Question about Yamaha 2005 Grizzly 660 Auto 4x4

1 Answer

Have a 2005 660 Yamaha Grizzly. The screen that shows hours, gas, gears etc. Is not lighting up. Saw an "E" then it came on a few times now just won't come on at all. Is there a way to check the u

Electrical issues with LCD screen not working.

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 11 Answers

The first thing I would check would be the fuse box. Next, take a look at the the electrical connections for the LCD screen. You've got an off-road toy which most likely is subjected to lots of vibration and occasionally moisture. Do what's necessary to access the back of the dash and check to make sure the electrical connection is still plugged in. If so, unplug it and check for corrosion. According to your description the entire screen is out, so most likely it's not an individual sensor. The bike probably has several electrical ground locations on the frame. Check to ensure they are all clean (bare metal to bare metal) and tight. If it's still not working at this point, you are probably going to need to start looking for broken or grounded wires. You will need a multi-meter to do this properly. If you've never used one before, watch a couple videos on YouTube on how to do an ohms test, then disconnect the battery and test each wire from the LCD screen plug to where ever it terminates.

Finally, it's always possible the screen itself is actually dead. I don't know of a way to test to know one way or another. If you have a friend with the same bike, you can always swap the screen to know for sure.

Good luck!

Posted on Nov 30, 2013

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


Hey Ralph,
This is serious,,, You can pull the right side cover off and see if anything falls out.. SERIOUSLY... there something that is interfering with the primary gears turning.. it could be something lodged in one of the gear teeth,, one of the gear teeth is cracked/broken,,
If you are really good!! at mechanical things, and you have some special tools,,, you MIGHT be able to diagnose the problem..
BUT > I would highly recommend you taking this to a qualified professional.
Motorcycle Service and Repair Manuals

Jun 20, 2017 | Yamaha 2007 Grizzly 450 Auto 4x4

1 Answer

Starts runs for a few mins or a few seconds then shuts off at idle or riding. Starts right back up most of the time

Hi Eugene:
I'd be checking my fuel system.
Flush the carb
Make sure you're using fresh gas
Clean or replace the fuel filter.

Sep 23, 2015 | Yamaha 2013 Grizzly 700 FI Auto 4x4 EPS

2 Answers

Why would my 660 grizzly pop in & out of forward gear, jus whines, jumpin in & Out ???

Grizzly 660 Shifting problem. - Yamaha Grizzly ATV Forum > ... > Grizzly Engine & TransmissionMar 12, 2012 - 4 posts This is a discussion on Grizzly 660 Shifting problem. within the Grizzly Engine ....2005 grizzly 660 gear position sensor problem.

Aug 17, 2015 | Yamaha 2005 Grizzly 660 Auto 4x4

1 Answer

Yamaha grizzly gear engagement

From experience, its one of two things, bent or worn out shift forks or worn out engagement dogs on the gears themselves. A professional job. Does it fall out if you hold the gear shift up or down while driving? Take it to your local professional!!

Jul 22, 2014 | Yamaha 2004 Grizzly 125

1 Answer

Why does my Yamaha grizzly 700 engine brake fail going down hill

If you're in to low a gear, the clutch might be slipping under stress from high revs. You might need a new clutch or stronger springs. Try using a higher gear and use 50% braking.

Jun 21, 2014 | Yamaha 2007 Grizzly 700 FI 4x4 Auto...

1 Answer

Backfires when you try to rev up engine,

check fuel flow and check spark at spark plugs

According to an "ATV Rider" 2009 article, "When the Grizzly was introduced in 1998 as a 600cc machine, the top was blown right off the displacement wars of the time."
It was replaced in 2002 with Yamaha Grizzly 660, an even bigger engine derived from the well-established all-terrain vehicle (ATV) Yamaha Raptor 660R.
Grizzly's 660 cubic centimeter (cc), four-stroke, liquid-cooled single overhead camshaft, five-valve engine performs well in open country, but sometimes it causes serious problems for owners.
Before you call a Grizzly dealer, however, trying a few tricks in your garage can save you a lot of time and money.

Check the fuel level.
Locate the fuel meter indicator on top of the multifunction display.
If it does not work properly, open the fuel tank, and push the Yamaha 660 Grizzly side to side.
Ensure the fuel is not contaminated by water or rust.
If you have not driven your Grizzly 660 for a long time, drain the tank completely, and fill it with a fuel tank cleaner.

Check fuel hoses for cracks or leakage.
The hoses should be soft and simple to bend.
Replace those that show any sign of wear.

Check the compression.
Screw a compression tester into the spark plug hole, and press the electric starter button.
If no compression exists, contact a Yamaha dealer.
Wipe wet or dirty electrodes with a dry cloth.
The spark plug gap should be checked regularly

Correct the spark plug gap.
Measure the gap with a wire thickness gauge.
If necessary, adjust it to 0.8mm using a screwdriver or replace the spark plug.
Use only a Yamaha-specified spark plug.

Check the Yamaha 660 Grizzly's battery.
Operate its electric starter.
If the Grizzly starts quickly, then its battery is in good condition.
If the engine turns slowly, check the battery lead connections, and you may need to change the battery.
If the engine still does not eventually start, your Grizzly is beyond home repair.

Jul 23, 2013 | Yamaha 2005 Grizzly 660 Auto 4x4

2 Answers


It normally means check engine like a check engine light.

Jun 03, 2013 | Yamaha 2005 Grizzly 660 Auto 4x4

1 Answer

My 05 Yamaha Grizzly 660 will not start. In my limited troublshooting practice I looked at FUEL, FIRE and AIR. Here is the fault, the engine will not start. I checked wires/fuses, plugs, fuel lines and air...

Sounds like you have a stuck float needle in the carbs (2). Usually after a few days with gas in the carb they will free up, you could 'knock' on the carbs with the plastic end of a screwdriver to help free them up. If not, turn off fuel, drain the carbs and fill them with carb cleaner for 24 hours. Redrain, attach fuel lines and turn the gas back on. If still no start it's time for a rebuild...

Mar 05, 2017 | Yamaha 2005 Grizzly 660 Auto 4x4

Not finding what you are looking for?
Yamaha 2005 Grizzly 660 Auto 4x4 Logo

378 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha ATVs Experts


Level 3 Expert

75817 Answers

 Scott Tx
Scott Tx

Level 2 Expert

520 Answers

Noel Bennett

Level 1 Expert

24 Answers

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

Answer questions

Manuals & User Guides