Page 1 of 2

spark plug question

Posted: Fri Dec 16, 2011 5:24 pm
by 305elite
162 miles in to my break in let me know what you guys think...polini corsa..21oko....32:1 premix

Re: spark plug question

Posted: Fri Dec 16, 2011 6:50 pm
by bakaracer
Way rich!!

Re: spark plug question

Posted: Fri Dec 16, 2011 7:09 pm
by 305elite
you thinkits to rich for break in?.....i have a 102 main jetin right now what do you sugest

Re: spark plug question

Posted: Fri Dec 16, 2011 7:19 pm
by bakaracer
I don't think that's a proper mainjet plug chop as your still breaking it in unless your breaking it in at wot or more than 1/2 throttle on a constant on your ride? If your less than 1/2w throttle on your ride, its a pilot jet and needle that's running rich.

Re: spark plug question

Posted: Fri Dec 16, 2011 7:20 pm
by bakaracer
What does the temp gauge read when your riding?

Re: spark plug question

Posted: Fri Dec 16, 2011 7:24 pm
by 305elite
your right it is not a proper plug chop.....i havent went over half throttle yet being that i am in the break in process still....the highest the temp has gotten was 286...but at a stop lightt it drops

Re: spark plug question

Posted: Fri Dec 16, 2011 7:26 pm
by 305elite
so do you think i should leaveit untill im done breaking it in or down jet some now?

Re: spark plug question

Posted: Fri Dec 16, 2011 8:04 pm
by bakaracer
Your 280deg temp right there is a sign its rich. You can lean the needle 1 clip . I bet it burbles a lot when your just getting on the throttle? What do you have the air/fuel screw set at? Where is the needle clip position right now?

Re: spark plug question

Posted: Fri Dec 16, 2011 8:17 pm
by 305elite
it burbles A LOT...my af screw is only a half turn out and the clip i have no idea it is where it is from factory so imguessing the middle....after break in period what is a good running temp

Re: spark plug question

Posted: Fri Dec 16, 2011 8:21 pm
by bakaracer
Yeah that air/fuel screw is in way to far.What size pilot jet in there? You can get the temps in the low 300's for breakin. At wot you want to see around 385

Re: spark plug question

Posted: Fri Dec 16, 2011 8:33 pm
by 305elite
what should i put the screw at?...the pilot is 42

Re: spark plug question

Posted: Fri Dec 16, 2011 8:36 pm
by Bear45-70
There are no hard numbers for idle mixture screw settings. You adjust for the highest idle speed possible, then adjust the idle speed screw for an idle of 1800 RPM.

Re: spark plug question

Posted: Sun Dec 18, 2011 8:02 pm
by Pete M
Looks like a very cold plug

Re: spark plug question

Posted: Wed Dec 21, 2011 4:03 pm
by deuce217
What temp gauge do you guys suggest? I would like it to be hard wired not just a BBQ type. Thanks

Re: spark plug question

Posted: Wed Dec 21, 2011 10:31 pm
by bakaracer
The trailtech tto temp gauge is a cheap good one. Plus its small to put anywhere. You can get one of those for about $45 shipped