2.5 motor wont idle/start!!!

[freerida69a]

My friend brought me out his jato 2.5(i know this is the wrong section but no once checks the other section) and i ran it the first day and was tuneing it and jacked up the idle so it would go like 5mph at idle so it wouldnt die, then i ran it for the night and put it away. i couldnt get it to start within the next 4 days. I'm going to shorten things up here: pulled the engine apart, cleaned everything, carb back to factory settings, rtv gasket on backplate and carb and pinch bolt, put it all back together and it started right up the next day. then after trying to tune it to be able to idle with out dieing it would make that sound of the ez start spining but not spinning the motor, i figured it out and it seams that fule seeps thru onto the shaft and slips the one way bearing, evertime i clean it it will turn the motor over, so whats wrong? also why does it not idle without having the wheels in the air!?

 

[AxialLST]

The idle with the wheels in the air sounds like a clutch problem. Do the wheels spin when you have it idleing off the ground? If so this is probobly your problem, as the clutch sticking is causing the motor to die.

-AxialLST

 

[freerida69a]

I'm new to nitro's I'm good with motor/carb but not with clutches, which one? the clutch shoes in the clutch bell? or which one? slipper?

 

[AxialLST]

Yes the clutch shoes in the bell, they could be sticking. Turn the engine over, if the clutch bell turns with it, its sticking. Best way to be sure though is to remove the engine and spin the clutch bell, it should spin easily and not hang up at all. Could also be a bad bearing in the clutch bell thats hanging things up. I would remove the clutch bell and check things out, make sure the springs and shoes are good, make sure the bearings havn't come apart either, this will be easy to see as the bearing surface that goes around the crank shaft normally stays there and the rest falls apart when you pull the clutch bell off.

-AxialLST

 

[freerida69a]

ok that makes sense, would you know why the started just spins when i try and start it? wheevr i take the ez start assembly off and wipe down the shaft(it usually has some type of film on it) it will start. how could gas be getting in?

 

[AxialLST]

Could be the one way bearing going bad, and/or a leaky backplate behind the roto-start. I would replace the one way bearing and go from there, they are cheaper than the whole assembly.

-AxialLST

 

[freerida69a]

thank you so much for your help, ill keep ya posted!