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Old 26-09-2005, 01:23 PM
Tim..
 
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"David Martel" wrote in message
nk.net...

Where would I give it the starter fluid?


Sorry. Remove the air filter and give a big squirt straight down the
carb throat.

Have played with the needle
valve and got it to the point where starts but it won't ever tick over
until operating temperature is reached.


Yes, it is now misadjusted. Screw it completely in and then out 1 1/2
turns.

Clockwise will increase idle speed. You are correct it is an end-stop.
If the screw does not touch metal. then investigate the throttle cable and
the linkages. It would be very unusual for the linkage springs to lose
"springyness".

I don't understand your question about the choke. The choke should be
controlled manually, usually by a lever.


No, this B&S, has the choke-o-matic carb where the choke is naturally shut,
but opens via vacuum acting on a diaphragm between the carb base and fuel
tank under it.

It will have a main fuel mixture screw and idle speed screw. As you say base
setting is 1 1/2 turns out with a 2/3 ful fuel tank. This is important.
Mixture strength varies with fuel level (yes, crap B&S design!)

Usually have to set them slightly on the rich side so they'll accelorate
cleanly from idle (which should be a fastish 1750rpm) without dying, yet run
at full speed without being too rich.

Tim..