Category Archives: ATV Repair and Maintenance
cv boot question?
’05 Sportsman 800EFI ECU relocation for better rad airflow?
Bought an ’05 Sportsman 800EFI for a song because previous owner wasn’t very handy and couldn’t afford to have some needed work done. Full fluids change, brake bleed, new front wheel bearings, new style flex exhaust, exhaust wrap, heat shielding, new plugs and she’s been running like the beast it is until recent heat wave.
I knew these models suffered from some heat issues and have experienced it running hot, especially climbing steep hills in mid 90’s we’re seeing now. Nothing dangerous but definitely hotter than I want. I installed a new tstat and thermistor after testing existing ones and not happy with results, added quadovator tstat housing and temp gauge along with fan override switch, which both helped piece of mind and cooling….but want even more cooling for better longevity and one last step before I replace fuel pump to help with "hot gas tank fuel pump failure" syndrome I’ve had two times.
After doing rad flush and refill with water and water wetter, I was cleaning the radiator and realized the ecu is placed in what I consider the worst possible place…right in front of radiator blocking air flow. My thought is to fab a couple of aluminum brackets to rotate the ecu up and out of the way of the rad. Then cut the fake grill off the plastic trim piece and fab up some metal mesh on it to get better airflow in from the top (currently only the lower section has mesh). To anyone who has done this or has opinions on any issues this may cause I’d appreciate your input. Also, do I need to maintain ground for proper function?
Thanks for your help,
JCIII
’05 Sportsman 800EFI ECU relocation for better rad airflow?
Bought an ’05 Sportsman 800EFI for a song because previous owner wasn’t very handy and couldn’t afford to have some needed work done. Full fluids change, brake bleed, new front wheel bearings, new style flex exhaust, exhaust wrap, heat shielding, new plugs and she’s been running like the beast it is until recent heat wave.
I knew these models suffered from some heat issues and have experienced it running hot, especially climbing steep hills in mid 90’s we’re seeing now. Nothing dangerous but definitely hotter than I want. I installed a new tstat and thermistor after testing existing ones and not happy with results, added quadovator tstat housing and temp gauge along with fan override switch, which both helped piece of mind and cooling….but want even more cooling for better longevity and one last step before I replace fuel pump to help with "hot gas tank fuel pump failure" syndrome I’ve had two times.
After doing rad flush and refill with water and water wetter, I was cleaning the radiator and realized the ecu is placed in what I consider the worst possible place…right in front of radiator blocking air flow. My thought is to fab a couple of aluminum brackets to rotate the ecu up and out of the way of the rad. Then cut the fake grill off the plastic trim piece and fab up some metal mesh on it to get better airflow in from the top (currently only the lower section has mesh). To anyone who has done this or has opinions on any issues this may cause I’d appreciate your input. Also, do I need to maintain ground for proper function?
Thanks for your help,
JCIII
2012 Polaris Outlaw 90 CDI
Is this a bad CDI box?
97 sportsman 4wd
I have a 97 Polaris sportsman 500 which has a problem with 4wd. When I bought it a few months a go the wires going down to the 4wd hub on the right side had been ripped out which I managed to repair but when I push the 4wd switch I get nothing.
I have tested the switch operation for continuity with a meter on the grey and grey/white wires and I am getting a good circuit (0.03ohms) when the switch is pressed so I know that is good. I have had a look at the wiring diagram but I’m struggling to see how it all works.
There are 4 wires to the switch, the grey + grey white for the switch operation, brown for ground and there is also a yellow wire. I assume this should be ignition voltage but I get nothing there and on tracing the wire through the harness it joins into the grey/white wire!?
Any ideas on this would be greatly appreciated.
new engine new snorkels
Need Help..chasing ignition/electric problem for a year
Transmission drain plug leak, thread
Any ideas??
Thanks!!!
Transmission drain plug leak, thread
Any ideas??
Thanks!!!