Ok so duelstroke what do i need can I bolt right up to stock s..t or what and jet change I know open airbox but what eles
You need to plug chop if you alter jetting..
This is the process of confirming that you are using the correct carb settings
for a efficient and healthy engine…
the process can be done at wide open throttle to confirm the main jet or at
1/2 to 3/4 to confirm the needle position.
Contrary to public belief one cannot alter the tune of a carb above 1/4
throttle by changing the air screw setting. The pilot jet and air screw setting
has little to no affect on the AFR above 1/4 throttle.
Before you make the plug chop run it is important that the float level is
correct, the idle is set correctly and there are no air leaks in the system,
otherwise the smoke ring may lie about the AFR.
WHEN ALL OF THE ABOVE ARE CORRECT PROCEED WITH THE FOLLOWING.
Warm up motor to operating temp.
Fit new maker specified plug, ride WOT ( or 1/2 to 3/4 throttle for the needle
) through the gears and hold that throttle opening in 5th or 6th gear for 10
seconds, or as long as you can safely.
Switch off the ignition and pull in the clutch, apply brakes to come to a stop
quickly.
Take the plug out and replace the old one for the ride home.
Carefully cut the threaded end off the plug to expose the insulator.
There should be a smoke ring of a cardboard or biscuit colour around the
insulator.
If it is non existant or a very light colour, you are lean and require a larger
main jet.
If it is a lot darker you are rich and may go down a size in main.
I prefer to run a little on the darker side, I may loose a little power but it is
worth it for the peace of mind that I won't need a rebuild so soon.
You have to get up a reasonable speed so that you can get the engine to
pull strongly.
Then hold it Wide Open Throttle (WOT) for 10 secs or as long as you can.
The idea is not to get speed but to make it pull strong at full throttle to get
onto the main jet circuit.
I find I can safely do it on a short run by applying the brakes some.
If you have not enough room you can use 4th or 5th gear with good results.