Hey guys,

I am still having problems with my truck !!!

It will not stay running .....I can do a few passes with it ...... it seems to do fine then whem I bring it in to check temps it will idle a little high for a few seconds .......then die.
When I bought the truck I added a filter from tank to high speed needle....Is it possible that there is an air leak????

Please let me know ...I am not having fun so far with my gst ......cant keep it running : (

Thanks
John

Chopz,

Of course its possible your filter has an air leak. If your fuel line is transparent you will see the air bubbles in the line, but if there are no bubbles then try richening up the LSN, because you say its reving when you slow down means the low speed side is running very lean..also if your high speed needle is set too lean then the low side will be starved into a lean condition.


Hope this helps good luck!!

http://www.rcuniverse.com/forum/m_5634095/tm.htm
he is having the same problems, click here and it will help you out.

Hey guys,

I do see air bubbles in the lines,does that mean that i have a leak??? Should I buy more fuel lines and just not run the filter? Are air bubles supposed to be there?

Thanks guys for all your help!!! I am new and dont want to burn anything up .

thanks John

could try getting new fuel line and running it without the filter and then see how it runs....
and then if you have enough fuel line make a piece with the filter in it as well, and switch back and forth and see which one works the best.

Are your throttle/brake linkages incorrectly set? Check carby gap with throttle in "neutral" position (idle) - hit brakes, if gap decreases then they are set wrong, adjust so braking does not affect the throttle/idle position.

Or is your clutch engaging at idle? If you have the brakes on when you pull it in then it may stall if the clutch is still trying to drive the truck forward.

How old is your filter? Tried cleaning it? I'm thinking that the pressure produced at idle may not be enought to keep a decent flow/ head of liquid to the carb, with a bit of throttle the pressure probably overcomes any restrictions. The fuel may be encountering a pressure drop or restriction on its path to the carby (ie the filter), try simply bypassing the filter first, you may need a different type/brand. Is it in the correct way? Fuel should flow around the outside of the filter, pass through it and out the centre, if its the other way round - fuel entering in the centre and flowing through to the outside switch it - this way provides minimal surface area to filter the coarse particles and will block quicker and capacity of filter will be less.

If the fuel hose was not sealing would it not leak fuel and be obvious? I imagine fuel line pressure will be positive all the way up to the needles in carby, then it may drop below atmospheric pressure (vacuum) and may be possible to suck air in but only AFTER the carby needle(s). Unless the filter was blocked. Take away the exhaust pressurisation system and air sucking into the fuel line may be possible.

Monaroman,

Do I adjust the settings on the transmitter if the gap is getting smaller or do adjust at some other point.Im at work I will check it when home!!

Thanks John

also how do I know if the clutch is engaging?????
thanks

Adjust the linkages themselves if this is the case. Clutch engagement - pick the truck up off the ground as it rolls by you slowly (before you break to a complete stop), or start it, let it warm up and pick it up, if the wheels spin the clutch is engaged or trying to engage at idle rpm, idle may be a bit too high. I'm thinking its probably not this but its easy to check. Once warm you can get the idle pretty low, may have to use some throttle trim to start it though.