Question about Yamaha 12V Air Pump

1 Answer

My 2005 Yamaha FX HO Waverunner runs smoothly, but will only go 38 to 40 mph. The RPM Limiter is off, intake is clear, oil level is good and air cleaner is ok. Should I replace the spark plugs?

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Champion:

    An expert who has answered 200 questions.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

  • Expert
  • 207 Answers

Yes yes yes the new yamahas foul plugs like crazy i dont know if it is a valve defect or what but you will be changing them every year one trick i have been doing to my coustmers watercraft and has been working well insead of ngk cr9eb plugs use a cr8eb it is a hotter plug there for it will burn better and no it will not hurt your ski trust me i have over 15 yrs ex and 6 in r&d research and design

Posted on Jul 08, 2009

  • eliezer Mar 13, 2013

    Is this plug CR8EB for the 160 hp engine?

×

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

It Runs but has very little power,quits often,if you give it to much throttle it bogs down


Robert, First try new plugs, check fuel filter, sounds like it could be carburetor/injector issue, dirt,plugged jet, etc. Remove and clean/rebuild carb./injector.
Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
XLT1200 Bogs down
Thread 2004 FX HO ECU Problem
Waverunner Loses Power and Wont go Above 35 mph Solution
https://answers.yahoo.com/question/index?qid=20080525091900AATkgJh

May 23, 2016 | Yamaha 2004 WaveRunner Superjet Base

1 Answer

Starts and runs and RPMs are good but it won't go above 5 MPH. Checked intake and I have the rooster tail of water but no speed


you may have to check the pump unit for obstruction
the impellers are known to wear from abrasion from sand in the water and not operate efficiently.

May 29, 2015 | Yamaha 2011 WaveRunner FX Cruiser SHO

1 Answer

2004 waverunner fx cruiser, ran great last time out. Now hard to start and wont run on high speed. Nothing over 6 mph.


How old is the fuel? Ethanol causes major problems if left too long. You may need to empty the fuel and clean out the fuel system. Try changing the fuel filter and adding some seafoam to the fuel and running seafoam thru the fuel system. Hopoe this helps.

Mar 15, 2014 | Covercraft UltraTech Custom PWC Jet Ski...

1 Answer

Waverunner is abnormally slow accelerating initially, but will finally get up to normal speed


Pull your air filter out and also replace plugs. Overtime the filter will become saturated with oil and believe it or not the plugs can cause about a 10 mph drop if there going bad. But make sure your pump and impeller are not damaged also

Sep 18, 2013 | Yamaha 2004 WaveRunner FX Cruiser

1 Answer

Warning and oil lights come on at 6000rpm


check wire connections are clean and check the oil sencer !

Jul 05, 2012 | Yamaha Boating

1 Answer

Yamaha waverunner won't idle and losing power


L stands for limp mode
it is a mode that the ECM selects to prevent serious damage to the engine ( from you lack of oil )
have the fault codes read then reset with the scan tool

Mar 31, 2017 | Water Sport

1 Answer

2004 fx CRUISER ho WAVERUNNER DOESNT WANT TO IDLE OR RUN AT TOP S


did you mean 900 cause 9000 is overrived and the engine may be blown

Jul 08, 2010 | Boating

2 Answers

YAMAHA FX 1100 HO 2006 ROUGH IDLE WAVERUNNER


I have a Yamaha fx 1100 that starts real slowly the battery is fully charged but the bike sounds like its not got alot of power going to the starter can anyone help solve this also battery terminals are clean and not corroded

Jul 28, 2009 | Yamaha 12V Air Pump

1 Answer

THE OIL LIGHT STAYS LIT AND BIKE RUNS ON A LIMITER TZR2501991


Hi and welcome to FixYa,

Initially, pls the Oil Light indicates that the level of 2T oil in the reservoir is below minimum level, pls add.

I could only think of 2 possible limiters:
  • rev limiter since the 2T oil is lit hence the ignition will cutoff at a lower RPM; and/or
  • if it is a Japan domestic model, then a speed limiter designed to warn and cutoff the engine ignition anywhere from 80 to 100 kph.
If you are intending to bypass the cutoff, in some versions, there is a wire from the speed indicator light that goes to the CDI unit. Removing said wire/connector would disable the speed limiter.

Good luck and Thank you for using FixYa. Happy Holidays.

Dec 21, 2008 | 1991 Yamaha TZR 250 R

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

Related Topics:

1,787 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Water Sport Experts

yadayada
yadayada

Level 3 Expert

75797 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

Loading...