02-28-2011, 03:55 PM #1
valve train upgrade for fzr engine question,,,,
thats parts its importan or not like seadoo engine?? and what is max rpm with stock fzr valve train??
02-28-2011, 04:03 PM #2
8500-8600 seems to be accepted as "safe"
02-28-2011, 04:04 PM #3
If I am interpretting this correctly - SD limits I read should in general be limited to around 8,600 rpm. For the Yami 1.8l I say 8,800 rpm, but you can be a little more conservative.
I have heard it said the aftermarket valvetrain is good to 10k rpm, but I have also seen a motor that failed on the top end at 9,700 rpm.
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