Question about Yamaha Waverunner Xl 800 / Xlt 1200 Jet Ski Pwc Cover

1 Answer

95 Yamaha super jet 700 runs for 2 to 3 minutes and then has no power and acts like the thermo switch works. The themo switch has been disconnected. Let I cool down and it is fine for the same 2 to 3 minutes. Checked all fuel lines, filters, tank etc. Rebuild kit on carb and new reeds which were bad even though I didn't think that was causing the problem? A mechanic said it might be the stator which is 460.00 from the dealer but not sure. Any help would be greatly appreciated.

Posted by on

  • johnny bonacci
    johnny bonacci May 31, 2017

    It could be that your crankseals are leaking. The carbs rely on crank pressure to operate properly. If the seals are leaking it can cause very inconsitent issues with how the ski will run. Also the seals can ruin a stator if they are leaking. Pull the flywheel cover off and see if it is wet with oil inside. I think you need a stator to fix your problem, and the ski will still run with leaking crankseals, but if they are leaking they can shorten the life of your new stator. And yes stators are not cheap.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 331 Answers

Have you tried without fuel tank cap?
Seems to me as a fuel delivery problem...

Posted on Nov 14, 2017


6 Suggested Answers


6ya staff

  • 2 Answers


Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017



  • 3567 Answers

SOURCE: Won't idle without choke

The pilot jet controls the air/gas fuel mix at idle . If the jet gets plugged up not enough gas gets to the emgine at idle. You will need to remove the carbs and float bowls and clean them, paying special attention to the pilot valve. Count the number of turns to remove the pilot screw and replace the same number of turns then turn counter clockwise 1/2 turn.

A “very helpful” rating for this answer? Thanks!


Posted on Jun 30, 2009


  • 1392 Answers

SOURCE: 2000 Yamaha TW 200 lacks power, has a high speed

If your header is glowing red, you are getting way too much gas in the cylinder, and it is burning it in the pipe. You either have a misadjusted float, or your timing is off. You could be as little as a tooth off, and have a problem. I would suspect the carb flooding more so.

Posted on Jul 13, 2009


  • 1 Answer


I have a 2004 banshee at the yamaha dealer being worked on.It would not run when i took it up there they cleaned the carbs and put it back together it will start but when you rev it, it holds itself wide open and wont shut down unless you pull the plug wires.they also checked the floats in the carbs said they where ok. they think it is a vent issue with the gas tank or the fuel shut off valve.IS THAT POSSIBLE

Posted on Aug 27, 2009


  • 1 Answer

SOURCE: 1997 Yamaha Kodiak 400, hard to start, once you

I would follow the fuel line all the way check the filter it should be inline and check the pump as well i would say its one of them two.

Posted on Jun 21, 2010


David Belcher

  • 1978 Answers

SOURCE: I have a yamaha

Check that the intake manifold is not cracked or separated, extra air might cause you to need the choke. Some times the first carburetor cleaning does not do the trick. Take the carburetor off again, take out the slow jet, and shoot through it with cleaner to make sure it is clear. Now shoot through the passageway of the body and make sure that the body of the carburetor is clear . When all passageways in the body are clear then reassemble and put it back on. If the air screw is set correctly you should have a machine that idles.

Posted on Sep 09, 2010

Testimonial: "Thank you very much Heimlich. that should do the trick. "

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

99 yamaha waverunner 1200 xlt starter stays engaged and powered on even after stop is pressed and kill switch is pulled.

The start stays engaged the entire time? I would guess it's a bad ignition switch -- it would be sending power to the starter (through the solenoid) regardless of if you switched it off.

Maybe it could be a bad starter, too. I'd start with the switch.

Mar 10, 2016 | Yamaha Jet Ski Pwc Watercraft Cover...

1 Answer

Rev limiter on 1996 Yamaha wave runner 700

Yes it is, but do you really want to be a mile offshore and have the engine give out?

New Yamaha Adjustable Rev Limiter CDI 62T 700 Waver Raider Super Jet...

Sep 21, 2015 | Yamaha Motorcycles

1 Answer

1996 yamaha waveraider 700 Thermo Switch Assy what dose it do?

Yamaha 60E-82560-A1-00 Thermo Switch ASSEMBLY ...

? 2:22
Jul 15, 2013 - Uploaded by PartsPak6
Buy Yamaha 60E-82560-A1-00 Thermo Switch ASSEMBLY at: ...

Jun 07, 2014 | Yamaha 12V Air Pump

1 Answer

Yamaha superjet paint peeling engine cowl

Bring to a reputable paint shop for re-spray. After wax yearly and keep out of sun when not in use for extended periods.

If you need further help, reach me via phone at

Apr 19, 2014 | Yamaha Stator Super Jet 700 Sj700...

2 Answers

Fan Will Not Run

There are several reasons why a Maxim-X fan might not run. One reason might be that the fan fuse has blown. The fan has a 10A fuse all its own which is located under the cover for the indicator lights by the ignition keyhole (there are four #2 Philips screws that need to be removed before the cover can be removed to access fuses and indicator bulbs).

