Yamaha 701 61X / 62T engine assembly for my 1994 SN Superjet.
Автор: TooManyToys TV
Загружено: 2023-09-12
Просмотров: 4939
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So I posted a video back in May of 2022 when I first built this motor. Nothing went wrong with the motor but I did notice I had weak compression (120 psi both cylinders). I found out that when I had someone measure the bore that they only measured the top of the cylinder which was still in spec for stock bore but my cylinders were hourglassed. So I had to get my motor bored over .5, which lead me to get ProX pistons and I was on my way to a new top end, again. After putting an old crank back in the motor the first time it never sat right with me. Putting a almost 30 year old crank in a fresh motor just scared me. So I went and also bought a new WSM crank. And to finish it off I bought a ADA head, 35cc domes (putting me at 185 psi each cylinder) and a girdle kit for it.
I’m no certified mechanic on jetskis but I do take my time and do it the right way, I hope! So take the video and learn from my mistakes from the first time and get these old ski back on the water rippin!
Built June 18th, 2023
Put back together and running on July 13th, 2023
Break-in / heat cycles July 25th - 28th, 2023 (don’t remember which day exactly)
Test and tune on July 30th, 2023
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