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2003 yamaha grizzly 660 leaking fuel from overflow drain hoses how do I fix it

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: 2007 Yamaha grizzly 660 wll run fine, and then

CHECK VALVE CLEARANCES(INTAKES MOSTY) IS IT ONLY HARD TO START AFTER IT HAS BEEN RUNNING(HOT) OR IS IT HARD TO START COLD TOO?

Posted on Apr 30, 2009

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SOURCE: 2008 Yamaha 660 Grizzly???? Help?

try turning your idle down, i have a 98 grizzly 600 and the other day it was cold so i turned the idle up to start it and wen i put it into gear i would drive itself if ur idle screw is in the same place as mine it should be above the engine beside ur left leg turn it left to turn it down wen ur idle is up ur motor is reved to hi wen going into gear hope my advice helps

Posted on Jul 17, 2009

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SOURCE: 2000 yamaha ttr90 fuel leaking out overflow tube

your float is stuck take carburator off and clean wiggle float and it shouldnt leak gas anymore

Posted on Aug 27, 2009

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SOURCE: I have a 2007 Yamaha Grizzly 660. It was running

It sounds like you got some corrosion going on, on the ground side. I would start with the battery cables first and see if they need cleaned up, then go to the connectors and unplug them and clean if necessary and put die-electrical grease in the sockets of the connectors before plugging them back in. I am assuming that the shifter is electrically assisted if there are problems going on with it as well...this is what makes me believe that it is a bad ground due to setting maybe in a damp inviroment.

Posted on Oct 19, 2009

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SOURCE: 2005 grizzly 660 rear drive shafts pop out of the gear box a lot

There should be a circlips at the end of the driveshaft.
That circlips holds the shaft IN the differential parts.

If you have still warranty, let it repair by a dealer. The circlips is maybe INSIDE the differential casing and can thus destroy a lot of parts!

Posted on Nov 01, 2009

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1 Answer

Why won't my grizzly 660 go into neutral so I can start my bike


K, Linkage probably needs adjusted.
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."

2006 GRIZZLY 660 MOD HELP and SHIFTER ISSUES
http://www.yamaha-motor.com/assets/service/manuals/2008/lit-11626-21-03_griz660_all_1498.pdf

Mar 20, 2016 | Yamaha 2004 Grizzly 660 Auto 4x4

1 Answer

2008 Grizzly 450. Starts and idles fine but at about 10 mph why does it start to cut out like a rev limiter?


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2 Answers

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


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

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

1 Answer

Wr250f overflow fuel in carb


Hi, Anonymous and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
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.
03 WR250F Carb Overflow Issue
My carb leaks fuel out of the overflow hose at the bottom of my carb
YAMAHA WR250F Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-wr-owners-manuals

Sep 28, 2012 | 2003 Yamaha WR 250 F

1 Answer

Leaks gas from the carburator.


Hi, Morgan_honda and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
2003 YZ125 Carb Overflow Hose Is Leaking Yamaha 2 Stroke
Oakys Garage How to clean overflowing Carb Carburetor Part 1
YAMAHA YZ125 Owner Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jun 19, 2010 | 2003 Yamaha YZ 125

2 Answers

Water pump problems on 660 grizzly


hi,if you have done all that and it still does it then it is not the problem,it sounds to me like the cooling system is pressurizing,and about the only thing that will do that is a leaking cylinder head gasket,i cant remember what the specs are,check with a yamaha dealer to find the correct psi reading for the cylinder when it is on the compression stroke,from memory should be btween 120-140 psi,but check first,then do a compression test,if the reading is say more than 10%below manufacturers specs then that will more than likely be the cause,,water will find the easiest path seals and hoses are the weak points in the system and thats where it will find its way out,hope this helps...cheers

Apr 30, 2010 | 2006 Yamaha XT 660 R

1 Answer

I have a 2001 yamaha 250 2 stroke fuel leak.


clen ur carburetor bcos it may be full with iron particals

Apr 14, 2010 | 2003 Yamaha YZ 250

1 Answer

I have a 03 Yamaha 660 raptor one of the carbs


Did you reset (adjust)the float inthe float chamber to tht carburator which is leaking ?
You will probabley have to adjust tht float to stop from overflowing in other words we call it flooding.
Check the float pin of wear at the tip.
Hope this helps!

Mar 02, 2010 | 2003 Yamaha TT 600 R

1 Answer

On my 2004 yamaha 660 grizzly there is gas coming out of the overflow tube. What can i do to fix thi. my dad said that i didnt clean the carb enough and that the float is sticking but i cleaned and soaked...


You do have a sticking float. You can test it with the bowl off by moving the float up to shut off the fuel, and down to allow fuel to flow. Look closely at the float needle seat to make sure they aren't damaged.

Sep 03, 2009 | 2004 Yamaha XT 660 R

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