Question about Yamaha 2004 Raptor 660R

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I have a 2003 raptor 660 r an it idles fine but when u give it throttle it starts spurtin an popping. an i have gas getting into oil an overfilling it.

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2 Answers

Starts and idles fine runs half throttle when fuel is applied


Harry, dirty carb or injectors.
Check the attached links,Manuals and guides, Good luck with your Bike
"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."

ATV TROUBLESHOOTING AND MAINTENANCE
ATV Service and Repair Manuals
http://www.carlsalter.com/motorcycle-manuals.asp

Jan 06, 2016 | ATVs

1 Answer

Yamaha raptor 660


clutch burned up...sounds like it. pull the clutch cover off and inspect it.

Apr 29, 2014 | ATVs

1 Answer

Suzuki eiger


The condition is call vapor lock.
Is there any missing heat shield?

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Use a bottle of yellow HEET dry gas to remove any moisture problem in the fuel.

Jan 15, 2014 | ATVs

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

Arctic cat 500 dies when you give it gas but idles fine!


You still have a carb issue, doesnt take much trash to chock it out when giving throttle. if you done the carb clean twice, try seafoam, does pretty good at cleaning the carbon out. use it as directed while running. it will smoke bad while preforming this proceedure so dont panic whens it smokes the neighborhood out.

Apr 07, 2013 | Arctic Cat 2007 500 4x4

1 Answer

Raptor 660 starting problem...new plug, new hoses, new oil, new radiator, rebuilt water pump, rebuilt thermostat, cleaned carb, cleaned all jets, cleaned petcock, cleaned fuel filter, turns over fine,...


Hey Josh,
Cleaning a carb is a little more that most people realize..it takes someone with knowledge and training to really do one right... take it to a professional..

Jun 23, 2017 | Yamaha 2010 Raptor 90

2 Answers

06 kodiak sputtering.


Adjust the fuel idle and the accelerator cable.

Jul 27, 2009 | RTO 200cc Full Size Four Wheeler ATV

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