masterminds
New Member
I have a 1997 Seadoo XP and it is hard to start in the water or out of the water. I have to give it almost full throtle then once it starts i have to back down the throttle slow to keep it going or it will die out. Once I do that It idles fine in the water. Also it seems that i get a lot of hesitation with low rpm with the first jet going, once i get the rpm's up she rides great then once i slow down i feel the hesitation again. I have no problems with it dying or cutting out just hard to start and hesitation on the low rpm 2mph-20mph
What I have done so far:
I just rebuilt the upper end, replaced the fuel lines with clear, rebuilt carbs. I have 150psi compression in both heads, my pop off test showed me 40psi only if i pumped it hard with plenty of wd40, if i pumped soft it would just hiss down. but with plenty of wd40 it would pops every time. I thought 40 psi was kinda high though. The factory manual says it should be around 29 - 49psi. I have the 1.5mm Needle and Seat with the original jets. I also have the Low Speed Screws set to around 1 1/4 turn, High Speed Screws Completely Closed.
Any info to what i can do to help with this starting anfd hesitation? I was going to buy another needle and seat and rebuild the carbs again if needed, and maybe make several adjustments.
Also I need to replace impeller and wear ring, however it should have nothing to do with the starting and hesitation i think. I need some expert advice. Also I have not tried to blow out the air fuel lines but will do that when i receive a new fuel baffle since my guage is not working. This has been a fun experience.
What I have done so far:
I just rebuilt the upper end, replaced the fuel lines with clear, rebuilt carbs. I have 150psi compression in both heads, my pop off test showed me 40psi only if i pumped it hard with plenty of wd40, if i pumped soft it would just hiss down. but with plenty of wd40 it would pops every time. I thought 40 psi was kinda high though. The factory manual says it should be around 29 - 49psi. I have the 1.5mm Needle and Seat with the original jets. I also have the Low Speed Screws set to around 1 1/4 turn, High Speed Screws Completely Closed.
Any info to what i can do to help with this starting anfd hesitation? I was going to buy another needle and seat and rebuild the carbs again if needed, and maybe make several adjustments.
Also I need to replace impeller and wear ring, however it should have nothing to do with the starting and hesitation i think. I need some expert advice. Also I have not tried to blow out the air fuel lines but will do that when i receive a new fuel baffle since my guage is not working. This has been a fun experience.