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  1. #1

    Unhappy 95slt750 wont run

    We got water in the cylinders. We pumped it all out. I had the carbs rebuilt. When we try to start it, it acts like it almost wants to start but wont. It will occasionally back fire out the exhaust. I'm only getting a little amount of fuel and oil in the cylinder. Spark is good. I also pulled the reeds out and they looked good. We drained the entire fuel system and replaced all filters... What else???? Why wont it start???? PLEASE HELP!!!!!


  2. #2
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Backfire isn't good. That means timing is off.

    Did water enter the engine while it was running?

    Did someone try to start the engine with the water inside?

    Was the elec. stator touched at all?

    You need to do a crank index to verify the crank is true first.

  3. #3
    What is a crank index? This sounds like something I should do!

  4. #4
    Yes. They tried to turn it over with water in the cylinders. What and how do you index the crank? water was to the bottom of the cover but it wasn't wet inside the cover..

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    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Proper procedure is to use a degree wheel and a dial indicator. Each piston should be at TDC exactly 120* apart from one another.

    Generic method (not entirely accurate)
    Bring the CEN piston to TDC. And then measure down to the tops of the other pistons through the spark plug hole. A new pencil or dowel rod works good for this. They should measure exactly the same. If they are off, your crank may be out of phase. If this is the case, do the "true" indexing method before you assume it's bad.

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by racerman16b View Post
    Yes. They tried to turn it over with water in the cylinders. What and how do you index the crank? water was to the bottom of the cover but it wasn't wet inside the cover..
    This can be very bad. Since water, (or liquid for that matter) doesn't compress, it can bend your connecting rods or take your crank out of phase.

    That's why if you have water in the engine, remove the spark plugs and use the starter to expell water out the plug hole until it stops coming out.

    NOTE: do not run the starter for more than 10 seconds at a time. The starter will get hot and damage to it can occur. Let it cool in between cranking.

  7. #7
    They tried to start for about 30 seconds and then stopped. I removed the heads and completely cleaned the cylinders out. I didnn't measure anything with them off though. I will try and measure them and see where I'm at.. Thanks...

  8. #8
    Moderator beerdart's Avatar
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    If you had water in the cylinders it has made its way to the crank your bearing might be toast.

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