I have 2002 yamaha raptor and it wont start. It has a new battery and a new spark plug. Its getting spark and for some reason its not getting fuel. it wont even turn over anymore. ive had it running numerous times with no problems but now for some reason its not even turning over.at all. Can someone please help its bone stock

overhaul the carby of fix the injector problem

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.

Remove the air filter and clean or replace it. Get a can of spray starter fluid and spray into the carb before mounting the filter. Chances are the new spark plug is wet from gas.

i am having the same problem with my 660r if i can figure it out on mine i will let you know for yours but if any one else can help us both that would be cool 2 lol

It is definitely frustrating when you can't get your scooter or moped started. The first thing you'll need to do is to narrow down the problem. In order for your gas scooter to start, it really only needs 3 things:

1.
Your scooter needs to spark at the correct time.
2.
Your engine needs the proper fuel/air mixture and exhaust flow.
3.
You need sufficient engine compression.

Top 9 Reasons Why Your Scooter Won't Start:

1.
Try depressing the brake handle when starting.
2. The battery has not been charged.
3. The battery is hooked up wrong. This is often the reason for blown fuses.
4. There isn't enough gas or two-stroke oil in the scooter.
5. There is a gas flow problem, especially on the Euro Scooter or Yamaha models.
6. The spark plug wire is not connected.
7. A low battery or bad relay can cause the scooter to only start by using the kick starter.
8. There is no spark to the spark plug. The coil is bad and needs to be replaced.
9. Turn the key to the "on" position.

Try intoducing a small amount of fuel (half a teaspoon) of fuel through plug hole, refit plug & try, if it fires it will show fuel problem up. Also, is the plug wet when you remove it after trying to start? If it's very wet, may just be badly flooded. If not wet, check for fuel filter & if it's blocked, check air filter etc, hope this helps.

Check air filter, fuel filter and carb jets...
Check exhaust for obstructions and your plug wires.