down near the accelerator cable... as thats the only cable i can see....
will have another look.

screwy

RH side is side nearest RH inner guard. Its at the rear on that side of carby.

IE looking from the front down ontop of carby its at 10 o clock.

Bazzle

bazzle wrote:RH side is side nearest RH inner guard. Its at the rear on that side of carby.

IE looking from the front down ontop of carby its at 10 o clock.

Bazzle

thanks, will look tomorrow.

cheers

Had 3 GQ duel fuellers, all had the same problem.
The white plastic auto choke cam causes this problem(as mentioned above).i could never fix this item properly.
My solution was to totally remove the plastic cam and wire the choke butterfly fully opened.
running on mainly gas this is not a problem, only cold starts on petrol takes a while to warm up to idel.

Cheers Grant.

thanks for the info, still havnt had a chance to have a squiz, maybe tomorrow....
im sure ill have more questions

cheers

ive lubed the white cam....
it does appear to be getting stuck, at least when i play with it in the engine bay, though even with luve it doesnt really help it.....

wat could be a fix for this problem??

screwy

See Gueeys post above.
Start on gas and choke not needed.

Bazzle