'82 Yamaha 650 maxim trouble
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millerboy

United States

#21 Apr 13, 2013
My yamaha 650 has a problem dieing at stop sighs and when I first start it ne ideas
mizz

Conroe, TX

#22 Jun 22, 2013
how many relays on the wiring harnest has and what each they do
Sparky

Auburn, NY

#23 Oct 15, 2013
82 750 maxim
dropped the bike and the gasoline ran out of the air box. looked for a long time till I found my problem.
The fuel petcock on the gas tank has a fuel pump diaphram in the back side of it, this diaphram wore out and a hole developed in it. the gas just ran thru the petcock, thru the hole in the diaphram and down the vacuum hose into the #3 carb, constantly flooding the engine.When I tipped it over, gasoline ran thru the carb, and out into the air cleaners. pulled the tank and rebuilt the petcock, works well now!
Devin

Thorp, WI

#24 Mar 18, 2014
My 1982 yamaha Maxim 650 Will not try to turn over. I just got it and it needed a new battery i put it in all the lights come on like they should but when i have it on run with the kick stand up and in nutral and i push the start putton it wont try to turn over and the oil light comes on when i bought it the guy had it running and killed it and it started right up again on a trickle charger why wont it start now?
cale

United States

#25 Apr 27, 2014
I have an 82 Yamaha 650 maxim, and was wondering how to get to my secondary drive to change the oil? Do I take off the whole case my shifter comes out of?
cale

United States

#26 Apr 27, 2014
Devin wrote:
My 1982 yamaha Maxim 650 Will not try to turn over. I just got it and it needed a new battery i put it in all the lights come on like they should but when i have it on run with the kick stand up and in nutral and i push the start putton it wont try to turn over and the oil light comes on when i bought it the guy had it running and killed it and it started right up again on a trickle charger why wont it start now?
hold your clutch
stan

Glen Burnie, MD

#27 Jun 28, 2014
Todd wrote:
I have a 650 maxim and was riding it home from getting it's inspection and the clutch got stuck and now it can only move from 4th to 5th gear...hoping it's just a spring...anyone have this problem before??
did you find a solution for this
Jayskie

Sacramento, CA

#29 Nov 20, 2014
I have a 82 650 maxim custom bobber. So right now I'm having trouble turning it on due to a leak that I do not know. I'm hoping someone can help me explain. It's coming out the bottom left Yamaha cover. Please please help me
bossnasty

Louisville, OH

#30 Feb 8, 2016
david wrote:
I also have a yamaha 650 maxim. My oil light comes on when i try and start my bike as well. The thing wont turn over at all. any ideas?
been helping my friend put together an 82 maxim 650 the oil light came on when we tried to start it up and we kept adding more oil. we checked the oil level sensor on the bottom of the sump and found it goes to a fuse box and when we juggled the fuse box the oil light went off. theres a couple other fuses that are loose too might want to look into that
Lot

Fargo, ND

#31 Jun 25, 2016
My maxim 650 blew out a bolt on the top of the cylinder cover and now leaks oil from there. How can I fix it?
Paul Kainer

Canada

#32 Jul 31, 2016
John H wrote:
I recently moved my bike 6.5 hours on its side in the back of my pick up truck. When I started it a couple of days later Gas and all of the oil came out of the vent tube out the air box. I fugured it was just from it laying on its side. Then I changed the oil, oil filter, and air filter. Then when I turned it over it started for a second then backfired and died. I kept on turning it over and gas and oil came out of the same spot. I took off my carbs and cleaned them and tested to see if they were leaking and they weren't and my petcock is working fine but I am afraid to spend another $40 on oil and an air filter. would anyone have any other suggestions? or am I ready to try it again?
Ok i have same issue. There are two hoses on fuel petcock. One goes to intake boot and one to fuel rail that feeds carb bowls. The origional purpose from what i figured out is to provide better fuel flow once engine is running. But if the mechanism in fuel shut off is not correct then raw fuel is being pushed past rings in that one cylinder and overfills crankcase oil out breather tube. I did find a vid somewhere on youtube showing a guy rebuilding this style fuel cock that yamaha used. There is a kit you can buy and now I have to try and find it again to get one myself! To test this theory feel the exhaust pipe on cylinder that has hose go directly to intake boot. If not burning fuel it will be much cooler than other exhaust pipes. If correct then use aclampto gently but firmly pinch that same line to intake boot. If that cylinder starts to clear up and fire the exhaust will get hot like other cylinders. Then you now know your issue is not your carbs but your fuelcock on your gas tank.
I hope this helps someone at least.
Paul templeton

Phoenix, AZ

#33 Oct 9, 2016
I was going down the road and the bike just died I tried priming it so I know it's getting gas

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