1985 Suzuki GS450 Top End Rebuild - Part III 

Good luck! Once you get into it you'll find it pretty simple

Quince decir de los pulsores

@@ptstransky Yes, it was no problem.

As long as the #2 cyl is TDC, you should be ok. When you bolt the cam down, it will push the valve down. Just double check everything.

@@ptstransky thanks...I did that. I have had the valves checked on a compression tester and put everything back together but still not getting very much compression or power out of #1 could be the carb??

Unless you're leaking fuel into the crankcase, I would begin looking at the carb. Make sure no air leaks on the boots etc.. good luck!

@@ptstransky ok gracias comenzare a checar los carburadores saludos

Hi Richard.. Facing forward, like while sitting on the bike will provide your 'left and right'. The #1 cyl is the one on your left. Good luck

Ok gracia tengo otro problema abajo en los pulsores aparece R T y LT si tome coloco al frente de las bobinas pulsoras cual iría a mi mano desecha LT como en el vídeo?????

Si quiere le pasó imágenes por WhatsApp 04241050737

Hi Kerry.. Do you have the cam chain tensioner off?

No.. once it is set, it's self adjusting. You shouldn't have to mess w it. Good luck. Paul

It's mostly the same. Im nearly done rebuilding my 850GL right now, there's a middle sprocket that sort of helps keeps the cam chain on the right spots. It needs to come off and go back on before rotating the engine to ensure timing sticks. The cam brackets have four screws, I'm finding it best to do the middle X pattern as the lead. There's a lower plastic chain guide as well that's sort of a pain in the ass when reassembling, kinda just gets in the way and needs about the same amount of attention as the chain itself, it doesn't need to come out. Just go slow, I've watched these videos among a few others as a guide. Everything works out. Cams are timed and sticking to it. Valve clearance is well. Wish me luck on the compression test!

The carbs are the same on 83-87 GS450L's. The 83 GS 450TX is also a match. E-bay is an obvious source. Its a timing thing when they are listed. They will pop up. The wiring harness is very simple on that bike. If you are rebuilding the bike, pull it off and go over it. On some bikes I have taken the wiring diagram, blown it up to poster size for a few bucks to make it easier to trace wires. If you're just tracking problems, be patient, get a multimeter and start hunting. Loose grounds, cracked insulation leads to corrosion, cracked connectors etc. Lot's of sources in the web for that bike.. members.dslextreme.com/users/bikecliff/ and www.thegsresources.com/ are two to get you started..

Thank you!

Thank you! Good luck w your build. I love putzing on the old bikes..

Paul Stransky Thanks a ton! I’m a real sucker for old UJM’s and I got to ride it for a summer before she decided to be a paperweight I’m the garage, but for an old bike it’s well Balanced and handled well and I’ve had more fun than expected tearing her apart and learning what makes it all tick, but I’m excited to ride again more than anything

Hey Thunder, I building a GS450 top end rebuild playlist on my channel as well so be sure to check it out of you can't find the information you are after!

Brick House Builds I’ll be sure to check it out, but I actually managed to get the engine back together and remounted on the bike but now I’m not getting any spark (but everything else seems to be working) so I guess It’s one thing then another

Dave Walker that's a teardown to split the case.. Remove the engine, carbs, top end, sprocket, clutch, etc. Get a Clymer manual. It takes you through step by step. Unless you need to get to the trans or crank, really no need.

I had an 85 550L that I rebuilt as well. Much the same. Actually a bit easier in that the valve adjustment is done w adjustable rockers. No screwing with shims. 4 valves per cylinder. Very similar design.

Hi Dimitar.. Once mounted the piston floats or moves. The spring keeps tension on the piston or push rod against the cam chain. When the engine is running you will see movement on the 'wheel' on the right side.

Thanks , Paul ! Mine is GSX1100-1980 . I'ts the same tensioner . What exactly is this "wheel" about ? Does it fix the extent of the movement of the piston ? Can I strech the cam chain only with the "wheel" without demounting the whole tensioner out ?

@@buchkazloko you should be able to. Turn it to retract the pushrod, then use the set screw on the left hand side to tighten and hold it in retracted.

So ,1. I untie the left side screw2. Turn the right side wheel counterclockwise to the end 3. Tie and fix the left side screw Notning else ?

@@buchkazloko in theory.. TBT, I never messed with the cam chain without taking the tensioner all the way off. Easy enough to try. If you get slack, it works. If not, take it off.