Yamaha Nutz
New member
for the life of me i can not find my set up sheet for the PSI twins i have a customers sled here and want o double check everything to make sure it does not blow up again ...........(coolant also helps on a l/c sled) built him a motor a few years ago and he blew it up right away while the first thing was he had br8es plugs in it and i sent it off with a new set of BR9ES plugs in it so i thought he just melted it down ............well fast forward and finally got to it and no coolant in the motor ......dumb dumbs just bolted it in and went ........just scored the hell out of the new pistons ....anywho if you have the set up sheet let me know thanks
MIke
MIke
dsc577
VIP Member
Yamaha Nutz
New member
thanks i did find my set -up sheets plus they are easier to read than what is printed here ..........
toydoc
Member
Nutz, make sure YOU setup the clutchs before he takes it. That motor doesn't like to over rev. That helps take pistons out.
Yamaha Nutz
New member
yep took it out for a ride again today come in a 4500 and rips to 7700 got is jetted on the fat side right now but still runs out very nice ............back when i race my 88 with the the 570 motor and twin aaens for a vamx 600 i would rev that guy out to 8500 and never had a problem with blowing it up .....i know to high of rpm but that was where it liked it but i also had the sled coming in at 6200