I have removed the front valve cover w/ out taking the fuel tank off on older Rubicons but not '05 - '06. I tried adjusting the valves that way looking for a short cut also (higher efficiency = more pay), but I have found that doing it that way puts the feeler gauges at a different angle and your measurement is not accurate. If a customer is going to pay me to adjust their valves, I'm going to do it correctly. Take the time to remove the fuel tank and shield. Then you know your valves are adjusted correctly. It takes about 30 -45 minutes to adjust the valves, depending on how fast I feel like working.
The TRX500FE/FM has shields covering open spots around the exhaust and intake.. They are hard to even adjust the clutch on the TRX500's without removing some plastic covers .. It's just as easy to remove the tank cover,tank & heat shield .. ecpecially if you have a shop manual ..
I have the service manual, and they say to adjust the valve when bike is cold, but it is minus -5 Celcius at my place right now and my Foreman is in my shed not isolated, so do you think I should let it run for 5 minutes then wait an hour after before taking apart the parts to get to the valves adjustements and gage it then?
Yes the engine should be more or less at room temp is all.. I'd run it a while then let it cool , you can pretty much tell by holding your hand on the head ..
A liquid cooled model will take a little longer to cool than an air cooled model ..
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