Bolt Size Chart For GX160 & GX200

Bolts	Description
	Intake bolts. M6 x 20 1.00 pitch Used for bolting a carb adaptor to the cylinder head.
	Exhaust bolts. M8 x 25 1.25 pitch Used for bolting a header to the engine.
	Output shaft bolt. 5/16"-24 x 3/4" fine thread Used to secure the clutch on the crank.
	Chain guard bolts. 5/16"-24 x 3/4" fine thread Used to bolt a chain guard to the engine. We have found that some engines use M8 x 20 1.25 pitch bolts for the chain guard.