November 29, 200916 yr I recently noticed that the fan on my 2007 TXTPro 300 is running almost continuously. It shuts off on occasion, but is running more than it used to. The bike doesn't overheat though. What do you guys think the problem might be ? Thermostat or water pump ?
December 10, 200916 yr i dont have an answer to that, but after a tip over in a puddle yesterday my fan "whistles" when it runs. Any thoughts on this? i was considering just unhooking the fan as i ride the bike in TRAILS, not trials, so it gets a fair bit of air over the rad.
December 10, 200916 yr i was considering just unhooking the fan as i ride the bike in TRAILS, not trials, so it gets a fair bit of air over the rad. Not a good idea.
December 10, 200916 yr elctb, i have the same "problem" but don't know why it always whirl and sound like spaceship...wiiiiiii! and 300cc model too. Edited December 10, 200916 yr by Lian
December 27, 200916 yr Author Well, I changed the thermostat and the fan still runs as much as it did before. I would estimate it runs 60-70% of the time. It might be normal for it to run that much. I'll keep riding the bike for now.
December 28, 200916 yr Recently have read that cylinder can be warm more cause carb did not regulated right - give richer mix. And from long work on rich mix will generate snuff in engine and muffler. It cause decreasing power, shoots from silencer and overheating cylinder, so cooler will work almost always... Check mix, maybe I need too... Edited December 28, 200916 yr by Lian
January 1, 201016 yr Well, I changed the thermostat and the fan still runs as much as it did before. I would estimate it runs 60-70% of the time. It might be normal for it to run that much. I'll keep riding the bike for now. Coolant level okay? Impeller working properly?
January 2, 201016 yr Author I've checked the coolant level and it's to the top of the radiator. Is there an easy way to check the impeller ? How can I check the impeller is working properly ?
January 2, 201016 yr can be lots of things myn runs most the time they dont run much cooland and the rad is small so dosent do much if its on more than it was before check your still using same fuel and oil mix and same oil quality then check water pump impellor for broken fins and play and check you plug is not to dry or to wet maybe change it anyways thats all it can be really if your stat is new
January 13, 201016 yr any reason for the very loud whistling sound from my fan? sounds almost like a loud screech
January 13, 201016 yr As for the sceeching, make sure theres nothing catching......sounds silly, but my old bike started screeching and it turned out to be the fan barely catching a cable tie !
January 13, 201016 yr thanks its so tight in there (jokes aside) that its hard to get a good idea what the F is going on. i will try again and take a look. it could be something touching it
January 14, 201016 yr The noise could be the bearings going out in the fan motor. If they are going out it could be slowing the fan down therefore causing it to run more. If it isn't rubbing I am guessing you need a new fan motor. Craig
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