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how do you diagnose the state of your idle if you dont have one of those colour tune plugs?
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Re: idle circuits
When I was working in Yamaha shops I used an exhaust gas analyzer. The next best thing is an educated ear for how the bike sounds. I've never thought much of those color tune thingys.Originally posted by ScottS2488
how do you diagnose the state of your idle if you dont have one of those colour tune plugs?
GeezerHi my name is Tony and I'm a bikeoholic.
The old gray biker ain't what he used to be. -
Scott, don't hesitate, just twist and tweak the screws until you're happy. Read the spark plugs as a guide. Slightly dark at idle is O.K.Comment
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1st time I used a ColorTune it uncovered one cylinder that had spark but no combustion under 4,000 RPM.
Turned out to be a bad pilot jet. Bike was running on 3 cyl until just over 4K RPM then the 4th cylinder fired-up.
New pilot jets have it purring (like a caged tiger) through the entire RPM range.
To be honest, I never knew there was a problem. Idle had an "angry growl" to it and higher RPM power was like all of us have.
If I did the WOT chop test and read the plugs I'd have never found the problem.
I don't know if an analizer would have uncovered which cylinder it was. All these tool/techniques can be used to advantage. I wouldn't shy away from any of them.Pat Kelly
<p-lkelly@sbcglobal.net>
1978 XS1100E (The Force)
1980 XS1100LG (The Dark Side)
2007 Dodge Ram 2500 quad-cab long-bed (Wifes ride)
1999 Suburban (The Ship)
1994 Dodge Spirit (Son #1)
1968 F100 (Valentine)
"No one is totally useless. They can always be used as a bad example"Comment
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not so much shying away as having to put out $70 plus wait a few days to get the colour tune...it could snow here any day and I'd hate to have it all tuned up so I could ride into the garage for winter...lolComment
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in a moment of desperation this afternoon, I tried something really out of left field.....set the screws to 1 1/4 turns like the manual says.......it's not badComment
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