787

how do you remove the drive shaft in a 99 challenger twin rotax 787. Already have pumps off.

I have a 99 challenger that has two motors that are flooded. One motor was bought earlier this year and has a no fault warranty. I'm in the process of taking the motor out and have hit a wall. Im new at all this and working off videos and forums. Im to the point where i need to get the exhaust...

My 97 GSX with the 787 is running on the rear cylinder only. Was running great when I came of the lake last Saturday. What should I look at first?

Hello. I just purchased a 97 Challenger 1800 with the twin 787s. My friends and I took it for a test drive before buying and ran a compression test. We had 130-135 on each plug. It seemed to run fine on the test drive. We transferred it and took it to the river last weekend and it seemed to run...

Replaced the motor in my boat 97 Challenger ,(Removed the oil inj. sys) now running premix synthetic X-ps , 40:1 , so thats 16 oz. of oil to 5 gals of gas right? Starts up , but not getting any smoke , ??? Seems to run ok , but again thinking it should smoke like a train. Thoughts? Thanks

I know , another premix question , But I removed my oil pump and went with the block-off kit. I know the pros and cons to it. My question is if I run Seadoo X-PS full synthetic premixed in my gas , can I run the "Normal non-synthetic mineral oil to the rotary valve oil bath without issues...

The nipple is cracked off my oil pump so oil is just running out.. Do I need to buy the assembly or just housing? Does it come pretuned or do I need to mark where it comes off? thks!

I'm a new guy and I need help. I have a 96 Challenger with a 787. I've had this boat for about 7 years. It has always had an intermittent no start problem. Very frustrating. It would leave me stranded on the lake or work fine one day and not the next. It always fixed itself. I'd tow it to the...

Ok people i need help with some good website to get parts. 1st i need to get a new starter for my new to me 1996 gsx 2nd i need a site to get the little things like water inlet connectors to hook up a water hose to this ski on trailer ! 3rd Just a good all around site to get jetski...

I have a 97 gsx and a 98 gsx limited. the mpem on the 97 is toast, as well as the coil and starter solenoid. so i have been swapping these parts over from a 951 gsx limited. i have gotten the ski to turn on the info center, and turn over... but still am not getting spark.... any ideas...

hey guys. I stumpeld oppon a cheep GSX 787 RFI Hull. ans was thinking of putting a 951 in it. Is this even possible? and what moods would i need to make? maybe some of you have done such a install before? any input is much appreciated. thanks. kind regards Kasper

Need help on this one! Possibly even a therapist! 1997 XP 787 - Backfire / Flooding / Low Compression on 1 cylinder I just replaced a non-working coil with a pretty corroded one that had cleaned up to get a spark on this ski that was running perfect last year. Got ski to crank and sounded...

Hey guys , im new to the forum , i just recently picked up a 96 gtx from a friend for a steal and rebuilt the top end. The cylinders had some scoring , nothing that a little honing wouldnt fix. after the hone , the cylinders looked alot better, still a little scored, but ok. so i got everything...

Hey guys!!! I just got my '97 XP back after a family member was testing it out to buy it. He said he couldn't get it started so he went to tearing into it (it was running last time I rode it). Long story short... he discarded the coil that was most likely still good and I noticed a couple of...

I replaced my 787 with a newer motor. I bought a new rotary valve. I am not sure what degree it is supposed to be timed at. I have read on some sites 147 and on others at 130. Also what degree is the actual wheel itself supposed to be for this motor? The wheel I have is 160 degrees. Is this...

So I've often wondered what originally killed the forward piston on the previous engine (with the previous owner). As I've observed this recent rebuild, I've noticed that my forward cylinder oil line keeps going empty or keeps getting air in it form some where; this might have been the culprit...

Hey guys, not sure how to create a new thread yet but I hope you can help me!! I have a 1997 seadoo xp (787 engine). I had it out on the lake once this year, tipped it after a long day and it stopped running... took it home dried it out, took the whole top half of the engine apart and replaced...

I just put new carbs in my boat ( 97 challenger with a single 787) and a new SBT motor. I was checking my jetting and found in the new carbs (super bn 40) a 140 mag main and a 142.5 main in the pto. I checked my old carbs that ran great with the exception that they flooded the engine when warm...

Help! I just put a SBT motor in my boat, new carbs as well and new fuel lines and on/ reserve switch , (super bn same as stock) after learning how to do the timing I installed the motor. I lake tested it starts great!. But it will run up to 6000 ,6500 and will only do this for a second or...

I just put in an new SBT 787 in my (1997 Challenger with one 787) jet boat and new carbs as well! Sooo the timing seems to be still off....I learned how to do it on this site and put in a new rotary valve form WSM ? hmmm it wont line up exactly right? it seems to be off just a little bit. The...