I recently purchased a 2001 GG TXT 321 and soon found it had a burnt fan motor. After looking around and doing internet searches I found I could get a factory fan for $170 plus shipping and it would need to come from Europe. Found another guy in Illinois who had one for $150 plus shipping. Uhhh, no. After reading the post above it was off to Summit Racing and $50 and one day later had a Spal fan in my hands (love Summit's fast shipping!)

I removed the radiator and fan shroud assembly. Removed the shroud from radiator, then the fan. Looked at bolting the Spal to the existing shroud supports, but that wasn't going to work. Cut out the supports using a hacksaw and the round Spal fit perfectly in the hole left behind. I cut the factory plug off the old fan, cut the Spal plug off and used heat shrink connectors to attach the factory plug to the Spal fan. Drilled holes in the radiator shroud near the mounting holes for the Spal and used 4 zip ties to attach fan to shroud. Put it all back together and couldn't get the gas tank to fit back down in the frame. Plus the fan was really close to the spark plug boot, almost touching.

I needed to move the fan closer to the radiator. There was plenty of room for the Spal fan to sink down into the radiator shroud more; almost half an inch in fact. I took it back apart and I used a grinder and a file to cut notches in the shroud, allowing me to sink the Spal another 3/8" into the shroud. Also rotated the fan assembly in the shroud so the wires came out the bottom instead of to the right where the temp sender and radiator hose made clearance tight. Put it back together and bingo, everything fit great. Rode the bike around to heat it up and the fan cycles normally, no more overheating.

Used a Spal 4" puller fan, $50 from Summit Racing, 4 zip ties and some hand tools. Took about 4 hours to make the repair. Could probably do it in 2, but I was being cautious with everything.

Anyone done this more recently and have up to date info on repair parts? 
 

Mine was squawking on/off quite badly… I had as much as a go I could at doing something with the existing unit when I was overhauling the bike. It was free and not making any noise (driving with air though…). 
 

Got the bike running after 2yrs in bits, it’s making a noise intermittently… sprayed some lithium grease on the bush when it was hot… seems to be ok for now. Still would like to get prepared for replacement though. Riding in the UAE, it’s getting super hot now. 

On 6/19/2024 at 8:38 PM, miner said:

Anyone done this more recently and have up to date info on repair parts? 
 

Mine was squawking on/off quite badly… I had as much as a go I could at doing something with the existing unit when I was overhauling the bike. It was free and not making any noise (driving with air though…). 
 

Got the bike running after 2yrs in bits, it’s making a noise intermittently… sprayed some lithium grease on the bush when it was hot… seems to be ok for now. Still would like to get prepared for replacement though. Riding in the UAE, it’s getting super hot now. 

This is what I have used in the past MFA como drills 457RE540/1 MOTOR with mounting bracket 4.5 - 15 volt 15,800 rpm @ 12 volts        www.mfacomodrills.com.