Mitsubishi Evolution

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Piston sticks at the top of the butt (new engine).

The piston's altruism central the agent alcove is so tight, there is no allowance for the agent to accelerate to the top. The band-aid is to calefaction up the agent alcove with a beard dryer or calefaction gun. This will aggrandize the chamber, acceptance the agent to coast smoothly, while advancement acceptable compression.

Nitro engine dies as anon as you cull it off the amateur box

If your RC car is abundantly tuned, your botheration is apparently a apart clamp nut . The clamp nut is what connects the flywheel to the crankshaft. Pressing bottomward your RC car on the amateur box presses the clamp nut adjoin the fly wheel, creating the circuit that gets your nitro started. However, if your clamp nut is apart from abrasion and breach or impacts, it won't accept the able cobweb it needs to accumulate the car active already you accept removed your agent from the amateur box. To see if you accept a apart clamp nut, attending for the fly caster spinning on it's own. If it does, you charge to abolish the engine and bind or alter the clamp nut.

Engine stalls back car put on the ground.

A arctic clutch-bell address or burst clutch-retainer bounce is the best acceptable culprit. The engine stalls because the clamp is affianced back the engine is idling. back you put the car on the arena the engine croaks as it is not active fast abundant to move the car. The accommodation bounce or clamp alarm address are banishment the clamp to be affianced back it shouldn't be. You'll charge to audit both genitalia and adjustment or alter as required.
Car engine active backwards.

This is a accepted problem, with an accessible fix as it is consistently acquired by user errors. Make abiding you put your RC car on the amateur box with the actual acclimatization and that you put your affairs on the actual poles of the battery.
Your engine dies while abating up.
The best apparent account of this is a beat agent and/or butt sleeve. back the engine is cold, compression is able to get it started and run nicely. As it warms up the fit amid agent and sleeve loosens up as the sleeve expands. If the fit is bad enough, your ammunition can avenue the butt aloft the piston. As the engine gets warmer, this aftereffect gets worse until the engine eventually stalls. You'll charge to alter the engine or, if you like alive on this affectionate of thing, the agent and sleeve.
Your roto-start or pullstart nitro won't start.

Your one-way address may not be communicable on the crank shaft. This can appear if it is acutely bedraggled and you can apple-pie it , let it dry overnight, and re-install it.

Your engine acceleration increases while idling.

Highly apparent that the low acceleration aggravate on the engine is set too angular . A acceptable acknowledging analysis is to compression the ammunition band and time how continued the engine runs. If abundant beneath than bristles abnormal it's too lean, if abundant best than 5 seconds, it's too rich.