Joe118969
05-28-2007, 09:55 AM
I've done a tune up a couple thousand miles ago. Valve lash, rotor cap and all that for emissions. Im also running colder spark plugs 7s NGK, for using nitrous. The motor runs fine, theres no smoke at wot. Its just at idle its rough. I know with harleys and what not there like that due to the cam and scream at wot, but I don't think the cam with the jdm motor is the same. Im thinking it has to do the timing? How can I fix this.