2018 Yamaha VIKING (YU700, EPS)
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By Chas
When traveling in the 40 mph range and throttle is released machine starts surging instead of a gradual slow down any help would be appreciated as dealer is clueless
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By A P
Hi
I have a 2022 hisun sector eps 550. 30amp fuse is blown for eps. Checked the motor and it’s fine. Opened up the controller and found a bad diode. Dealer wanted 500$ for the controller. Just posting this in case it helps someone. I couldn’t read numbers from the old one so just took a guess and replaced it with a 100v 3amp diode.
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By Jon Spruill
Hey Guys, I have been chasing a stalling condition for about two weeks now. The bike will crank up and idle fine, then after about 20 seconds it will fall on its face and stall. It happens at both idle and while running at various rpms. You can turn the key off, turn it back on and it will fire right back up without trouble. I have verified spark on both cylinders with a spark tester. I have also added an inline fuel filter, and pulled the injectors to verify proper pulse on each. Things I have replaced - (relearn procedure performed after each component replaced): spark plugs, ECU, relay/fuse box, fuel pump, & throttle position sensor - all with no improvement of the condition. The only warning light I get when the condition occurs is the oil lamp. The bike only has 14 miles. I am at a loss and appreciate any help and suggestions! Thanks
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By LarryLarryQuiteRepairy
Hello,
Background: Bought a used 2012 700, added 2 small LED lights, wiring for a sprayer and changed front CV axles.
Had no electrical issues until recently. The old battery stopped charging so we got a new one, Rhino still wouldn't charge it.
-Started next day, drove 15-20min, then out of nowhere the check engine light came on and temp too. 4WD started to automatically engage and disengage repeatedly. Charging display started jumping all around between 11 to 13 to 15v.
-Relays, fuses, and battery connections seemed good.
-Continuity on rectifier would jump btwn OL and 00.0
-Rectifier wires from stator all read 20-21v at idle
-Rectifier diode test had 1 bad reading. So, I replaced it with a new one (but still using original plugs)
Started it up, still shows no change (12.1v idle, 12.8 with some RPM)
Also, I feel like now I maybe also smell burning plastic?
Does anyone have experience with this problem or have a recommendation of where to go next?
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By Hugh
My 2018 Hisun sector crew engine cut off after about 15 minutes run. There is no indicator of what is wrong, no error code just die and won't restart until it cool down. I notice that the fan is not running but the temp indicator is on low temp, no overheat indicator. I checked the radiator fluid, it is cool to touch.
Cooling fans are working, I can hear it running once awhile if I can get the engine warm up enough. Thank you for all the help.
Hugh
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