freebo86 291 Posted April 26, 2021 So I got my hands on this electrical connector that's off a 300 that had a fan, do not know the year - the module looks very similar to the FCU. The reason I grabbed is was because on my 450, the fan controller works intermittently. The oil light would flicker sometimes when I turn the key. If I bake it in the oven for a while it would would fix it it for the time being. The fan still works and would come, just i could tell the controller would act up now and then. This connector which looks very similar to the fan controller on the 450 but smaller. The two green connection on this are reversed from what the Fan Controller that's on my 450. Can someone enlighten me, will this work on the 450? I do not want to just plug it and in cross my fingers lol. Back stamped: Shindengen 2 pin connector labeled: HC4 TL-29A Photo of said machine. Share this post Link to post Share on other sites
Fishfiles 20,147 Posted April 26, 2021 fan controller for a 300 -- it has a different part number than a 450 , and shows as no longer available for the 300 ---- the fan controller for a 450 fits 98-2004 ES or FM /S , sells for $185 and is still available , if they will interchange I don't know --- guess a melt down / burn out would be the worst that could happen if you plugged it in and it didn't work 3 Share this post Link to post Share on other sites
freebo86 291 Posted April 26, 2021 3 minutes ago, Fishfiles said: fan controller for a 300 -- it has a different part number than a 450 , and shows as no longer available for the 300 ---- the fan controller for a 450 fits 98-2004 ES or FM /S , sells for $185 and is still available , if they will interchange I don't know --- guess a melt down / burn out would be the worst that could happen if you plugged it in and it didn't work You say meltdown? Lol.. Machine or Controller Unit? Or both? Share this post Link to post Share on other sites
Fishfiles 20,147 Posted April 26, 2021 3 hours ago, freebo86 said: You say meltdown? Lol.. Machine or Controller Unit? Or both? If you smell something burning , unplug it quick , LOL Share this post Link to post Share on other sites
Goober 1,555 Posted April 27, 2021 (edited) I have successfully swapped the TRX300FW -2B and TRX400/450S -2D FCU. I used to run the TRX300A FCU (like you have) in my TRX300FW until i found a NOS Omron -2B from Double Deuce. I don’t know why the two FCU are different sizes except one is Shindengen and the other more common is Omron. And the connectors are backwards. It will likely function. Would suck if it didn’t Edited April 27, 2021 by Goober Share this post Link to post Share on other sites
freebo86 291 Posted April 27, 2021 I dont want to just plug this in and hope for the best lol. No other way of testing or confirming? Share this post Link to post Share on other sites
jeepwm69 7,751 Posted April 27, 2021 Is that a 2nd or 3rd gen CDI? I know the 350 Ranchers use the same CDI as the 98-00 300's, and the 350 Rancher units have fan plugs on them. Share this post Link to post Share on other sites
freebo86 291 Posted April 27, 2021 (edited) 10 minutes ago, jeepwm69 said: Is that a 2nd or 3rd gen CDI? I know the 350 Ranchers use the same CDI as the 98-00 300's, and the 350 Rancher units have fan plugs on them. Dont think this a CDI? Edited April 27, 2021 by freebo86 Share this post Link to post Share on other sites
jeepwm69 7,751 Posted April 27, 2021 Ah, FCU...fan control unit.... On the 350 Ranchers the CDI has the fan control unit built in. I thought it was a typo as some people refer to the CDI as an ECU. 1 Share this post Link to post Share on other sites
freebo86 291 Posted April 27, 2021 Anyone know if the FCU from a 350 would work? Share this post Link to post Share on other sites
Fishfiles 20,147 Posted April 28, 2021 5 minutes ago, freebo86 said: Anyone know if the FCU from a 350 would work? jeep said , the fan control is built into the cdi on the late model 350s --- I just looked at the fan module for the 350A+D , it has a pigtail coming off of it and has no plug connector on the module itself 2 Share this post Link to post Share on other sites
freebo86 291 Posted April 28, 2021 6 minutes ago, Fishfiles said: jeep said , the fan control is built into the cdi on the late model 350s --- I just looked at the fan module for the 350A+D , it has a pigtail coming off of it and has no plug connector on the module itself 10-4 missed his response! Share this post Link to post Share on other sites
toodeep 1,760 Posted April 28, 2021 1 hour ago, Fishfiles said: jeep said , the fan control is built into the cdi on the late model 350s --- I just looked at the fan module for the 350A+D , it has a pigtail coming off of it and has no plug connector on the module itself 350 Ranchers, the Fourtrax/Foreman 350 has a separate alarm unit. I can't help with if any will interchange or not and still function properly. On most of the older machines when it goes bad, most of them get a toggle switch and are manually controlled. 1 Share this post Link to post Share on other sites
