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FJR Motorcycle Forums
Technical & Mechanical Problems
Won't start after valve adj
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<blockquote data-quote="Geezer" data-source="post: 517518" data-attributes="member: 436"><p>Spark, fuel, compression.</p><p></p><p>If you have fuel running through the system you should be able to smell it coming out the exhaust while you are turning the starter.</p><p></p><p>You can check for spark by removing a plug, leave the wire on it amd hold the base of the plug against the metal engine while you turn the atrter. You should see a spark at the tip of the plug. Use a well insulated tool to hold the plug or you'll get a shock up your arm. Of course that would verify that tyou have spark as well as watching the plug tip.</p><p></p><p>That leaves compression. If you are sure that you didn't damage a valve, and you know that your cam chain timing is right, and your shims are correct, then it is not likely to be a compression problem.</p><p></p><p>My guess would be no spark due to a flooded engine. Remove the plugs, dry them, allow the engine to air out overnight with the plugs out while you fully charge the battery, If it doesn't start right up, then try the WOT technique described in several threads on this forum.</p></blockquote><p></p>
[QUOTE="Geezer, post: 517518, member: 436"] Spark, fuel, compression. If you have fuel running through the system you should be able to smell it coming out the exhaust while you are turning the starter. You can check for spark by removing a plug, leave the wire on it amd hold the base of the plug against the metal engine while you turn the atrter. You should see a spark at the tip of the plug. Use a well insulated tool to hold the plug or you'll get a shock up your arm. Of course that would verify that tyou have spark as well as watching the plug tip. That leaves compression. If you are sure that you didn't damage a valve, and you know that your cam chain timing is right, and your shims are correct, then it is not likely to be a compression problem. My guess would be no spark due to a flooded engine. Remove the plugs, dry them, allow the engine to air out overnight with the plugs out while you fully charge the battery, If it doesn't start right up, then try the WOT technique described in several threads on this forum. [/QUOTE]
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FJR Motorcycle Forums
Technical & Mechanical Problems
Won't start after valve adj
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