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airhog

Name M
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Date Joined Oct 14, 2008
Date Last Access Oct 19, 2008 10:49 pm
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Re: Problem
#1   Oct 19, 2008 10:49 pm
Good News!

The engine is running like a champ. I removed the high speed needle and tube and cleaned out the two passages in the tube. I also replaced the rubber O ring on the high speed needle as it was deformed and cracked. After a quick prime and a pull the engine sang like a champ at all RPM levels. Under load the governor worked perfect.

Thanks for all your help.

Re: Problem
#2   Oct 15, 2008 10:51 pm
I have zeroed the governor shaft to make sure it is corect and then I moved the spring from a setting 4 holes from the top to the top hole. I started the engine, let it warm up and then held the throttle in a position just past idle to see if the engine would hunt without the input from the governor and it runs steady.I wanted to do this to see if the carb was the problem but it seemed to prove it is a governor issue. I then ran the engine this time without holding the throttle linkage and the engine would still hunt a lower RPM's but is almost gone a high RPM's. Moving the spring to the upper hole has helped. While the hunting is reduced at lower RPM's it is still present.
Although I did take the carb off before I did not specifically check any passages or holes in the main jet tube as I was not aware any were present. I will check this next to make sure they are clean.

This engine has a primer button on the engine cowl and the high speed needle is on the bottom of the fuel bowl.

Problem
#3   Oct 14, 2008 8:59 pm
I have a tecumseh HS40 engine that hunts at all rpm's low or high. I have removed the carb and cleaned it, removed all needles for cleaning, checked the float for leaking(seems ok), adjusted the float level with a 11/64 drill bit, used a base setting of 1.5 turns for the high speed needle and 1 turn for the low speed. Adjusted the engine while running at high speed and low. After this it still wants to hunt at all speeds.
What should I do next. Does it need a carb kit? Do I need to adjust the governor linkage. Any help is appreciated.

Do not know what my next step should be.
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