Question about Yamaha 2005 Grizzly 660 Auto 4x4
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 flow. The starter is working properly, it will crank over the engine. I have replaced the spark plug, topped off the gas, removed the spark plug to ensure that there is a spark by watching for a spark when I pressed the starter button, reinserted the spark plug and tried again. Next I thought that it could be a sticky carburator, I took the air filter off and sprayed carb cleaner into the carburator, it cranked over and ran for about 1 sec then died. I did notice that when I took the spark plug off it was dry. I then thought that the carburator wasn't getting gas. I checked the shutoff/run/reserve switch to ensure that it was operating properly by pulling off the fuel line and ensuring a proper flow. Once I noticed a good flow I reinserted the tube onto the carburator. After all of that the darn thing still will not start. Do have any idea's? Thanks for the time and support.
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Posted on Jan 02, 2017
I have been working on my carb today,the pipe from the bottom of the carb should just run down by the bottom of the swinging arm,there should be another pipe from the pipe on the left side of the carb just above the fuel intake which also runs down to the swinging arm and connect to nothing.
Posted on May 30, 2009
Take the carburetor apart again, remove the main and idle jets and idle mix screw, plus the float and needle valve. The main jet holds an 'emulsion tube' in--look inside where the slide valve moves, you should see a short brass tube projecting out of the bottom. Carefully push down on that tube with a plastic rod or wooden dowel, it should drop out the hole where the main jet was. Chances are that the tube is dirty and needs to be cleaned--look carefully at the series of small holes drilled into the sides of the tube. These small holes deliver air which is mixed into the fuel passed through the main jet. That air comes from a small hole just inside the intake side of the carburetor. The long needle that sticks out of the slide bottom controls low to mid-range speed fuel-mixture. Check that the 'C' clip on the top end of the needle is in the center groove and that the retainer spring is pressed down the 'C' clip. Now soak the whole carburetor with spray cleaner, then blow out all passages with compressed air. Don't soak the rubber-tipped needle valve from under the float. On reassembly, set the idle mix screw 1-1/2 to 2 turns CCW from CW stop. Adjust for best idle after you get it running and warmed up. I hope this long winded explanation helps!
Posted on Aug 14, 2009
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
SOURCE: 79 yamaha XS 750 crank no start
well here goes your problem probably in the float bowl area water sediment blocked low speed jets if you do not want to do a complete tearmore down just clean the jets and float bowl.
Use a carb cleaner soak the jets make sure you can see through them the small low speed jets specially.
if you have access to air blow the jets clean.
spray any passage ways with carb cleaner reassemble good luck.
Posted on May 07, 2010
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