Need help w/ timing.

[Flatnut]

Can someone help me understand where to adjust my timing for a 1982 GS 1100 shaft drive motor? I there is a shaft that spins between two metal points held my 3 screws but I had no luck moving them or removing them. It's just discouraging at this point. Motor back fires after synching carbs and switching jets. It was running rich now its lean. Mechanic said it's the timing but he couldn't figure out how to adjust it.

Please help.
Thanks!

[DanTheMan]

Your bike has electronic ignition. There is no timing adjustment. If the carbs were done properly, and you haven't adjusted the valves you need to do so. The only way timing could be off is if your timing chain jumped. Nobody messed with the automatic timing chain tensioner did they?

[chef1366]

The top middle screw has a mark under it. Make sure it's lined up with the mark above it.

[ptomkrvr]

The top middle screw has a mark under it. Make sure it's lined up with the mark above it.

Wow! Thanks. I am looking for dumb-down directions deliniating diagrams, dogma,documentation,discerning ....whew, the ignition system. I have an 83 1100 GL, and there is a wee little mark at the top of the backing plate that lines up with a minescule hash mark above it. Not exactly as you described on your bike, but I believe it serves the same purpose. I found some stuff on Mr Cliff's site By Mr.Matchless that hopefully will help walk me through it. I noticed some nasty harnesses under the coils. There is a white one that has a split in the plastic on the mail end that I am going to pry apart, clean , and try to doctor, among other things. I was concerned someome might have fooled around with the breaker plate, or whatever it is called. So thanks.

[Big T]

Looks like your safe there

However, ignore that "mechanic" in the future

Go thru your steps to GS redemption per BassCliff's list and ask us any questions you may have

[Nessism]

Dan is correct, the timing is not adjustable so something else is wrong with the bike.