If the fuse is OK, then the next possibility is that the 'Thermo Switch" which trips the fan isn't making a connection. The Thermo Switch is threaded into the thermostat housing and has a push-on wire connection. Actually, the temperature sensor is also threaded into the thermostat housing but it is the smaller of the two sensors/switches. The larger of the two, which I believe is accessible from the left side of the thermostat housing, is the switch that trips the fan. Often the push-on connection gets oxidized and needs cleaning. Often the wire connection becomes loose and can simply be tightened and pressed securely back into place to restore the connection.

Another reason the fan might not spin is that the power connector has a bad connection. From toward the right side of the fan you'll see a short length of wire (maybe a foot) with two conductors leading to what I seem to recall is a red plug. Like all the other plugs, that can oxidize and create a bad connection. The plug can also come loose if someone before you has broken the locking tab or maybe didn't plug the two halves properly together again. You'll find the plug end up around the right side of the thermostat housing.... between the thermostat housing and the right frame rail. That's also where one white and one yellow plug are tucked away (the yellow is the power plug for the left coil and the white is the power plug for the right coil). It's a pretty tight cluster of wires and plugs but finding the red one for the radiator fan power is fairly easy because tracing the wire back to the fan is fairly easy.

So, if the fuse is OK and the thermo switch is working, and the connection from the thermo switch is a good one, and the power connection for the fan is solid.... then the fan might be burnt out. If so, they come up on eBay often enough so it shouldn't be too difficult to find a replacement.

But, from my experience, my money is on the fuse first, the bad thermo switch connection second and possibly a failed thermo switch third. That's what I've seen most often. Whatever it is, it's a reasonably easy fix.

Sep 21, 2013 | 1985 Yamaha XJ 700 X Maxim

1 Answer


Check your fuses. If they are ok check your themo sensor. If you disconnect the plug on the thermo sensor ,with ignition switched on, the fan should start.

Dec 11, 2012 | 1993 Toyota Camry V6

1 Answer

I have a 1986 Yamaha MaximX 700, i have cleaned the carbs with carb cleaner and seafoam, but when i start it, the only way to keep it running is having the choke all the way on and twisting the throttle...

Hi, Caseytkerns and the usual suspects are:
1. Fuel cap or fuel tank is not venting properly.
2. Fuel filter clogged.
3. Fuel line pinched or kinked.
4. Float needle and seat sticking.
5. Float level too low.
6. Carburetor bowl vent line clogged/blocked/pinched.
7. Idle adjusting screw set too low.
8. Air/fuel mixture screw set too lean.
9. Idle port, transfer ports, slow air jet clogged.
10. Slow fuel jet clogged.
11. Faulty fuel pump.
For more information about your issue and valuable "Free" downloads that you will need please Click on the links below. Good luck and have a nice day.
How to Clean Motorcycle Carburetor the RIGHT way Evan Fell Motorcycle Works
How to clean motorcycle carburetors
Yamaha XJ700N Service Manual
OEM parts for Yamaha

Btw, I’m available to help over the phone in case u need at

Aug 11, 2011 | 1986 Yamaha XJ 700 X Maxim

1 Answer

Gas problem fixed on my bike. Now the problem is keeping it running. It starts after a few tries but it stalls right out and than it's hard to start back up. I have an 1985 Yamaha 700 Maxium

I wonder what the fuel problem was. It kind of sounds like the idle jet, and/or low speed jet needs to be cleaned. Also while your in there, i would clean all the jets, and check the float bowl height.

Great bike I use to have a 81 XJ650J, hell of a bike, i miss it.

May 01, 2011 | 1985 Yamaha XJ 700 X Maxim

2 Answers

1994 Yamaha Waverunner 3 will idle but wont take throttle

1994 700 cc waverunner when it has run for 15 min engine bucks at full throttle at 3/4 ok i have changer plugs antreated fuel

Aug 01, 2009 | Yamaha 12V Air Pump

1 Answer

Goodman gas pack,stopped working,replaced batterys in thermo,board looks good.can reset temp,switch,will run 5 minutes or so.could jets cause flame to wander? not serviced in 2 years,board,temp,switch and...

What switch are you resetting? If it's a limit or roll out then first check for proper air flow (filter, A/C coil) to see if it's overheating. Then watch the burner flames. When the blower comes on do they change shape, color or waiver? If so you may have a cracked heat exchanger.

Mar 31, 2009 | Goodman Heating & Cooling

Not finding what you are looking for?
Yamaha Waverunner Xl 800 / Xlt 1200 Jet Ski Pwc Cover Logo

Related Topics:

303 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Boating Experts

Colin Stickland
Colin Stickland

Level 3 Expert

22485 Answers


Level 3 Expert

4367 Answers

Jeffrey Turcotte
Jeffrey Turcotte

Level 3 Expert

8984 Answers

Are you a Yamaha Boating Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides