How to Adjust the Valves on a Suzuki GS Motorcycle eHow UK

4 Апр 2015 | Author: | Комментарии к записи How to Adjust the Valves on a Suzuki GS Motorcycle eHow UK отключены
Suzuki GS

How to Adjust the Valves on a Suzuki GS

Written by chris gilliland


Adjusting the valve on a GS motorcycle is a two-step process involves checking the amount of — or clearance — the valve tappets and the camshafts operate them. Once the between the camshaft’s lobes and the are determined, adjustments are made by a metal shim that on top of the tappet with a shim of a thickness. Some parts of the will need to be disassembled for task.


Lift the motorcycle its centre stand. Remove its if equipped, using a four-mm wrench. Unlock and remove the seat, using the ignition Unscrew the mounting bolt at the gas base, near the seat’s using a 10-mm socket and

Turn the gas tank’s valve to the position, and pull the fuel away from the valve. the gas tank off of the motorcycle’s frame.

the bolts from the round cover on the right side of the with a Phillips screwdriver or a Allen wrench. Pull the away to access the motor’s Place a 19-mm wrench the nut at the end of the crankshaft.

Unscrew the tachometer cable the motor’s cylinder head if present, using a pair of pliers. Unscrew the cylinder bolts with a 10-mm Lift the cylinder head off of the motor to access the valves’ and camshafts.

The GS motors are equipped two camshafts; the camshaft at the rear of the head controls the intake the forward camshaft controls the valves.

Rotate the crankshaft with a wrench to turn the Stop when the exhaust round-tipped cams on the right of the motor are pointed at a 90-degree away from the top of the cylinder Measure the clearance between exhaust cams and their with a feeler gauge.

Suzuki specifies a clearance of 0.001 to 0.003 of an inch of between the cam and the top of the tappet.

Adjust the valve’s clearance by replacing the shim with a new shim is slightly larger or smaller the original shim, according to the taken in the previous step. the exhaust valve’s tappet from the cam, then the shim off of the valve with Coat the top and bottom of the new shim 10W40 motor oil, slide the shim into over the tappet.

Skip this step if the of the first two exhaust valves are 0.001 to 0.003 of an inch.

the crankshaft 180-degrees counterclockwise a wrench so that the intake cams are away from the valve’s shims on the right of the motor. Measure the valves’ with a feeler gauge and the shims as needed.

Rotate the 180-degrees counterclockwise with a so that the exhaust camshaft’s are away from the exhaust shims on the left side of the Measure the valves’ clearance a feeler gauge, and replace the as needed. Repeat this to check and adjust the remaining valves’ clearance.

Reinstall the cylinder head onto the motor, and tighten its with a 10-mm socket. the right crankcase cover and its bolts with a four-mm wrench. Screw the tachometer into the cylinder head and tighten it by hand. Reinstall the gas onto the motorcycle and reconnect the line to the carburettor.

Reattach the seat and reinstall any removed earlier. Use a four-mm wrench to tighten the fairing’s

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