Service and Maintenance of the Carburetor
For maximum performance and reliability, it is important the
carburetor is maintained and adjusted properly. Failure to do so
will affect starting; idle, as well as the overall vehicles
performance.
The carburetor should be serviced and maintained as follows:
1. Regularly check the all connections and fittings on the intake
assembly. Check the Carburetor, intake, T-pipe, cylinder head,
cylinder block and intake port of the crankcase, and ensure
that they are tight and properly sealed. Any air leaks will
negatively affect the engines performance, and may cause top
end engine damage by allowing an excessively lean condition
to exist.
2. Inspect the fuel and vacuum lines for any ageing, weathering
or other deterioration, replace if any is found
3. Start and drive your vehicle often. Add a carb cleaner to your
fuel every 500 miles or so to keep the carburetor clean and
free of any build up from the fuel.
4. Gasoline left sitting for a long period of time will start to
become “stale”, breaking down into its base components as the
more volatile compounds evaporate. The longer a vehicle sits
the more likely the vehicle will develop carburetor issues
because of this stale fuel. If the vehicle is to be stored for any
length of time longer than 2 weeks, the fuel in the carburetor
bowl and fuel tank must be drained from the vehicle into an
approved container for use elsewhere. Failure to do so will
result in a contaminated, "clogged” carburetor. This will cause
hard starting and poor performance. The carburetor will then
have to removed and thoroughly cleaned or, as in many cases,
replaced.
Draining the fuel is quite simple. You will find a length of fuel
line running from the bottom of the carburetor to a bracket on the
frame. In that bracket, there will be a brass screw plug that when
removed will allow fuel to drain out of the carburetor bowl. Fuel
can then be easily syphoned from the fuel tank.
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