20 Most Recent 1980 Suzuki GS 750 L Questions & Answers

Yes it will work you might have a different design which I doubt but the function will be the same

As suggested, check the voltage with the engine running accross the battery. If its below 14 volts you have an issue with the stator windings/regulator/rectifier/wiring.
Do the cheapest thing first and clean up all electrical connections, esp the earths.
A manual will tell you how to test the charging system, but the Suzuki GS range has always had charging issues.
The simplist method is to fit the combined reg/rectifier unit from a Honda CB250/400 Superdream.
Always keep your engine oil topped to the max mark, as this cools the stator.
Dont leave this, it is not unknown for the entire system to fail including the CDI if left unchecked.

liquid fuel getting in cycliners. need carbs cleaned float sticking will fill engine with gas check oil level and air box

Do you know where it is located? Have you had issues with it, as in dead and let to freeze, acid spilled out onto the bike from being frozen or overcharged etc? If so mix up some baking soda and water and pour over connections and frame then wash off bike before swapping battery. Take off negative first and put back on last, just like with a car battery. If wet cell, fill to proper level and charge first on 1A or smaller charger for a day... If GSM or Gel, install and ride.

5th gear sluggish i run into alot of this sluggish at different rpm or speeds and almost always its in the synchrenation of the carbs what happens is one of the carbs is bacically hesitating clean and synch the carbs alot of techs overlook this this is a huge major factor in performance and immediate rite now throttle and engine responce

how long you letting it idle and not moving down the road ? its air cooled that needs movement to cool the engine ! another problem i once had was that after i polished the side casings to make it look good in a chopper style bike it overheated quicker than before , just a thought ! is yours std ? any more info you got ??

sounds like the clutch push rod is bent and the seal has more pressure on one side so leaking ! pull rod out and see if it can be straightened , if not then replace it and the seal !

This is a bit vague.. If engine is running an you select a gear but nothing.. I would look to the drive between the crank and gearbox.. this goes via the clutch and could be the issue.. This sounds dumb but check the obvious.. start at the back wheel and work back.. check chain and front sprocket.. then ensure you can select gears and then clutch and primary drive..

Have you looked inside the clutch case ? check the clutch is releasing , check the keyway on the crank cog hasnt snapped that drives the clutch etc !

Any modifications to the air box will cause mixture changes. You may need to re jet the carburetors to compensate.

Sticking or badly adjusted float valve in one or more of the carbs...be careful when turning it over until sorted as may cause hydraulic lock.

yes yuo can [email protected],,,they will have a unite for yuo.....cheaper...good luke....yuors mike.

Because, when fuel burns it creates heat even at idle. Also there is no airflow to remove the heat generated.

!980 gS750l HAS A SCREW HEAD TYPE PETCOCK. IT LOOKS LIKE THE LEVEL IS MISSING BUT THAT IS THE STOCK PIECE. TWO SCREWS HOLD THE PETCOCK TO THE TANK. REMOVE THOSE AND THE PETCOCK BASICALLY FALLS OFF. YOUR NEW ONE SHOUILD HAVE AT LEAST THE SAME BASE WITH THE SAME DISTANCE BETWEEN THE SCREW HOLES.

Chances are that synchronizing and balancing the carbs will do the trick. Have a dealer do the job. This is best done by trained mechanics.

pull the head light out and unscrew the speedo cable, then pull it out of the head light houseing and then disconnect it fom the cylinder head cam cover about center of the cover.had this very same bike, did this exact job, but in my case the cable had just come loose from the speedo head from engine vibration, happened twice, most lilely that is the case with yours as well

noy sure but call a dealer they will tell you for free

NEVER jump a motorcycle with a car, there is no telling what you fried on the bike. You are lucky the ecm is not toast along with the rectifier and other electrical componets. Replace the battery, it obviously has a dead cell and won't hold a charge.