rotax 2 stoke

  1. B

    1998 seadoo gtx rfi converted to carb.

    Purchased this beautiful 1998 gtx rfi back in April. Seller started it right up for me. Me only owning 1 xp prior didn't really know what I was supposed to be looking for. I got it home and started fixing the small oil leak coming for the oil pump. Then I realized things just don't look right in...
  2. J

    Drive shaft... Are the threads supposed to look like this?

    Hey all! Alicia here...I have a 2000 sea doo challenger with the twin rotax engines...717's I believe ..I am in the midst of rebuilding the jet pump and ordered a new impeller for the left engine. I have a question as to if I should be replacing my driveshaft as well. I would rather do it now...
  3. 2StrokeBoatGuy

    "NO BEEP"1996 Challenger New Starter relay, bilge works, fan works, and cranks when relay is bypassed.

    The following video shows my 1996 Seadoo Challenger with a brand new engine in 2022 and has me detailing the whole current issue regarding my key when connected to post only generates a very light click (as in low volume) sound near the MPEM, i believe... also when i hit the start stop button...
  4. T

    Please Help!! 98’ Challenger 1800, Losing Power and Dies.

    Hey everybody, Let me start off by saying I’m no expert, have basic mechanical knowledge, and this is my first boat. I bought this boat from this guy a couple months ago and was insured many promises and how this challenger is good to go for summer. It has a new engine on starboard side by...
  5. BoyzFunBoat

    Seizing in first hour after top end rebuild - 2005 Sea Doo Sportster Le DI ROTAX 947, 2-stroke

    My 2005 Sea Doo Sportster Le DI has about 175 hours. It's ROTAX 947, 2-stroke direct injection engine. I'm the 3rd owner, it had 149 hours when I purchased it last year. I've always used Sea-Doo brand XP-S 2 Stroke Synthetic Oil. When I purchased it, I had a new impellor and wear ring...
  6. Talley43

    Help I lost compression in 1 of my cylinders on my 96 challenger.

    Alright first I want to thank anyone who helps me figure this thing out. I'm brand new to boats and I've only had this one a month. I took my wife and 2 nieces out and about 2 miles down the river it died 2 twice full throttle no warning sign or nothin. So we went back to the boat ramp in the...
  7. S

    1996 Seadoo challenger 15' Considering Buying anything to look out for?

    I'm considering buying this 1996 Seadoo challenger boat for use on a lake (it has been used in salt water previously). It's about 3500 and in good shape- I have never owner a rotax 2 stroke and wondering about it's reliability, cost to maintain, cost to replace (if necessary) and any other words...
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