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Discussion Starter #1 (Edited)
Just purchased a 2000 Honda Rancher ES that appears to be in excellent condition. 725 miles. After driving a few minutes, and shifted into neutral, motor starts reveing up and rpms increase to the point unit will not shift gears. Shut it down and let cool a bit, will start and runs good until heats up again. Did run a can of Seafoam, but no help.
Any ideas or advice? Thanks in advance.
 

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Sounds like you have a vaccum leak.... Look around your carb for any cracked hoses...
 

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Does it have an OEM carb or a china made aftermarket carb? If not OEM its best to start with one... china carbs are junk. If OEM carb, get a copy of the service manual and clean & recalibrate the carb and cables as recommended. And check for a cracked intake boot as XplicitRacing6 mentioned... :)

Welcome to the forums!
 

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I have a 2000 Rancher and it has done the same thing as yours.
Quick work around is to pull out the choke for a couple of seconds,
that should drop the rpms right down. But if you have the original carb
chances are the choke won't work - SE valve gets stuck on old carbs,
or the choke cable will be locked up.

The real fix is to adjust the pilot screw. I use the removable tip off
a screwdriver (flathead), and some gloves because you need to adjust it
with the engine hot. Screw it in about 1/2 turn and then screw out the
knurled knob as a starting point.
 
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