Take Along Chain Saw

[DeeGee]

Put contaminated gas in my very small, take along chain saw.  I need the procedure for taking a Walbro wt 20 carburetor down and giving it a good cleaning.  Where can I look for an assembly drawing and perhaps a take down procedure.  Thanks    DG

[Siskiyou]

Try this link.

http://www.gardengrapevine.com/ChainsawCarbRepair.html

I would try spraying it a few times with carb clean, crank it.  Spray it, let set.  Spray it and let is set.  Note I would remove the fuel line before cranking it.  You do not want to suck crud into the carb.

I would also spray the inside of the tank and drain.  Normally there is a fuel filter on the end of the pickup line in side the tank.  I would replace the filter.  If not clean it with carb cleaner, and blow it with air.  While the filter is off the fuel line remove the other end from the carb.  Flush with carb cleaner and blow out with air.  You should be able to pickup a filter at a chainsaw shop, or find the filter on the Net.