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CONTENTS	Symptom	Probable Cause	Solution	FORUM CONTENTS
	Will not start	Bad Glow plug	Replace glow plug
		Igniter battery low	Charge or replace battery
		Fuel mixture way out	Gently close mixture needle reset at manufacturers recommendation
		Bad fuel	Flush tank and replace fuel
		Low or no compression	Tighten all bolts and screws and glow plug Check glow plug gasket Place a few drops of oil around plug and slowly rotate prop counter clockwise watching for air bubbles around plug.  If bubbles detected replace glow plug gasket
		Insufficient priming	Open throttle fully and place finger over carburetor  or exhaust and rotate engine counter clockwise.   You should be able to see fuel in the fuel inlet line.
		Engine flooded	Remove glow plug and rotate engine several times.
	Engine Start and Quits	Engine Starts but slows down and stops	Mixture too rich  Close high-speed needle valve 1/2 turn and start again.  Repeat until engine is running smoothly.
		Engine Starts speeds up and then quits	Mixture too lean  Open high-speed needle valve 1/2 turn and start again.  Repeat  until engine is running smoothly.
		Fuel tank problem kinked fuel lines, clunk hole too small, junk in tank etc	Get another tank that you know is good and  tape it to the side of the fuselage  Disconnect the old tank and connect up the temporary tank.  Start the engine and see if  your problem goes away.
	Quits when igniter removed	Glow plug bad	Replace Plug
		Low end Fuel mixture to rich	Readjust mixture
		Gold plug to cold	Try hotter plug
	Quits on throttle up	low end mixture to lean	Readjust mixture
	Sluggish acceleration	low end mixture to rich	Readjust  mixture
	Detonates (makes knocking sound)	Too much nitro	Try fuel with less nitro
		Compression to high	Install additional head gasket
		Over propped	Drop one load factor down
		Glow plug to hot	Install cooler plug
		High speed mixture to lean	Re-adjust Hi speed needle
	Erratic RPM	Bad Fuel	Flush tank and replace fuel
		Air Leaks	Check fuel line between tank and carburetor tighten all screws and bolts between crankcase and carburetor
	Power loss	Worn piston/cylinder	Overhaul or replace
		Worn or damaged bearings	Inspect and replace bearings as needed  replace engine
	Increased vibration	Worn or rusty bearings	Inspect, clean or replace as needed
		Loose mounting bolts or engine mount to firewall	Check mounting screws and tighten as needed
	Cannot adjust carb to  run rich enough	Fuel tubing to small	Replace tubing with larger size
		Obstruction in spray bar, tank or line.	clean spray bar by flushing with alcohol
		Obstruction in vent line	inspect, clean as needed