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TOPIC: Re:Black Rear Cylinder Plugs Forum Tools Post New Topic Show latest posts Rules

#96966 RoadieSL (User) 2004 Midnight Star Senior Boarder Posts: 228 Black Rear Cylinder Plugs 5 Months, 1 Week ago   Just had to adjust the throttle cable to work with my new grips and throttle boss while I had the Tank off I removed the plugs The back cylinder were black and sooty. The Front were just like I had just put them in they are Autolite Plugs and they have been in about 500 miles. any sugestions why the difference?? I don't think it is rich! main 167.5 35 pilot 2-3/4 turns 4200 ft elevation   Logged     2004 Midnight Star   The administrator has disabled public write access. #96974 Musky (Moderator) Doc took Grams beer Moderator Posts: 13222 Re:Black Rear Cylinder Plugs 5 Months, 1 Week ago   What's your needle set at? You get richer as you go up in elevation so you might be richer than you think. You might try the PMS at 2 turns and tweak from there too. The rear plugs are almost always darker than the front   Logged       The administrator has disabled public write access. #96975 RoadieSL (User) 2004 Midnight Star Senior Boarder Posts: 228 Re:Black Rear Cylinder Plugs 5 Months, 1 Week ago   Sorry, the clip is on the 4th from the blunt end don't know the brand of needle it was on bike when I bought it   Logged     2004 Midnight Star   The administrator has disabled public write access. #96979 Tom @ Seal Bch (User) Junior Boarder Posts: 126 Re:Black Rear Cylinder Plugs 5 Months, 1 Week ago   I use to ride a two stroke at 5000 ft elevation and would change the clip two positions leaner from sea level...rode great, could have gone one clip leaner but because its a two stroke I was more comfortable going richer...little 250cc made over 50 horsepower and never seized! On the R I'm running a 170 main on the 2nd position from the blunt end and am still rich...so I'm going to go to a 165...or I'll drill out to a 167.5 and start on the third clip. It looks like our bikes are similar on air cleaners and pipes...but I'm at sea level. What color is the front cylinder plugs...white, lite or dark tan??? If you are dark tan on the front I'd change the clip one or two positions leaner (#3 or 2 from the blunt end) and see how it runs...when I moved up three positions it made a big difference.   Logged     The administrator has disabled public write access. #97010 bowhunter4265 (User) Detroiter by Birth Eastsider by the Grace of God Senior Boarder Posts: 354 Re:Black Rear Cylinder Plugs 5 Months ago   I am with Musky, with your elev. you might still be a little rich.. turning in the pms will lean out the lower rpm, and if you do not come down out of the hills too often a 165 might work for you, or moving to the 3rd clip and keeping the same jet.   Logged     Paul K&N, V&HPowershots   The administrator has disabled public write access. #97018 RoadieSL (User) 2004 Midnight Star Senior Boarder Posts: 228 Re:Black Rear Cylinder Plugs 5 Months ago   I have had the clip on the 3nd before but the roadie doesn't like it. I will try to turn in the PMS thanks   Logged     2004 Midnight Star   The administrator has disabled public write access. #97023 bowhunter4265 (User) Detroiter by Birth Eastsider by the Grace of God Senior Boarder Posts: 354 Re:Black Rear Cylinder Plugs 5 Months ago   lowering the clip probably kills your mid range power.. pms should work, and if still rich drop the main jet one size..   Logged     Paul K&N, V&HPowershots   The administrator has disabled public write access. #97024 Musky (Moderator) Doc took Grams beer Moderator Posts: 13222 Re:Black Rear Cylinder Plugs 5 Months ago   Did you try the 3rd with 2 washers under the spacer?   Logged     Last Edit: 2008/07/01 10:03 By Musky.     The administrator has disabled public write access. #97027 RoadieSL (User) 2004 Midnight Star Senior Boarder Posts: 228 Re:Black Rear Cylinder Plugs 5 Months ago   No I didn't I couldn't find anything to place on top needle on the blunt end I will try to get something and give it a try. thanks   Logged     2004 Midnight Star   The administrator has disabled public write access. #97034 bowhunter4265 (User) Detroiter by Birth Eastsider by the Grace of God Senior Boarder Posts: 354 Re:Black Rear Cylinder Plugs 5 Months ago   Thats why Musky is so good always thinking, for got about the extra washers would put you in the half clip position.. 3 1/2 instead of 3..   Logged     Paul K&N, V&HPowershots   The administrator has disabled public write access.

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