wtf?

[bansheenoobie]

mods in sig. with stock carbs 30 pilots 340 mains left cylinder spark plug is solid black and kinda wet the right side is lt. brown but i noticed that side wasn't hittin on idle it would come and go like it had a clogged pilot but i cant figure out why the two plugslook so different any ideas would be great

[sheefreak]

Airleak usually. May want to do a leakdown test.

[bansheenoobie]

maybe but the that side doesn't really have much pressure out of that pipe but it would suddenly open up and act norrmal does the jetting sound a little rich im at sea level on stock jugs in 80-90 deg heat and my one plug was black and it was the better running of the two i dunno i just want this thing to run good until i get my new jugs please help

Edited July 11, 2006 by bansheenoobie

[RILS]

maybe but the that side doesn't really have much pressure out of that pipe but it would suddenly open up and act norrmal does the jetting sound a little rich im at sea level on stock jugs in 80-90 deg heat and my one plug was black and it was the better running of the two i dunno i just want this thing to run good until i get my new jugs please help

It sounds like it could be a little rich.Put a new set of plugs in it and drop your pilot to a 27.5 and you could come down on your main 1 or 2 sizes and see how they look.You may have done that plug in.I would also check for air leaks but if you cant find one maybe this will help 30 pilots do sound riich to me the main might not be off to bad .I ran 340main 27.5 pilot and 2 turns out on the airscew and had pretty good results,but i think a 330 or even a 320 might give better results.When i ran this setup i was running stk carbs,jugs and reeds with trinity pipes and pod filters. When you get your cylinders dont go put a huge jet in there you might be suprised at where you end up with them.I found that mine seemed perfect witth the 340s in there after porting the increasd flow will pull more fuel through the smaller jets.