I have a 2003 800XLT when it sits for several weeks it will not start. It has an extended crank time. Put wd40 in each cyl then it fires. When it sits for a week there does't seem to have a problem, maybe a little extended crank but it does fire

Randy, August 2005

My yahama waverunnerd running great. In lArea of lake with foliage helping a stranded boat. Started wave run er a Ross lake and it quit. Started again ran for 5 feet. Off again with warning signal sounding Could intake have taken in debre
Without my knowledge.

Cindy, June 2012

I've just sorted out the same problem on my waverunner!
It was turning over but not actually starting. I just got a can of easy start or (Ether starting fluid) and sprayed it into the air intake for about two seconds.

When It kicked in there was allot of smoke coming from the exhaust. I put some carb cleaner in with the fuel and this solved the problem.

hope this helps!

Simon love, March 2010

Please reply here and to megan7354@yahoo.com

I have a similar problem that I have not solved yet. I have a 1995 Waverunner that I bought about 2 weeks ago. It did start and run a few times, but moved very slowly. Turns out the intake was clogged. Anyway, after taking it out of the lake to pull the weeds out of the intake, the engine will no longer turn over. It's got a brand new battery, and it tries to start, but it doesn't even start up and stall. It's as if it's not getting fuel. I have played with the choke and that isn't helping. Any ideas?

Also, when it was turning over, the exhaust was very smokey. The previous owner said that is because the fuel in the tank was so old. He said that once new fuel is put in, that problem will go away.

Lastly, this waverunner is going to be used primarily in a fresh water lake. Wherever the water is less than 6 feet deep, there tends to be weeds, bags, etc. lingering to clog up the intake. It seems to me that some sort of metal "rake" like apparatus on the underside of the waverunner would deflect most of the weeds before they can get to the intake area. Any ideas on this?

Double lastly.... in the original message, the poster mentioned spraying WD40 into each cylinder. I'd like some pointers on how to do that. The only idea I had was to spray starter fluid (ether) into the air intakes like the way a car engine is started. I'm not sure I have even FOUND the air intakes. The air hoses that go from the engine compartment to the outside of the waverunner don't seem to be connected to anything. Where are there any intakes on the engine for air?

I would take this in for service, however the two yamaha waverunner shops in my county seem to have no employees that know what they are doing. I wonder if a standard boat dealer or motorcycle dealer or car mechanic would be better. The people in the waverunner places didn't know if a battery low in fluids needed to be topped off with acid, distilled water, or even if the battery could be charged, or if the waverunner charges the battery back up when in use, or if a waverunner has an alternator. All they knew about is how to sell a new battery.. and even then, of the five people behind the counter, only one of them knew how the credit card machine worked.

Want To Ride Them Waves!, October 2005

Sound like it is taking in water to me. Don't know much about PWCs just boats but how is it protected from taking water into the cylinders? If there is water getting in it will do untold damage restarting it after inactivity.

Paul, August 2005