Troubleshooting Your Nitro Engine

Problem: engine does not startSolution

Air flow is restrictedClean air filter Fuel does not reach the carburetorClean fuel filter

Engine and / or fuel system is leaking airInspect the fuel tank, line and engine for poor seals

Improperly adjusted fuel mixture needlesReset needles to factory recommended settings

The glow plug does not workReplace the glow plug and / or change the glow plug filter

Problem: the engine starts and then chokesSolution

Idle speed is set too lowAdjust the idle screw clockwise

Low speed needle is set to richLean mixing at low speed

The low speed needle is adjusted to leanEnrich the needle at low speed

The clutch is bindingDisassemble the clutch and solve the problem

The glow plug is looseTighten the glow plug

The glow plug is dirtyReplace the glow plug

Piston and liner are wornSeal the engine with a high temperature sealant

Damaged bearings in the clutch housingClean or replace the bearings

Problem: Engine coughs when you put on full throttleSolution

Low speed needle is set to richLean mixing at low speed

Clutch engages too quicklyReplace clutch spring / pads

The glow plug is too coldInstall a warmer glow plug

Problem: Engine does not idle properlySolution

Engine may leak airSeal Motor with silicone

The low speed needle is adjusted to leanEnrich the needle at low speed

Problem: engine coughs or chokes at high speedSolution

The high speed needle is set to leanEnrich the mixture at high speed

Fuel flow is limitedClean fuel filter

Piston and liner are wornReplace piston and sleeve