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Hello, I’m trying to figure out what is the proper procedure is for magneto timing on a Rotax 717. I just got a rebuild from SBT and it’s going in a 97 sportster. I cannot find any timing marks on the stator. Also, I was wondering where the pistons need to be, if it needs to be at TDC, or...

Good Afternoon, I’m trying to replace a cracked cylinder jug on a Rotax 717 and was wondering how I check if my engine has been bored out so I can get the right cylinder jug. I checked diameter with some digital calipers and got 82.5 mm. I’m wondering if this is the right way, or if it should...

Hello, I was wondering if anyone knew how to hookup the temperature sensor on the Rotax 717. I bought the sending unit and I know it threads into the top of the engine, but I can’t figure out how to hook it up to the MPEM. I have a small wire that I believe hooks up to it but am not sure how to...

Good Morning, I need a shift cable for my 1997 Sportster and I’m trying to figure out which one I need. I’m finding them on SBT, but it always says “right” or “left”. I know that is for the twin engine sportsters. Mine is the single engine, does anyone know if the twin engine shift cable will...

Good Morning, I have a 1997 Sportster with the 717 engine. I bought the boat about a year ago, and knew it had a cracked water jacket due to not being winterized. I JB welded it as a short term fix and it seems like it is holding just fine. However, I want to fix it for the upcoming season. I...

Good Evening, I have a been working on a 1997 sportster for the past few months and have been recently testing it on the water. The carburetors are rebuilt and I am having problems with surging. I had a day where it ran fantastic (ran it for about an hour cruising around a lake) but the...

Hello, I’ve been working on a 1997 sportster for the past 2 months. I purchased rebuilt carburetors for it off of eBay, installed them and the boat ran great. I was getting poor performance and was pretty sure my wear ring was bad, so I replaced the wear ring and impeller. I tested it today...

Good Afternoon! I am trying to find the right carburetor for my 1997 seadoo sportster. It has the dual Mikuni carburetors and is running the rotax 717. I tried rebuilding the carbs but they were so corroded I ended up stripping screws, so I’d like to just buy a new set of carburetors. I...