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2000TRX400EX
06-17-2004, 06:52 PM
I am installing a JE 416 kit and the directions that came with the rings say that they have to be filed to create the correct gap. Can someone please help me with this. Do you really have to file these or are they ok as is??:confused:

3x440ex
06-17-2004, 06:59 PM
put the rings in the jug and check the gap with a fila guage, it should tell you what the gap setting are in the instruction...you more than likely will have to file them.

2000TRX400EX
06-17-2004, 07:02 PM
do you by chance know what the bore is for a 416 kit?

3x440ex
06-17-2004, 07:06 PM
.80 over.....take it to a machine shop and have them bore and hone it.

2000TRX400EX
06-17-2004, 07:09 PM
I just had it bored out today. I am ready to install the piston and the directions say to gap it to Bore x .0045 but i don't know what the bore diameter is. How would I figure this?

3x440ex
06-17-2004, 07:10 PM
dont forget to take your piston with you.....i just had mine done but i have the ross piston...the bore size was 3.4223 inches and my instructions said to gap the rings .004 per inch in the top ring and .0005 per inch on the bottom ring.

2000TRX400EX
06-17-2004, 07:12 PM
so you don't have to multiply that by the bore size?

3x440ex
06-17-2004, 07:16 PM
it should be 3.4 so 3.4 x .0045 would be .0153

2000TRX400EX
06-17-2004, 07:19 PM
Ok I think i got it.

Thanks for the help

INFANTRY RACING
06-17-2004, 10:26 PM
go .008-.012 on the top .014-.018 on the second and you shouldn't need to touch the oil rings