Question about Suzuki Motorcycles
It has been serviced about 3 months ago
Could be a variety of things, however I've found 60% of my business due to bad gas and fuel problems. Oxygenated gas (with 10% alcohol) causes engines to run bad, absorbs moisture, eats seals and gaskets, etc. Try a fresh tank of fuel that's 100% gasoline. Track down the problem from there, second choice is ignition. Does it start hard when hot? have your coil checked by a service center. If these suggestions don't help, write back and we'll go from there. Provide some more symptoms.
Posted on Nov 25, 2014
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Posted on Jan 02, 2017
carbs need a good cleaning. had this same problem with an 82 GS1100. cleaned the tank as best i could, you can never get all the rust tho. finally had an idea to place a couple of old car speaker magnets on the outside bottom of the tank to catch any residual rust. been 4 years now with no more problem.
Posted on Apr 14, 2009
Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).
Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. Install a new stock NGK spark plug and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.
Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.
If the above does not solve the problem then pull the slide out of the throat of the carb and move the clip on the jet needle one notch lower.
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Posted on May 03, 2009
when you put on a new air filter you have to rejet the carb in order for the air/fuel mixture to be correct,because with a aftermarket air filter it is allowing more air in than before and not enough fuel. as the piston speeds up upon exceleration the air is not getting burnt off into exhaust because you do not have enough fuel in the mix
Posted on Jun 03, 2009
SOURCE: 83 suziki GS450 idle issues
the problem with the rubber was close but on the gs450 there is a metal insert that even if the rubber was rotted away the metal seals aginst the head so it cant leak. the problem is on the gs 450 suzuki used a cheap throttle cable that kinks behind the gas tank and kinks at the bend to the crabs under the set and the throttle system is a pull only not a dual cable pull push to always close the throttle. if you start the bike a wiggle the bend in the cable that comes out from the twist grip you will see it changes the idle. with either your finger or a screw driver and push the plate down on the carbs that the cable connects too. if the idle drops this conforms your problem. order a new cable from dennis kirk they have the revised one that has metal adjustment screw and metal clip in. better jacket casing as well.
Posted on Sep 29, 2009
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