eblack wrote:
I'm sorry, I'm simply stating what Speedstar has recommended me to do; I'm on this websight to see what you guys recommend. OK, I lied I didn't scroll thru 36 pages of "jetting" threads and countless replys to actually see if a 50mm pilot was mentioned; but I did read the tech. articles and alot of the recent threads floating around. My reasons for re-jetting are the "cough" or "puh" when I throttle up off idle, 6 turns out on the pms isn't right, and a new needle with a 185 main will probably be too rich. I think the dyno shop left the 30mm pilot in (by the prev. owner), put in a 185mm main open the screw until it got a good reading and was done.
That is what this place is all about. Get the best recommendations you can, make your decision, get it together and report back. If you don't take the recommendations of others here, you tell us how it went so we can all learn from your experience.
The prevailing method of jetting around here is toward smaller jets. The Road Star engine will tolerate some leanness, but won't tolerate rich jetting. It carbons up the valve's and that leads to a whole new problem
There are other camps in this jetting arena. Some use fatter needles and larger pilots (speeedstar), some use a fat pilot with a fairly standard needle (mikuni or
Dyna needle) like bulldog likes to do, some lean toward standard needles with smaller mains and pilots finely tuned (most folks around here, largely inspired by Odo).
The best thing you can do is get inline with one camp of folks. That way when you need to make adjustments there are a lot of folks who can offer advice and help.
In the end its about balancing your circuits. You either figure that out yourself or you follow a group of folks who have worked out a process or method and have some sense of how to go about that.
If it were me, I might consider getting a Baron's kit and starting from scratch. Its the most widely sold jetting kit and most folks around here use them. So lots of folks who have done what you are about to do with the parts you are about to use.
If you start by getting your main right, you will be a long ways down the road to getting it right. The
WOT test (as Musky pointed out) is probably the best way to do that short of using some kind of exhaust analyzer. That eliminates one critical variable and gives you a stake in the ground around which you can start to build up a strong jetting profile.
You will get it right. Just be patient, listen to those who have done it and learn what worked, then start digging in.
Thats what this place is all about
Gram
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