They only had plugs that were 6's not the fives i had at the auto store, so i'm running a cooler plug. they seem to work great but it could just be because now i have new plugs.
what say you on this type of switch?
They only had plugs that were 6's not the fives i had at the auto store, so i'm running a cooler plug. they seem to work great but it could just be because now i have new plugs.
what say you on this type of switch?
whatever works, is what i say
5,6 or 7 is what you run in a 50cc. 5 in a very slow cylinder, 6 in a normal one and 7 in a fast cylinder.
In a 70cc you run 8 or 9. 8 is for fast cylinders, 9 is for crazy ass fast and/or overheating cylinders.
I switched from a 5 to a 6 on my sparta and it got rid of the pinging i would get on slight down hills at WOT
roald, get on chat now
from my experience, it has more to do with compression. High comp kits need cooler plugs.. i usually only switch from six when i have a hard time getting a bike dialed in, to see if i can get it running better. Thats only a rule of thumb, too, because i had a really fast puch that ran a 5, really rich, super high compression.
yeah, under a really high compression bike ive had to run a 5 just to keep the carbon off the plug
What is the complete number we're talking about here? What brand of plug? I've been using champion plugs...I take it we're not talking about those here.
they're talking about NGK's plug numbering system
how much of a bump in compression would you say warrants a cooler plug? i just bought a brand new heat range 6, but i'm putting a higher compression head on this week. should i spluge and spend another couple bucks to get a 7?
"Some good reading":http://www.dragstuff.com/techarticles/how-to-read-plugs.html
"some more good reading":http://www.strappe.com/plugs.html
here's some more purdy pictures
Want to post in this forum? We'd love to have you join the discussion, but first: