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Glamis400ex
11-09-2003, 05:45 PM
Hey Gang,

I just got back from Glamis and am in the process of checking the plug. I used a mix of 110 leaded and 91 mixed 50:50. I have the cooler plug for the 400ex, the DPR9Z.

If someone has a pic of a properly jetted plug running 50:50 mix and can send me a pic, that would be cool. I've never dealt with leaded fuel before so it looks a little different.

The electrode and insulator look pretty good, the insulator nose is grey and very slightly tan and comes about all the way to the top of the nose but I have a dry whitish film on the area that surrounds the insulator.

I'll take a pic if someone wants to post it for me.

Glamis

alinerica@cox.net
cals400ex
11-10-2003, 08:17 AM
sorry, i can't help with the leaded fuel. however, on 93 octane i find it to be jetted right when you will see a change in color right on the bend of the plug. it will change from a gray to a tan/brown color. i would assume that change would still be shown with the leaded fuel, but i am not positive since i have never used it. yeah, a pic would be nice.
YZROOSTINYA
11-10-2003, 10:59 AM
i run leaded, plug is stll tan with a grey tint
Glamis400ex
11-10-2003, 05:03 PM
cals400ex,

post my pic for me, send me your email addy.

alinerica@cox.net

Glamis
cals400ex
11-10-2003, 10:34 PM
sorry dude, i don't know how. i read your post wrong the first time. i thought you said you were going to post a pic. do you need a scanner for that?? if so, i don't have one here. i am sure we can get someone to do this that knows how.
Chef
11-10-2003, 10:42 PM
You should be fine. My plugs never get good brown color, but the head temp checks say that its running fine!
MIKE400EX
11-11-2003, 08:39 AM
Sounds like it's very close Glamis. How did it run with all the new mods?
Glamis400ex
11-11-2003, 05:33 PM
My jetting is as follows:
168 main
42 pilot
needle 4th clip down
2 and 3/4 turn out on air screw
K&N
no airbox lid.

Mike,

She ran great, I ran it solid, but didn't over do it. No smoke!!:D

Glamis
250rpilot
11-11-2003, 05:40 PM
glamis, i noticed on my R, after running 50/50 93 octane with vp c-12 (108 leaded) and golden spectro @ 52:1, my plug was a sort of orange color, on my previously light/medium tan plugs.......my guess is the leaded gas is the culprit.