Rebuilding a Walbro butterfly carburetor
- Hugh Hargett
- Aug 12, 2015
- 2 min read
In an effort to clear up some misconceptions about walbro carbs I decided to post a video on care and rebuilding the carbs from walbro as well as rebuff the false ideas about alternative fuel usage in a walbro carberetors.
Before I share the video I would like share a few facts about alternative fuel usage in a walbro carb. This is directly from walbro. Hopefully It will elighten these people that keep running around looking for ethanol free gas. Walbro is very aware what should be at the pump and has designed their carbs to run off common everyday pump gas. For me it seemed like common sense that walbro wouldnt expect one to hunt for special gas to trim a yard! But apparently this isnt the case. Many have decided after incorrect wet storage of fuel in their carbs and local levels exceeding legal amounts that their diaphram failures were due to their inability to run the legal alternative fuels found in common pump gas. Its simply not true.
It is important to note this passage in the 5th paragraph. "careless blending can sometimes result in levels exceeding these on a local level." This may explain some modelers holy grail idea that the carbs cannot handle methanol or alcohol of any kind. What I want to share here are the actual facts directly from walbro and a rebuild I did following this video tutorial by the letter.
This was very easy to do. You dont have to be a machinist or engineer to understand this very straight foward video tutorial.
Heres a few photos of my sucessful rebuild project. Walbro carbs have been found in many record setting saw and oval boats. Have no fear that if you cannot machine or engineer a carburetor for competition that a well maintained Walbro works faily well.
Happy Boating
Hugh
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