Question about 1986 Suzuki LS 650 Savage
My '86 suzuki savage won't rev up it just starts back firing. I've cleaned the carb, petcock, plugs and checked all the wiring, is the ignition module bad?
This could be a timing issue. I would remove the ignition/points cover and check for freedom of movement in the timing advance mechanism. A timing light will determine proper action. Shine on timing marks and rev engine. Mark such as "F" will move as engine is reved and some other marks such as "| |" will line up with timing mark.
If removing points/timing plate, mark plate position and where points wires go and remove points/plate/condensers as a unit. Test mechanism by twisting cam the points ride on. It needs to turn easily about 1/8 turn on its shaft. Look for free movement against spring tension and returns quickly when released.
If you disassemble advance mechanism, note cam position in relation to points. It can be assembled 180 deg out and not run. It must be free of grease and lubricants to work properly. Be prepared to adjust timing after reassembly.
Posted on May 16, 2009
When I had my savage it backfired all the time. They are known for this. Make sure you fuel is not to lean. Just adjust the fuel. You should adjust that and put some sea foam in it or ethenol treatment since most of the gas is terrible these days. Running 91 octane will help. Also you will want to replace the muffler gasket too.
When you replace that it will smoke which is normal.
I sold mine but I know the bike pretty well from tearing it apart due to trying to fix it from not running properly. Let me know if you have any more issues.
Posted on Sep 03, 2009
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Posted on Jan 02, 2017
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