Why does my Yamaha Grizzly 660 backfire?

Backfiring usally occurs when the engine is running lean, or the intake valve(s) are not fully closed during the combustion stroke. Was the bike backfiring before you did your maint.? If not – try removing the uni filter and see if the problem goes away. If it does the engine is/was running too lean.

Is a 2002 Yamaha Grizzly 660 fuel injected?

The recent millennia saw the rise of V-belt transmission, four-stroke, fuel injection, and the Yamaha Grizzly 660. Following closely behind the Raptor, this almost-big-bore machine addressed its precursor’s shortcomings when it entered the ATV scene in 2002.

How do you adjust the idle on a Yamaha Grizzly 660?

The screw is facing outward; its a bigger round screw with a phillips head in the middle. Turn this screw counter-clockwise to lower the idle, clockwise to raise it.

What was first year for Yamaha Grizzly?

Introduced in 2007, the Yamaha Grizzly 700 is regarded as the Japanese firm’s most powerful ATV. Its stronghold in the market is attributed to its practical yet excellent features. Its Ultramatic transmission, 686cc engine, and modest but rebellious look put it in a class of its own.

How fast does a Yamaha Grizzly go?

Yamaha Grizzly 700 Top Speed The top speed of a stock Yamaha Grizzly 700 is 64 mph. Some owners claim to hit 70 mph with their 2015 Yamaha Grizzly 700.

What size battery does a Yamaha Grizzly 660 take?

YTX20L-BS
Chrome Battery YTX20L-BS (20L-BS 12 Volt,18 Ah, 270 CCA) Atv Battery for Yamaha 660cc Yfm660fa Grizzly 2005.

How do you tell what year a Yamaha Grizzly is?

Actually, the 10th digit (number or letter) of the VIN number is the year of the ATV. You can use the chart below to determine the year.

How to troubleshoot a Yamaha 660 Grizzly?

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.

What to do if your Grizzly 660 runs out of fuel?

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.

What to do if your Yamaha Grizzly is not running?

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.

What kind of engine does a Yamaha Grizzly have?

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.

Why does my Yamaha Grizzly 660 backfire?

Backfiring usally occurs when the engine is running lean, or the intake valve(s) are not fully closed during the combustion stroke. Was the bike backfiring before you did your maint.? If not – try removing the uni filter and see if the problem goes away. If it does the engine is/was running too lean.

How do you test a stator on a Grizzly 660?

Put the multimeter’s positive lead into each of the three terminals in the stator cable’s connector. The multimeter should read OL for open loop, which indicates the circuit is open and hasn’t shorted to ground. If the reading shows a short has occurred, the stator has failed and must be replaced.

Does a grizzly 660 have transmission fluid?

2006 Yamaha Grizzly 660 Transmission & Differential Fluid Enthusiasts sometimes overlook ATV transmission and differential maintenance. Using a properly formulated transmission fluid or differential fluid for your Yamaha Grizzly 660 can protect your ATV from costly problems down the road.

What does the overdrive button on a four wheeler do?

Overdrive is a special gear in cars and its overall function is to reduce the burden on a car engine. This means that your car can cruise at faster speeds but in a low RPM. Overall the overdrive gear will focus on producing faster wheel rotations in a minute.

What does override mean in a Can Am?

The override button on your multi-function switch, overrides the rpm limiter function when riding in reverse, so you are able to have full throttle, otherwise the rpm is limited when driving in reverse.

What is the repair manual for a Yamaha Grizzly 660?

If you work on your Yamaha Grizzly 660 yourself, it’s imperative to have an ATV repair manual. This book of repair instructions illustrates and documents how to maintain and service your all-terrain vehicle. The factory service manual helps you to make sense of the repairs needed on your 4-wheeler. What is an ATV Repair Manual?

What should I do if my Grizzly 660 is not running?

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.

What should I do if my Yamaha Grizzly wont start?

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.

What is the EBU warning on Yamaha Ultramatic Grizzly 660?

EBU00039 CONTROL FUNCTIONS WARNING Indicates a potential hazard that could result in serious injury or death. EBU00942 Main switch Functions of the respective switch positions are as follows: 1.

If you work on your Yamaha Grizzly 660 yourself, it’s imperative to have an ATV repair manual. This book of repair instructions illustrates and documents how to maintain and service your all-terrain vehicle. The factory service manual helps you to make sense of the repairs needed on your 4-wheeler. What is an ATV Repair Manual?

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.

How to troubleshoot Yamaha Grizzly 700 starting problems?

While your starter problem might be something incredibly simple, you might need a new battery or a starter relay. Check out our Yamaha Grizzly 700 electrical parts diagram and starting motor parts diagram for reference.

EBU00039 CONTROL FUNCTIONS WARNING Indicates a potential hazard that could result in serious injury or death. EBU00942 Main switch Functions of the respective switch positions are as follows: 1.