Machine sat and had multiple rodent chews thru out the wiring that we fixed. Also replaced the Following: ECU, Coil and Plug Wire, small Control Box that contains fuses and relays. Pick Up coil test at 219 ohms which is typically good on most machines but i can't find the specific manual on this thing to get the spec. Battery good, cranks fine but the fuel pump doesn't prime or run and no spark. Tested pump with direct 12volts and it works. If we supply a ground to the pump it primes and works but still no spark. We have traced all wiring including grounding and all is good. Tested key switch. I has (4) positions. 1 - off, 2 - does nothing, 3 - powers up everything (lighting and odometer and powers ECU, 4 - starts engine. The key switch only has 3 wires. 12v in from battery and 2 - 12v out which is power to the system and send 12v to starter relay coil.
Are these electrical systems actually switching the grounds on and off vs the traditional switching the 12v+ on and off.
at my wits end with this thing.
Also when we figure this problem out we will post the solution. seems 90% of people that ask for help on these forums, never post the fix which make this pointless.
By Regretting my choices
Hello. I purchased this unit as a "non runner" with the intent of using the frame to build a go-cart, but once I got it home it seemed way to good to part out. The motor cranks over, and I have spark, but no fuel. If I put a little fuel in the cylinder it fires up until that fuel is burnt, then of course it dies. The fuel pump is not running and I have removed the plug and there is no power going to it. I have checked the safety switch on the brake pedal and its fine, I have checked the fuses, all good, but am not sure where to go from here. The shifter is missing on the unit, but the indicator light on the dash shows its in neutral, and the e-brake indicator switch is working as well. I am thinking of jumping power to the fuel pump next to see if it runs and if the motor will start.
What am I missing? What can stop the fuel pump from getting power to it?
This looks to be a pretty common topic and I've had issues with mine overheating since I got it back around the end of 2019. Started running hot again, thermostat was not opening and they sent me a new one. Installed that, burped the system for air all to no avail. Next in line is the water pump to replace, they sent me a water pump and when I got the old one off it was not turning freely to say the least so I'm thinking that could have been my problem. My issue now is getting the slot in the water pump shaft to line up with the tab inside the engine of the machine. Any tricks to doing this? Thanks in advance
By Joe Breaux
Has anyone tried using an external electric water pump on these machines? I watched a video on youtube of one installed on a 1000 cc side by side that had chronic overheating issues in hot weather.. He claimed that after installing a Prius electric automotive pump from junk yard, inline in the inlet hose and bypassing fan temp switch, that the engine never overheated again. .. I am considering trying it on mine...................... Anybody else done this? .................. He did not say if he removed the mechanical pump or not.. would it pump thru that pump?
i have a 2017 cub cadet challenger 750 camo, after a month of nonstop work with the pandemic i was finally getting a chance to ride it. it would not start, the battery was dead, went to charge the battery and noticed a mouse had chewed a yellow wire one of2 going to a block of some kind in battery box, it is tied into the 2 fuse relay breakers attached to the starter relay. there is a red with stripe wire that goes to a harness below the rectifier in engine compartment, it has no power to it with multimeter and the fuse block is getting real hot. other than that the dash lights up, but no readout and the gauges dont cycle, the fuel pump does not start. on the fuel pump i checked the red wires to the cdi and both have contact and are intact but one does not have power when the key is on and there is no spark i tried starting fluid. i have swapped out the cdi from my cousins same year and model, also the ecu and the main relay. i have no idea where to look now. his has broke the shim again and will not start. also i did notice that i wiggled a wire connector going to a sensor on the engine and a couple lights came on on the dash, the stirring wheel one and check engine but only did it once and i cant get it to do it again. i have looked over the harness for anymore damage and have found none.
has anyone seen this problem before, is it wiring? ground? what do i need to check next. the place i bought it has no service the guy said he could only swap parts and try. sent me to another place over an hour from me and that guy on the phone said he was covered up and didnt know when he could look at it so he must be busy lol. besides i dont want to have them charge me $3000 to replace everything on it before they get going.
my advice is do not buy a cub cadet, we thought we were getting a cub cadet and it turns out it is a cheap chinese pos. i still love my cub but wish i had known this before i bought it and i would not have.
any help would be appreciated thanks