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Changing spark plug on 2005 suzuki 650 s40

I cannot seem to get the gas tank moved backward so I can get to the spark plug. Any tips on this?

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  • Suzuki Master
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5/8 or 13/16 socket with hex hea for use with a wrench, not rachet. good luck

Posted on May 24, 2009


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How to remove the gas tank to replace the spark plug. I have already removed the seat and couple of screws. I have lifted and pushed down the gas tank but could not pull enough to reach spark plug. Please...

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I need to change the spark plug on my 1996 suzuki savage , I have removed the seat as well as the 2 bolts that hold the gas tank under that seat ,having trouble from there it won't lift off help please

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How do I change spark plug of 2005 suzuki s40?

Remove the seat (three bolts). Drain and then remove the gas tank (two bolts in the front, pull backwards and to the left as you simultaneously pull up), and disconnect the gauge harness and speedo cable. Obviously you need to disconnect the fuel line from the tank too.

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Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.

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