Question about Yamaha 12V Air Pump

1 Answer

2001 Yamaha 1200 XLT seems to have engine locked up

The engine seems to be lockup and not sure if engine or pump is the problem. Engine had teaspoon of oil in each cylinder when it was stored. Had all the spark plugs out and sill can not turn engine over. Tryed to turn the output shaft with no avail. Battery is good and starter seems to strike the fllywheel hard. Not sure how to sperate the engine form the pump to see which is the problem. Can not understand why the engine ran fine when put away and now it will not turn over.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that gotĀ 5 achievements.


    An expert who has answered 200 questions.


    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 207 Answers

You can take the whole pump *** out from the back of the ski you will see the main bolts at 2,5,8 and 11 oclock there are two sets of them one on the nozzle and a set on the pump take all of the steering cable bolts out first and the reverse cable as well once you get the nozzle off the pump assembly will come out complete that way u can find out if it is a impellar bearing seized that will lock your whole motor if you need a break down go to riva yamaha and go to origanal parts finde4r and pick your ski it will help

Posted on Jul 09, 2009

1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that 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.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

2002 Xlt 800 runs great on the lift, then bogs and dies under throttle in water

it is possible that it is a carby problem or pump diaphragm
the problem indicates insufficient fuel when under load from the pump ( not under load when out of the water)

Jul 10, 2016 | Covercraft Personal Watercraft Cover -...

1 Answer

Why doenst my 2001 xlt 1200 yamaha move in the water the engine works but theres no thrust in the jet

Check the impellor and shaft splines haven't sheared including the short coupler shaft behind the engine as ive had this before !!

Sep 06, 2014 | Boating

1 Answer

Relay replace starter

if its xlt 1200 its inside the big black electric box at rear of engine ! unbolt it and remove the back cover !

Jan 10, 2014 | Yamaha Waverunner Xl 800 / Xlt 1200 Jet...

1 Answer

My 95 yamaha waverunner 3 will crank but won't stay ctanked what's going on?

check connections clean and no breaks in wires , check solinoid and starter in good order !

Jun 22, 2013 | Covercraft Personal Watercraft Cover -...

1 Answer


no idea on price but this sort of thing is used in salt water so although a new set of rings and a quick hone of the bore will sort it and maybe a new crank bearing as its obvious someone didnt put oil in with the petrol but the problem i have had with a lot of these fun machines is that getting the engine apart after salt water use is ?well lets just say difficult

Apr 12, 2012 | Covercraft Personal Watercraft Cover -...

2 Answers

Xlt 1200 2005 jetski runs well for about 5 mins then stops , it wont start for about another 5 mins.

Not sure but what work i have done on these machines always seem to involve the exhaust system and the water it contains

Dec 18, 2011 | Yamaha Boating

1 Answer

Adjustment on oil injection on xl 800

There is no adjustment on the oil pump it is a steady direct drive/flow system. If the oil pump is not working correctly you have two options. One is to replace it for around $400. The other is to remove the pump, cover the opening with an aluminum plate, and pre-mix your oil and gas at a 50:1 mixture.

Jul 21, 2011 | Covercraft Personal Watercraft Cover -...

1 Answer

Manual for wave runner 1991 WR650P LX I hope this link helps, this should tell you all you need to know. Thanks for using fixya, mike

Jun 08, 2011 | Covercraft Personal Watercraft Cover -...

2 Answers

Overheating YAMAHA XLT 1200 jet ski

you may have something clogged in a water passage but more than likley u have a bad sensor the sensor is located on the main exhuast if you go on the right side of the ski and look in the engine compartment it will be located at 9 oclock u will see it sticking out of the exhuast with one wire comming out after u run the ski and the buzzer goes off pull the seat and see if the engine is really hot if u can not touch it will be hot but it has to be very hot for the sensor to pick it up if u can touch the motor and exhuast it is a bad sensor

Jul 05, 2009 | Yamaha 12V Air Pump

Not finding what you are looking for?
Yamaha 12V Air Pump Logo

Related Topics:

1,063 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Water Sport Experts


Level 3 Expert

75725 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22114 Answers

Piyal Perera
Piyal Perera

Level 3 Expert

528 Answers

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

Answer questions

Manuals & User Guides