Ok so me and a buddy are pretty new to bikes, but both of us are willing to learn as much as we can. So here is our problem my buddy just picked up a 96 susuki gs500 from a trade and it doesn't run. As far as im told it has a spark and the engine is getting fuel, what could cause it not to run.Oh i forgot to mention we are both mechanically inclined but like i said new to the bike scene. Any help is much appreciated, thank you.
joe44510
Like any other gasoline IC engine, it needs fuel and air in the proper combination, compression, and a properly timed spark.
First, find a service manual; this will be your most used tool.
Start troubleshooting with a compression test; make sure the throttle is open wide. Next, verify the fuel level in the carburetors is correct. Make sure that there is a good seal between the carburetors and intake boots, and no other obvious air leaks. Next comes timing; there should be timing marks, probably around the alternator.
First, find a service manual; this will be your most used tool.
Start troubleshooting with a compression test; make sure the throttle is open wide. Next, verify the fuel level in the carburetors is correct. Make sure that there is a good seal between the carburetors and intake boots, and no other obvious air leaks. Next comes timing; there should be timing marks, probably around the alternator.
You need three basic things for an engine to run:
1) The proper air/fuel mixture
2) A properly timed spark
3) Compression
The most common issue motorcycle engines run into is a gummed up fuel system, which is caused by sitting in storage with untreated fuel.
Newer engines use electronic ignition, which are way more reliable than the old manually-adjustable points. I personally have never seen one that mis-timed the spark. They can still fail, however.
A compression test can confirm or deny several issues such as a stuck valve, leaky rings, or a hole in the piston.
1) The proper air/fuel mixture
2) A properly timed spark
3) Compression
The most common issue motorcycle engines run into is a gummed up fuel system, which is caused by sitting in storage with untreated fuel.
Newer engines use electronic ignition, which are way more reliable than the old manually-adjustable points. I personally have never seen one that mis-timed the spark. They can still fail, however.
A compression test can confirm or deny several issues such as a stuck valve, leaky rings, or a hole in the piston.
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