[89 250r guy]

Keep trying Arlen or try him on Facebook he is a busy guy but is great to work with.


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I bet he is
I really don"t need to talk to him I just need to know one thing whats that 7010443 code or what Mr.portwork mean ?
All I want to know if set up for race fuel ? that's it.
Il take your advice and keep calling I guess.
Thanks you Skeans1 for the reply

 

[89 250r guy]

its the serial number. first 4 are month and year, so july of 2010. the rest of the number is internal and documents the port timings, widths, angles and head shape.

best regards
-Jason

Ok. Who ever did the machine work recently wrote on the wiseco piston box. Exhaust port measurements 41.72mm
TDC 22 1/2 Im thinking TDC means top dead center. Port timing 19.22mm .
So its been ported and more than likely I will have to change my jetting up.
The jetting in it now is main 165 -slow is 50.
Do you know if the port timing number and exhaust port measurements on this are small big or huge?????.
By the way THANK YOU for helping me out.

 

[89 250r guy]

My guess is your mr. Port is mc port aka mx porting.

I think your rite he did want to set it up mc.
Thats why I think it was set up for race fuel.

 

[89 250r guy]

Are you sure, instead of Mr.port work, as in Mister, it's not MR as in mid range?
LOL.
After looking again MC Motor cross.
Its wrote really small lol.
Thanks I wouldnt have looked again and noticed that.