gs1000 tappet adjustment

[dbd32]

Looking for a good clear step by step illustrated guide of adjusting shims for tappet clearance on my GS1000 1980 Haynes manual is bad on photos

[allojohn]

Download the factory manual here.

https://gsarchive.bwringer.com/

HTH

[Rich82GS750TZ]

See BikeCliffs Website, link in my signature. Right column under the User manuals. Look for Valve Adjustment(8 valve). And the Zip tie supplement, only if you don’t have the special valve depression tool.

If you’d like an Excel spreadsheet that’s helpful to figure out the shim swapping and replacement, let me know, I’ll give you the link.

[Nessism]

This is a simplified version of the factory Suzuki procedure.

First, remove the ignition cover. When rotating the engine, use a 17mm wrench, and only rotate clockwise.

The cylinders are numbered left to right, 1 to 4, as you are sitting on the bike, looking down at the engine.

Rotate the engine until the # 1 Exhaust lobe is pointing forward, parallel to the gasket surface (position B), then adjust 1E and 2E.
Rotate the engine until the # 4 Exhaust lobe is pointing forward, parallel to the gasket surface (position B), then adjust 4E and 3E.

Rotate the engine until the # 1 Intake lobe is 90 degrees to the gasket surface (position A), then adjust 1I and 2I.
Rotate the engine until the # 4 Intake lobe is 90 degrees to the gasket surface (position A), then adjust 4I and 3I.

Suzuki calls for .03-.08mm of valve clearance, but you can go higher. I recommend .05-.12mm. The clearances decrease with mileage, and more clearance won't hurt anything, and will allow you to wait longer before you need to change shims.

GS Valves.png