Who does good porting work ?

[yj350]

I have a spare cylinder I want to get ported and I dont know who to use. Any recommendations would be great.

[harryredtrike]

any machine shop can do it

[yj350]

I have had a local machine shop bore some cylinders in the past but I want to get a cylinder ported and I dont want a hack job.

[harryredtrike]

if its a good shop with talent any machine shop can do it.try to find a motorcycle speed shop,they surely know how and what to do.

[Mosh]

PM Jason Hall on These forums!
Guy is a genious with 250R engines, and much more!

Also YamahaHondaman on here is known for great work as well.


Not sure if they have openings for new work or not.
But worth trying either of them.

[Pintowagon77]

No! Not any machine shop can do it. Some one who knows how to match port, use transfer port angles and injection angles should do it, even if it is a clean up job. If it is on a 2 stroke it is imparitive to have someone know what the bike is to be used for too. I have had 3 heads ported and have learned alot. First get it bored first! Having a cylider bored changes the transfer port angles slighty, like .015 of a degree for a 70 to 70.5mm bore. Also if you change the size of your ports have some one know if a cylider is decked or not, that can change alot of factors.
I got a friend that used to work for Trinity Motorsports that dose my dirty work. I can give u his info, pm me

[harryredtrike]

thats why i said a shop with talent,not some tard with a die grinder shheeeeesh

[Dirtcrasher]

JASON HALL!!!!!!!!!!!!!!!!!!!

He knows his port timing and what to rough/what to smooth, from what I've read in the past 12 yrs. on 3WW................