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By crankin
I have a 1997 Yamaha Big Bear 350 4x4. It used to start right up. Then all of a sudden it wouldn't crank. I have a schematic for it so I started tracing the problem. I had no power at the starter solenoid. According to the schematic the power comes from the neutral switch and through the starter circuit cut out relay. I cannot locate the cut out relay on this machine.. If I apply power to the relay it will crank with the start button.
The neutral switch is hard to get to with all the brackets on this thing. I did find out from all my research that if I apply the rear brake lever it will start.
Does anybody know if the cut out relay exists and where it might be found?
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By harryjr
hello everybody my name is Harry jr and i recently picked up a 90's Yamaha moto4 225 i beleive and neede a starter was all he said ( i know right ) thats what they all say
anyway i picked up a starter and installed it and when it is crankling it sounds as if it is not turning over freely as i9f there was a one way bearing not worrking correctly so pulled with recoil and it pulled back so hard i ripped out of my hand so hard it actually hurt now i have pulled and kicked a lot of bikes and such but never felt anything quite like this you can hear it try and fire and kick back but still acts as though somthing holding it back does that make any sense to anybody is it flywheel key , or valves wauyout any help would be great i picked tow of these up for $100 and tring to fix so we can ride as a family thank you in advance.
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By BenJammin
I did a compression test on my 2005 Bombardier Traxter 650 CVT and it's 75 PSI. service manual only talks about leak down test. No specification for engine compression the manual. What does 75 PSI tell me? Thank in advance.
A little history of this machine. 640 miles. Picked it up about 2 years ago, not running. Probably the computer. Tested all circuits and confirm it was the computer. Long story short, I watched a Youtube video and fixed the computer. ATV now started and runs. BUT, it tops out 20 MPH. I cleaned the carb 3 times also using a Mikuni carb kit after the second time. Slide in carb is going up and down. Only adjustment for fuel is at 1.5 turns out. NGK Sparkplug had soot on main part but brown on the electrode. Champion sparkplug is brown. I check CVT clutches and they both appear to engage like they suppose to. Checked valve clearance it's 0.00, I can't get any feeler gauges in-between. I check timing chain I believe it's in the correct position and hasn't skipped. I removed muffler plug and drilled into muffler to try and make sure it wasn't plugged.
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By joshua91673
hi every one .anyone out there my issue is my kick start wont stay out i have to have some one pull it out. it pull out easy just wont stay out to kick it over .kicks over and starts no problem
also does this quad have a ajust mint for the rear spring .it sags when i get on it .or is this normal . thanks guys for your time
first post
josh ohio
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By n4cer26
Just bought a non-running 425 Magnum 6x6. Guy said previous owner had motor rebuilt (3 years ago or so.) It reportedly ran great but recently the electric start began failing and he put a new recoil on it which he broke immediately.
I get it home and put a new recoil on it and the pull is incredibly hard....so much so that I think I'm going to break the new recoil assembly. I also installed a new starter which won't roll it over either.
I'm thinking maybe a hydro-locked situation so I pull the plug and the motor rolls over fine with both pull start and electric start. The cylinder was dry however.
Checked the valve lash and it was right on at .0006".
Checked the compression relief spring on the end of the cam and the spring was strong and keeps the metal piece against the dowel like it should. The cam lobes look good from what I can see.
I have a small camera that I dropped into the cylinder. Could t get a pic of the entire chamber because of the angled engine but there are marks on the center piston and a couple of grooves once side of the piston top. I will include the photo.
Anyway....I'm at a total loss at this point. Not sure how to proceed and diagnose. Would sure appreciate anyone's help who might know what the heck is going on! I was able to get it to turn over about 5 times with electric start with compression tester installed which read 145 lbs. I don't know what else to do!
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