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Exhaust Smell
When I come to a stop I usually smell a hint of gasoline in the exhaust, almost like the engine is running slightly rich. Can somebody tell me if this is normal for these 30+ year old bikes to smell like this or do I have more work on my hands? Ive pulled the plugs and #1 has slight carbon fouling, 2 and 3 are perfect, 4 has some oil. Compression 130 psi accross all cylinders.
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"Normal", no. What have you done to the bike as far as maintenance is concerned?
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from what i understand, 130 psi is a little on the low side, but may be acceptable if everything else is up to snuff. it sounds like a thorough cleaning and balance are in order.Comment
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The gas smell will go away when the carbs are cleand and adjusted properly, valves adjusted, timing set and ignition functioning properly.http://www.thegsresources.com/_forum...ine=1440711157'78 GS1000E, Dyna-S ignition, Dyna Green Coils, K&N pods, Delkevic SS 4-1 exhaust, Dynojet Stage 3 jet kit, Russell SS Brake Lines, Progressive suspension, Compu-Fire series Regulator 55402 and Advmonster cree LED headlight conversion.Comment
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If you are smelling gas at a stoplight, your pilot settings may be a touch rich. When you pulled the plugs, did you do a proper chop (putting around at low throttle for 20 minutes or so, then kill engine and coast in neutral to a stop before pulling plugs)?
Was the compression test on a cold or warm engine? Not sure on the specs for your 550, but 130 psi across on a cold test might be fine.
The oil on the No. 4 plug is worrisome. If that cylinder is oil fouling the plug, you might have a problem with the valves/rings.Comment
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