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