[jc]

Originally Posted by chewy

The OS speed is a dang good motor,too bad they cost so much .I got 6 gallons of racing until it started to lose it's pinch(Byron fuel)I'll be running the new OS built Ninja this year which is very similar to the Speed but way less in cost. Byron Gen2 fuel again for this season

Have you done break in on the ninja yet? How did it go? I have one to break in for this year, just wondering if there is anything to watch for. Also, did you add the extra shim for break in?

[tekno]

If it came with a shim i would use it for break in. I think the jx engines are pre shimmed for 30% so, if it does come with a shim i would put it in if not, then you should be good for break in. Tekno.

[John Bakker]

Originally Posted by jc

Have you done break in on the ninja yet? How did it go? I have one to break in for this year, just wondering if there is anything to watch for. Also, did you add the extra shim for break in?

I did not add the shim for break-in I found the lsn to be set very very fat.I had to lean out the bottom a hole lot(4 full turns)after that it sat there and purred