gtx rfi rebuild bore

  1. M

    Lost compression 15 minutes on rebuild gtx rfi

    I just finished doing a top end rebuild with two new pistons, .5 and 1.0 mm oversize. Took it out to the river this weekend and it ran for about 15 minutes before losing power. Once ashore, a quick finger over the spark hole showed that the front cyl (1.0 mm over) lost compression. I took the...