spark plug question after plug chop

[03Blaster]

ya thats the problem i didn't think it did anything on the 290 pull so i put the 270 and did it again. so you are saying i need to do one pull on the 270 pull and cut the threads off that plug and check for the coffee color?

before i ported my black and red blaster i had the exhaust vforce3 reeds k&n with no lid and i had a 270 jet and ran awesome but i want this other bike perfect.

 

[89blaster89]

yup you cant use the same plug twice, id go do another plug chop with the 290 and if its rich just keep goin down till you have the color you had in the picture...

 

[mjgnslngr]

yes. its the only way to be sure.

 

[03Blaster]

well the 290 was in the bike when it was about 1500 ft lower in elevation then i am right now. but i guess tomorrow or wednesday i will try another pull with the 270 jet and see what happens.

 

[Lindso]

How the hell are we gonna be cutting up our plugs up there in Silverton lol!

 

[Luni]

Take a hacksaw with you. A small one.

If the 270 didnt feel any stronger than the 290 then Id likely run the 290. Id rather be rich than lean thats for sure.

 

[Blaaster]

Always start with the bigger jet, it may save some embarresment later.

 

[03Blaster]

well i did another plug chop and with the blue bike with the 270 jet and its light coffee so i will either go to a 280 or 275 jet.

also did a plug chop on the 2003 that has all the engine mods to it and that has a keihien 35mm PWK air striker carb on it and i put a 150 jet with 48 pilot and this is what the plug chop looked like what do you all think?

 

[Blaaster]

Some what rich, but that is my type of colour, I like to run on the rich side.

 

[mjgnslngr]

Some what rich, but that is my type of colour, I like to run on the rich side.

gonna say the same thing. maybe one size down...

 

[03Blaster]

Sweet I would rather have it a little bit rich especially because there is a lot of work done to this motor.