how many hours on a ported 1390

[JIM'S PERFORMANCE]

Just wondering how many hours everyone has that owns a ported 1390.
On my 1390 ported i had some issues in the beginning that i straightened out, But since then i just checked my notes with the hours today and i have put 64 hours on the motor and 3/4 of that time is very hard hours. And knock on wood compression and the way the motor runs is still great. I am running 170 PSI. on the compression and 42 thousands squish with a 3 degree key way.

[hydrojunkie]

i have 601 hours on my ski. ooopppsss thats your ski. hey bud. just wanted to say hi

[OsideBill]

0 hours and not an issue so far

[Bryan K]

I just hit 17 hours on mine and it's running better every time out. I'm having less issues now than when it was an unported 1300

[rossnemo]

Mine is in the 60 something area also... Zero issues since day 1

[coop]

Jim, thats how you kicked my azz at last years mudbug. You had a 1390. Just playn. That was fun. I hope to see you this year so we can ride again. No I don't have a 1390, but my 1300 is finally running better. Best wishes.

Brian

[alex29573]

what kind of issues are you guys having at first?

[dhoad]

what kind of issues are you guys having at first?

tuning is the main issue. motor needs lotsa fuel

[JIM'S PERFORMANCE]

what kind of issues are you guys having at first?

In my case it was not enough clearance on the pistons, Once i set the cylinder to piston clearance up at 8 thousands then i had no more problems.

[Mik72e]

My Lowell BB1390 is still running with its new owner its done around 50hrs now still going strong.