no fan

[rbig1]

well bike was running warm in the small cities. I had added a switch to activate the fan ie. ground it. I cant hear the fan but switch seamed to work till today. stopped where im staying. shut off bike turned switch back on no fan. flipped the switch quite a few times then it would work part of the time I have about 137 miles to get home all highway should cool good enough to get home. any one know what the relay on the 83 looks like. none of them are in there rubber holders any more. any after market relays fit. want to get it fixed fast as want to ride with new friends if I have to will wire in a total wiring circuit temporary

[Neil86]

The relay has 4 wires

2 Red/White, Blue/Green. Blue.

 

Red/whites are power into relay/relay coil

Blue is power out to fan motor

Blue/Green is from relay coil to thermoswitch.

 

If the thermoswitch is still hooked up maybe just try grounding the wire there to

see if the fan runs.

[Prairiehammer]

Rod,

make sure it is a relay problem and not just a flaky switch.

If it is a bad fan relay, any common Bosch type relay should suffice. I presume you removed the wire lead from the thermoswitch and are using your added switch exclusively? Manual operation of the fan ?

[rbig1]

I replaced the relay. I can actually hear the fan run now. the relay had a red composite plug on wiring. and the wire colors you gave me are correct. green was coming from the relay. plug wire ends looked clean. I had bought some relays off flee bay. as no one bid on them so I got them cheep last year. good thing I did put three of them in bike. then bike would not run. lol. got one bad one, ign relay. blue plug. so put old one back in. I can hear the fuel pump when turning bike on. before had to listen real close. found and fixed dash rattle. prariehammer I wired the extra switch on the sensor, used splitter terminal. both systems still work. if it functions correct will remove switch. I hope it does don't like farmerizing. the best part rolled over 30,000 today im relieved its fixed want to ride not work on it. need to get highway pegs.