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    Pre-mix ratio question

    If i take a sample of gas that has some oil mixed in - is there any way to tell the gas to oil ratio? I just purchased a sport jet 175 xr 2 that has the automatic oil injection. The original owner said he never trusted this setup so he added a "a quart or so" of oil into the gas tank "just in...
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    Sport Jet 175 xr2 - low compression in one cylinder

    I just purchased a 1997 Sea Rayder with the Sport Jet 175 xr2 engine. These are the results of my compression test: Port side 120 125 120 Starboard side 115 120 105 Engine seems to run great - should I be worried about the one cylinder with the 105 reading? Is there anything I can do to...
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    Electric Engine Conversion?

    I overheated and seized my Sport Jet 175. Instead of replacing the motor which is now becoming very difficult to find, I am thinking of converting to complete electric. I have a 16 foot Sea Rayder Jet Boat - has anyone made such a conversion? Thanks!
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    Sport Jet 175 x2 with low compression

    I am having problems with my 1998 Sea Rayder with a Sport Jet 175 x2. It idles extremely low - around 800 rpms. I have tried a number of things, but just can not increase the idle. I did a compression test and all 6 cylinders are at 105 psi. Is this engine now worthless???
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    Sport Jet 175 - backfiring? at idle, sounds like popcorn

    At 2,000 rpm and below my Sport Jet 175 xr2 makes very loud popping sounds. Above 2,000 rpm to WOT - the engine sounds and runs great, just having an issue at low speed/idle. Hope this video helps you help me: https://youtu.be/y2mOLIWaD6U
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    Sport Jet 175 - issue with stop circuit

    Getting no spark with the black/yellow connected. If I disconnect the black/yellow, the engine starts fine. Where do I begin to troubleshoot this?
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    Sportjet 175 compression test question

    Can you run an engine compression test on all 6 cylinders without running water? Will I damage the engine if I run the starter multiple times without the hose running water through the engine? I am thinking about purchasing a very old boat with no history on it (other than 73 hours). Don't...
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    Sportjet 175 reverse gate adjustment

    I have a 1997 Sea Rayder with the Sportjet 175 xr2. When looking straight at the reverse gate (basically lying on the ground and looking directly at it) how much of the nossel should be showing? With the engine in idle, about a half inch of my nossel can be seen. With the boat running and in...
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    Sportjet 175 jet pump problem

    I was running fine (had it at about 4,000 rpm) and all of the sudden the tach skyrockets and the boat is going nowhere... After getting my 1997 Sea Rayder back on the trailer and attached to a garden hose - the impeller is not turning. It's like a manual transmission on a truck stuck in neutral...
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    White Smoke - Please Help!

    I have a mercury sport jet xr175 (2 stroke) and it blows a huge cloud of white smoke at initial startup. The smoke goes away after about fifteen seconds (you can see only a small amount of white smoke once the engine starts). Boat seems to run great once it is warm (white smoke seems to go...
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