rotax

2001 GTX800 Injection, engine runs good when not in water only water hose connected(or not), but when you put in water at idle speed after 30sec to a minute rpm drops and engine stalls, can restart engine but same thing happens. If i start and put it in forward/reverse and give throttle i can go...

Good day all! Hope all is well with everyone here on the forum. I have been away from Seadoo for a few years but not boats in general. Sold my 18' this last year and am looking to get back in with something larger and more featured. I have always liked the Islandia and am scheduled to look at a...

Hey guys, picked up a 98 GTI from a buddy for the low price of free. Overall in good shape and after replacing the CDI and some exhaust parts, I have yet to get it in proper running order. I seem to be lacking vacuum in the fuel system. After cleaning the carb thoroughly and verifying all fuel...

eBay item number: 125456625311 Sea-Doo Rotax 717 720 Motor Mounts Two front 270 000 179 mounts Condition is good Hardware condition is good Genuine SeaDoo items Will be shipped in rigid cardboard box wrapped snugly in packaging paper USPS Shipping Thanks for looking! Check out my other...

Hey guys! My seadoo challenger is cavitation good really badly. Hits redline 8.2k immediately whenever I floor it and then takes a really long time to get on plane. I have read about the ride plate not being sealed correctly but am still thinking the jet pump might just need rebuilt? What are...

Hi there， I hope you all are doing well. I have one Seadoo XP limited with an 800 Bombardier ROTAX engine. Please see the pictures below. Does anyone have experience and know where the oil change hole for this engine is? I would also like to know what this plastic bucket is used for? What...

Hey guys, I have a 98 seadoo challenger 1800 twin rotax 787 engines for a couple season, both engines started up fine and ran perfectly. After this winter The port engine seems to have problems firing up, staying idle, while the other runs perfectly. I took it to a local boat shop and the...

My 2019 gti 155 had a piston come apart at 74 hours... not happy. To make matters worse I can’t find anything for this new of a ski! Piston disintegrated, head got some damage, rod bent, flipped around in the cylinder I’m sure... and it’s all in the sump. Basically junk. I just paid it...

Hi all, I am new to seadoo’s but have always liked the old school skis so I finally grabbed one. It is a 1990 3 seater gt with reverse, it needs a motor which I picked up to swap out of a good running “parts” ski. I figured while I was replacing the engine I would replace all of the fuel and oil...

I have a 1999 Seadoo GTX Rfi I connected the hose to my ski without it running and now I have water in my crank case. Is there a DRAIN plug ? If so, where is it ?

SOLD, thanks for looking.....Beautifully kept SeaDoo Challenger 1800 decked full of upgrades. This is an 18' 7 passenger jet boat with dual jets and 220hp. Upgraded stereo with Bluetooth, full snap-in carpet, optional front bow seat which creates a lounge area and is removable bimini top...

Hey there I am looking at buying a 717 Rotax bombardier motor off craigslist. The guy damaged the sea doo and removed the engine/pump and is now selling them. I cannot figure out what year the engine is and therefore whether it is a 2 or 4 stroke. The guy said he pulled it from a 2010 Sea doo...

Hello, I am negotiating to buy a 2001 Challenger 1800. The owner is over 300 kilometres away, so I am asking a lot of questions before making the drive. He says the boat is driven by twin 160 hp Rotax engines - rebuilt 20 and 30 hours respectively. All my research shows that a 2001 Challenger...

Hi all, I am new to the Seadoo family and forum. I have recently purchased a 2006 Seadoo Utopia 205 SE, it has twin rotax engines at 310HP. The problem I am trying to solve has to do with my throttle. On the lake when I am near full throttle (around 40-45mph), my Seadoo's right engine RPMs...

$4500 OBO 1998 SeaDoo Speedster Jet Boat w/ Trailer. 16’ twin engine (2 stroke Rotax 787) totaling 220HP. Mechanically a sound boat, both engines start right up and run just fine. Port Engine: When I purchased this boat the port engine was inoperable. I did a full rebuild on both of the...

I have a 1998 Seadoo Speedster with twin rotax motors. I have no clue what motor size they are, or what carbs to get. There are dual carbs on both motors. I need to replace the passanger side carbs. Are these 787, 717, 720...? Help me please lol. I need to know the correct carb size for mag and...

98 speedster with twin rotax. Starboard side motor runs fine. Port side will crank amd try to start, but as soon as it does, it cuts off. Pulled the carbs and cleaned them. It has sat for a while. Didn't have the best fuel in it on the last run either... Don't want to buy new carbs if i dont...

Just bought this 97 Challenger 1800 and put it on the water for the first time last night. Twin 787 Rotax's. Dropped it in the water and took it a few hundred yards up and down the river to make sure everything was going to run okay. Picked up the family from the dock and helped friends load...

Hello! So I recently acquired a 2001 Seadoo GTI. The previous owner didn't want to pay to have it repaired in the shop so it was given to me to play around with. Upon receiving it, most of the motor was apart, I removed the engine from the ski and striped the rest down to see what kind of...

Bought an SBT rebuilt 155 hp rotax 4tec for my 2003 Sportster last year. With less than 20 hours on the engine the number 2 piston disintegrated. Put a scope in the spark plug hole and all we saw was connecting rod with pieces of aluminum in the pan. Any one else having problems with pistons...