Can't get proper valve clearance.
#21
Wow, always exciting to have an improved or modified part ready to go back in place.
If your up for it would you take a pic or 2 of in and outlets?
Thanks ...Steve F
P.S if you need sand bags for your front end let us know:-)
If your up for it would you take a pic or 2 of in and outlets?
Thanks ...Steve F
P.S if you need sand bags for your front end let us know:-)
#23
Oh...clarify a minute, please. Did Bill do some "flow" work on your head or was this just a valve service deal? I've lost track.
#25
Can you safely port the exhaust side on your own with a little bit of hands on know-how, to gain a little better flow? I thought it was just the intake you really do not want to grind on unless you really know what your doing... since you can actually make it worse?
#26
What's his shop rate? Just trying to get an idea of how much time he was thinking of a port touch-up taking.
#27
Can you safely port the exhaust side on your own with a little bit of hands on know-how, to gain a little better flow? I thought it was just the intake you really do not want to grind on unless you really know what your doing... since you can actually make it worse?
On the intake side, too FINE a finish will cause fuel to condense out of the intake charge and give you uneven mixtures. Opening the port up too much can also mess up gas flow and create a stagnant pocket of gas behind the valve that could blow the crap out of your carbie if the bike backfires.
At either end, if metal particles get inside the valve guide, or you burr it up with your grinder, it will be rooted in no time.
Anybody can do bad port work but GOOD port work is very tricky (black magic for the hot-rodders and lots of math for the designers). If you're not prepared to have things go very wrong while you learn, or at least to be very conservative in what you do (cleaning up a few casting dags here and there can help performance with pretty low risk), leave it to the pros.
#28
He doesnt do the port work he has another shop that builds race motors do it that is near by him. He mentioned a guy named John. So i do not know, The entire porting was going to be 450$.
#30
If you wanted to you could clean up the little burr in image 185.jpg but those castings are pretty good already. Short of actually polishing them (which is sloooooooooow) there's not much an amateur can achieve there.