twgranger
06-28-2004, 08:31 PM
What are people runnig for the main jet in there 85 Z with mods? I just put a 520 in mine and the plug is still white. How long do you have to run the bike while you are testing it? It runs fine but i can't get any color to my plug. I just added a K&N air filter on my carb and before that i had a 500 with the stock air box and the plug was tan. Does the filter make that mutch of a difference?