Goober 1,555 Posted April 28, 2021 (edited) On 4/26/2021 at 12:16 PM, Fishfiles said: the fan controller for a 450 fits 98-2004 ES or FM /S , sells for $185 and is still available , if they will interchange I don't know --- I have a TRX300FW with the optional fan kit; it came with Omron pn G8D-21H-2B. The TRX400/TRX450 FCU Omron G8D-21H-2D will interchange and looks identical except the Omron part numbers. Edited April 28, 2021 by Goober 1 Share this post Link to post Share on other sites
Fishfiles 20,147 Posted April 28, 2021 Well PowerSportsNation had two different fan controllers for a 300 a couple of weeks back , I am on their mailing list and seen them when they came on line , they were really cheap also , if i remember right I am thinking $25 ----- \ another way to handle the problem is a automotive fan controller from JEGS , I think I paid about $50 for the one on my red 95 300 , it is dual fan control and is settable for on and off independently of the two fans , it says to keep it out of direct water , so I mounted it inside of a water proof Pelican style case , there is a probe that slides in between the fins of the cooler ---- I am going to be running two fans on that 300 , need to finish that project Oh , that automotive fan controller does come in a single fan unit also 1 Share this post Link to post Share on other sites
Goober 1,555 Posted April 28, 2021 When shopping for a replacement FCU i saw several of those smaller FCU Freeboi has touted as TRX300A (2wd) FCU. Don’t know how sellers knew that, but I bought one. It worked but I cannot remember why I didn’t like it—except that the leads are backwards. From what I remember the real FCU has the 2P connector inboard. The other has the 2P outboard so you have to twist the harnesses upside down to connect. you guys are gonna make me dig it out aren’t you? 3 Share this post Link to post Share on other sites
freebo86 291 Posted April 28, 2021 To wire the fan to a switch is always an option just I’m trying to avoid any extra wiring or fusing lol. Share this post Link to post Share on other sites
Goober 1,555 Posted April 29, 2021 14 hours ago, freebo86 said: To wire the fan to a switch is always an option just I’m trying to avoid any extra wiring or fusing lol. Where’s the picture of the FCU you purchased? That parts machine is a 4x4. The picture above is my FCU. Maybe you bought the -2B without realizing it Share this post Link to post Share on other sites
freebo86 291 Posted April 30, 2021 Here is the ones I got. It was a 4x4 machine with a fan it came out of. Not sure what the red connector module is for. Share this post Link to post Share on other sites
Goober 1,555 Posted April 30, 2021 Ok yup that’s the same one i have Back stamped Shindengen 2 pin connector labeled HC4 TL-29A 2P outboard on edge 4P inboard centered it works on my TRX300FW fan kit; Should work on your 450. But it’s not the prescribed part. i still have mine in a TRX300 parts box. I could dig it out and try it on my 450. that red connector module is probably a fuel control relay for a 86-89 TRX350. Probably doesn’t fit the parts quad or yours. One of the members here might be interested in that. I would be also, but i have a spare. 1 Share this post Link to post Share on other sites
freebo86 291 Posted May 6, 2021 Any luck swapping out and testing? My unit is kaput. Light don’t come on anymore. Will try to bake in oven and see if I can revive this thing. I stumbled on this on fleebay for a fraction of the cost. https://www.ebay.ca/itm/272495703999 Amazon has some too but more money. Share this post Link to post Share on other sites
jeepwm69 7,751 Posted May 6, 2021 13 hours ago, freebo86 said: Any luck swapping out and testing? My unit is kaput. Light don’t come on anymore. Will try to bake in oven and see if I can revive this thing. I stumbled on this on fleebay for a fraction of the cost. https://www.ebay.ca/itm/272495703999 Amazon has some too but more money. I wouldn't buy that. China junk. Check these out. PSN at least will stand behind their parts, and they only sell OEM stuff. https://www.powersportsnation.com/saas/pliable/searchresult/?search=honda fan control Share this post Link to post Share on other sites
freebo86 291 Posted May 6, 2021 7 minutes ago, jeepwm69 said: I wouldn't buy that. China junk. Check these out. PSN at least will stand behind their parts, and they only sell OEM stuff. https://www.powersportsnation.com/saas/pliable/searchresult/?search=honda fan control that’s all for the 300s. From what I understand only the controller from a 400 will work on a 450. Share this post Link to post Share on other sites
jeepwm69 7,751 Posted May 6, 2021 Ah, I skimmed the text and looked at the picture of the 300. I'd call PSN. They had 3 450's coming on the newsletter a couple of weeks ago. Might have one that they haven't listed yet. 1 Share this post Link to post Share on other sites
freebo86 291 Posted May 6, 2021 Well there is a guy locally selling one for $60 CDN... I revived mine for the 3rd time lol. Installed, turn key light comes on and off as exited. Prob last a month or two.. 1 Share this post Link to post Share on other sites
