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changed pipes


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ok i just got rid of my dynoport pipe for some pro circuts, i wanna have a ballpark estimate of what to run now, i have a mild mx port, the pipes, tdr reeds, 2-1 carb setup 35mm, single k&n filter, +7 advanced timing, im running a 200 main with a 55 pilot irght now, anyone have a new estimate? sredish i know ur good at this shit

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jettings done, anyone gonna help on the air screw for ideling thou?

how many kicks before it starts up? does it require choke to cold start and/or hot start? reason i'm asking, you might richen your pilot one size, then you'll have more adjustment at the air screw and it'll probably idle better. just my thoughts.

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first kick everytime, cold it takes 2 with choke out, when hot choke in first kick

sounds like your pilot is pretty good (same pilot I'm running).

 

i'm wondering if your +7 timing may have something to do with the rough idle then. advancing the timing will make it idle rougher, but i don't have much experience with going over +4 with the timing, don't think it would make that much difference but there maybe something there. how old is the fuel that's in there?

 

i'll think more and get back.

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if I remember right, on your plugs, the coloring on the ground strap changed more towards the center electrode than the bend. Ideally, you want the side electrode of your spark plug to change color at about the half way point, about where it makes it's 'L' shaped bend.

 

If the color of the electrode changes near its end where it sits over the center electrode, then the spark plug heat range could be too cold and what you're seeing is the color changing due to the heat transferring too quickly. If the color of the side electrode changes color near where it's welded to the base ring, then your spark plug may be too hot and what you're seeing is a slower heat transfer from the side electrode to the base ring. This can result in preignition/detonation issues and most of the deposits will be burned off so you won't be able to really tell, unless maybe with a magnifying glass.

 

Try a BR7ES and see if the color change occurs more towards the bend and if your "rough idle" subsides.

 

Oh, and the trip was great, just not long enough. :rolleyes: It's a little hectic around here today. We did some mountain biking, hit some very tough mountain jeep trails, and were caught in the rain on one day making the descent pretty difficult. We got to see what the Jeep was made of and it handled unbelievably, impressing the hell out of me. Did lots of other things too. How was your 4th??

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sounds like a good trip for the most part, but i hate rain, good to see the jeep pulled though, gotta love em, the 4th was good here, blew some shit up, then cruized around lookin at other fireworks, pretty good night over al thou

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