Hi guys. New to the forum here. I’ve done some searching around online and not coming up with any solutions for my issue. I have a 94 250 trail boss. Picked it up last winter from a kid that was having issues with spark plugs fouling and didn’t want to mess with it anymore. After winter was over, I replaced the carb guts and, after some minor carb adjustments, it ran fine. And it still runs fine unless the outside temp is above about 85-90 degrees. When we hit that temp, the quad runs fine for about 5-10 minutes but then gradually begins to lose all power, mainly low end power. If going uphill or through brush (anything that needs some extra umph) it will just bog down and pour exhaust out like crazy. It doesn’t die, just bogs so bad it won’t move. Again, this is only when the weather is hot. Any ideas??

Hi guys. New to the forum here. I’ve done some searching around online and not coming up with any solutions for my issue. I have a 94 250 trail boss. Picked it up last winter from a kid that was having issues with spark plugs fouling and didn’t want to mess with it anymore. After winter was over, I replaced the carb guts and, after some minor carb adjustments, it ran fine. And it still runs fine unless the outside temp is above about 85-90 degrees. When we hit that temp, the quad runs fine for about 5-10 minutes but then gradually begins to lose all power, mainly low end power. If going uphill or through brush (anything that needs some extra umph) it will just bog down and pour exhaust out like crazy. It doesn’t die, just bogs so bad it won’t move. Again, this is only when the weather is hot. Any ideas??