2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 45Get this manual

2008 Arctic Cat 400/500/650/700 ATV Service Manual, Page 45

Problem: Engine runs poorly at high speed Condition 12345678910High RPM "cut out" against RPM limiter Valve springs weak
ring(s)cylinder worn Valve seating poor Spark plug fouled Rocker armsshafts worn Spark plug gap incorrect Carburetor jetsfuel
injector obstructed Float level out of adjustment Air cleaner element obstructed Oil (in the engine) overfilledcontaminated
Intake manifold leaking air Cam chain worn 1234567891011121314Adjust clearance Replace springs Re-time valve gear Replaceservice
ringscylinder Repair seats Cleanreplace plug Replace armsshafts Adjust gapreplace plug Clean jetsreplace injector Adjust
float height Clean element Drain excess oilchange oil Tightenreplace manifold Replace cam chain Problem: Engine overheats
Condition 123456789101112Carbon deposit (piston crown) excessive Oil low Octane lowgasoline poor Oil pump defective Oil circuit
obstructed Gasoline level (in float chamber) too low Intake manifold leaking air Coolant level low Fan malfunctioning Fan
switch malfunctioning Thermostat stuckclosed Radiator hosescap damagedobstructed 123456789101112Clean piston Add oil Drainreplace