Hey all. New guy here. ![IMG_0938.jpeg IMG_0938.jpeg](https://www.seadooforum.com/data/attachments/65/65737-67e007aadf318d7e5ef291501c25db79.jpg?hash=Z-AHqt8xjX)
![IMG_0941.jpeg IMG_0941.jpeg](https://www.seadooforum.com/data/attachments/65/65738-fb6f5bba2432045fb50bf48fcdb6efaf.jpg?hash=-29buiQyBF)
I just picked up a couple SPX (94 & 95) and I've been learning a lot. I'm a first time owner but not first time rider. Very much there is a difference.
My 95 is good. 140ish psi on both cylinders.
My 94 is not good. 135ish on front, like f'n 30 on rear.
But the piston doesn't look destroyed. The ring doesn't look super warped. My question is : is there ANYTHING that could cause a low compression in only one cylinder that I am unaware of? I firmly believe in devoting oneself 110% to learning about new projects, and have absorbed more jetski knowledge in the last two weeks than I've ever known.
Photos attached for intro / diag.
![IMG_0938.jpeg IMG_0938.jpeg](https://www.seadooforum.com/data/attachments/65/65737-67e007aadf318d7e5ef291501c25db79.jpg?hash=Z-AHqt8xjX)
![IMG_0941.jpeg IMG_0941.jpeg](https://www.seadooforum.com/data/attachments/65/65738-fb6f5bba2432045fb50bf48fcdb6efaf.jpg?hash=-29buiQyBF)
![IMG_1218.jpeg IMG_1218.jpeg](https://www.seadooforum.com/data/attachments/65/65739-e4a4d2fdfee46f6e8c025351178cd331.jpg?hash=5KTS_f7kb2)
My 95 is good. 140ish psi on both cylinders.
My 94 is not good. 135ish on front, like f'n 30 on rear.
But the piston doesn't look destroyed. The ring doesn't look super warped. My question is : is there ANYTHING that could cause a low compression in only one cylinder that I am unaware of? I firmly believe in devoting oneself 110% to learning about new projects, and have absorbed more jetski knowledge in the last two weeks than I've ever known.
Photos attached for intro / diag.