7 replies to this topic

[boostintt]

HI. new to seadoo boats (new to boats period)

picked up a 1999 seadoo challenger 1800 twin 787 as a project.

guys said it had been sitting for about 2 years.

both engines have great compression

first time i turned them on seemed as they were in WIDE OPEN THROTTLE

bought new carbs for each engine

first engine idled a lot better, the other engine did the same (WOT)

i swapped carbs again and they were not as bad.. but still seemed as if they were reving too much for idle.

i took it to the water... (lots of smoke but it kinda went away after a while)

loud beep which i would turn off by pressing the bottom right yellow button

the small black pressure valve on one of the engine was leaking a little bit of water from the bottom

i got the boat to do 12mph full throttle.

i did not really pay attention to the rpm or anything else other than my boat sinking (very new to boats)


any help or suggestions would help.

[boostintt]

anyone?

[Kevin Leclair]

Have you checked the intake grate to ensure everything is clean through there? Also what kind of shape is the wear ring and impeller in?

[boostintt]

i have been reading a lot lately and checking the wear ring and impeller will be my project tomorrow. any other suggestions? when i was running the boat; there was a lot of shaking when i gave it throttle.. and topped out at 12mph

[Kevin Leclair]

Yeah with those symptoms sounds like you might have something ingested in there or damage to the wear ring and/or impeller. Keep us posted.

[boostintt]

i will keep you updated. thanks for the help.

[boostintt]

well both wear rings are gone.. all the rubber part close to the impeller is just dried out completely.. but the impeller moves freely. could this be making my boat top out at 12mph??

[Kevin Leclair]

Most definitely, time for new wear rings.