Purchased a USED Nitro r/c when it is started the wheels start turning

[mijo]

All,

I Traded a electric for a Nitro HPI and when i start it the wheels are turning so i think i will need to go through the tuning process but what is the quick fix so i can at least run it where it isn't trying to go so i can start tuning it

 

[solly69]

adjust the idal screw
there should be a 1mm gap in the carb when u take the air filter off and look down in there

 

[darnoced]

Sounds like the clutch spring might be broken..that is if the idle is not set too high.

 

[samrsnow]

Turn the throttle trim to 0. Then start the truck off the ground and turn the idle down until the wheels stop turning.

And what truck do you have? A savage i assuming?

 

[mijo]

It's a HPI Rush

 

[Amoeba]

Sounds like the clutch spring might be broken..that is if the idle is not set too high.

Yeah, after adjusting your idle to where it needs to be, if the wheels are still turning check your clutch springs. They may be worn out or broken.

I had a similar problem on a truggy. I got it tuned to where it needed to be but the wheels would still spin a bit. Turns out the stock clutch springs were very weak and the shoes would grab too early. Changing over to some nice aluminum shoes & racing springs made a huge difference.

 

[LBSinGTX]

Also check your CB bearings if all the above look good.

 

[mijo]

i took off the clutch housing and it does appear to be a spring problem. thanks for the info