I'm trying to adjust the valves on my 2001 yamaha yz 250f. Was just trying to find a step by step on how to do that?

SOURCE: yamaha 2006 yz 250f gets over heated

Hello,

It is normal for the bike to overheat when idleing !

This bike needs air to pass through the radiator for cooling purposes. Air speed needs to exceed 40 kilometres per hour for effective cooling.

A good tip is to use only coolant in the radiator. Do not mix with water.

Cheers

Jon

SOURCE: 2001 yamaha warrior valve adjustment

hello
with the cylinder set at top dead center compression. using a feeler gauge between the tappets and the valves there should be .002-.003in clearance on the intake valves, and .006-.007in. clearance on the exhaust valves. thank you.

SOURCE: Yamaha YZ 80 Not Starting

has this bike been winterized with fuel stabulizer?

has this bike got enough compression?

is the oil injection working?

yes reeds are slighly opened
if tamper with
will loose - acceleration - top end power

SOURCE: Where can I find a power valve assembly diagram?

http://cgi.ebay.com/ebaymotors/1984-YAMAHA-Riva-XC180ZL-Scooter-Carburetor-Assembly_W0QQcmdZViewItemQQ_trkparmsZ72Q3a543Q7c66Q3a2Q7c65Q3a12Q7c39Q3a1Q7c240Q3a1318QQ_trksid

SOURCE: my 2001 Yamaha YZ 250F won't idle without choke.

did you pull the float pin out and the brass housing that the pin goes in? you may have to clean that and go get some spray brake cleaner with the red straw and blow out all the ports. the reason it will idle with the choke pulled is it shuts off air flow which pulls more fuel to air. without the choke it cant get enough fuel. i would try the bowl again starting with the float and needle. but go ahead and just really clean it all the way through or you will just keep chasing it.