Yamaha Grizzly 660 Auto 4x4 - Answered Questions & Fixed Issues

NO...

1. Check the INTAKE valve clearance!!!! 2. Check for an air leak 3. Install a new spark plug and air filter!! 4. Check the compression.. 5. Have the carb professionally cleaned and set!! >> Once you have sone all these steps.. repost to me if this did not fix it!!

let the bear out change the gas, check the timing

If the battery is ok then I'd guess it may be the starter relay or fuse that 'popped'. Good luck!

I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manual works fine .

I take help from online websites that have this service like helping in repair some like reliable-store have instant help.. others are a bit slow which I don't prefer... rest is up to u.. U can also get free manuals

There isn't one. You have to put one in- line

If you have not done any wiring repairs and this problem has just seemed to have developed , then I am guessing you have a live wire that is touching another wire or bare metal of the frame , handlebars or some wires are plugged into a wrong connection ! You can search the internet for a wiring diagram for your bike and should be able to find one for free ,but it will cost you time ! try a Yamaha motorcycle site where members have open forums or use google images just type in your bikes info model etc and add wiring diagram ! But if you own a motorcycle I would strongly advise you to purchase a workshop manual (it does not have to be a genuine Yamaha manual ) as there are manuals for most bikes and the reality is that you should be able to make a huge savings on maintenance and DIY repairs, adjustments etc and with the full wiring diagram that you can follow and relate to will simplify any wiring problems in the future .

check fuse and connections

Check brakes to ensure all are fully open.

Yamaha Grizzly 660 2002 2008 get one of these..If you are going to try the repair yourself.... .this is serious, .... there MIGHT be damaged components that need to be inspected by a professional.

Er-1 ECU internal malfunction (output signal error) No signals are received from the ECU.

Do you mean the crankshaft? ...... 600 = Bore and stroke =95 mm by 84 mm 660 = Bore and stroke = 100 mm by 84 mm.. The stroke is the biggie..and they are the same!!.....BUT the rod length must to be exactly the same.. The bore doesn't matter.....rod small end ID must be the same..NOW >> .....if the crank journals are the same size...something that will have to be measured..You need a both crankshafts "in hand" to do some specific measuring.. shaft lengths,shaft o.d.'s.. threads, etc.. if they match..go for it..

you cant connect all the wires, 2 let it start and 2 kill the ignition.

Sounds like you have a stuck float needle in the carbs (2). Usually after a few days with gas in the carb they will free up, you could 'knock' on the carbs with the plastic end of a screwdriver to help free them up. If not, turn off fuel, drain the carbs and fill them with carb cleaner for 24 hours. Redrain, attach fuel lines and turn the gas back on. If still no start it's time for a rebuild...

sounds like your reverse sensor is bad and the cdi limits rpms while in reverse as a safety thing.

could be a bad key switch, doesnt it have a kill switch you can use also to stop it?

Most likely a switch issue. there is a switch in the brake handle as well.

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