Posted by K.B.-826 on September 24, 2007 at 20:43:24 from (68.115.86.254):
In Reply to: 826 - Fuel pump posted by Bradford on September 24, 2007 at 18:29:25:
Look at the lower arm on the pump. When it is in the full forward position and contacting the stop screw, it is in the "run" position. You'll notice that as the arm is moved to the rear, it contacts a little spring loaded plunger. When it just contacts that plunger, the arm is in the "starting fuel" position. As the arm is moved all the way to the rear and compresses the plunger into it's barrel, it is in the "shut-off" position. Anything in between the "run" and "start" position will decrease the amount of fuel being delivered and will cause the engine to run slower and possibly stall. Start the engine and run at idle. Move the arm quickly by hand to the "start" position. The engine should speed up to about 1900 RPM. This will confirm that it's adjusted and working. It takes a little practice to feel the arm hit the plunger through the cable. Here's the proper procedure for starting- move the throttle lever to the 1/4 throttle position, pull the cable to the start position, crank the engine, and hold the cable in the start position until it is firing steadily enough to stay running, then throw the cable forward. It is also interesting to note that for some reason, these engines get harder to start after a failed attempt.
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