Originally Posted by
ezveedub
On the NR 7 ports, its easy to go too lean. They keep getting faster and faster, so also set the HSN for just what you need.
I meant leanin on it as in the throttle too much. I would keep it pinned down a long straightaway, the engine just kept pulling, so I kept mashing. It was only about 1.5 gallons old when I was doing this. Right around 2.5 gallons it wouldnt stay running for even a lap. I tore it apart and found the sloppy rod and egg shaped crankpin. I wish I would have taken my time on break-in and waited till the pinch was loosened up a little, but I didnt know that then.