Hippocampus s5 throttle position

When the idle speed of the engine is too high, start the engine first, and then control the throttle arm by hand to close the throttle. If the idle speed is normal at this time, it means that the throttle tension spring is too soft and should be replaced. If closing the throttle valve by hand is ineffective, check whether the throttle shaft is loose or whether the throttle valve is closed tightly. If the throttle valve is not tightly closed or the throttle shaft is loose, please repair it. If the throttle valve is normal, check whether there is slight air leakage under the throttle valve. If there is, eliminate the air leakage. If not, further adjust the idle speed until the idle speed is appropriate.

When the engine turns off at idle speed, the idle speed should be adjusted according to the actual situation. After adjustment, if the fault disappears, it is improper adjustment of the idle screw. After adjustment, if the fault does not disappear, open the throttle to keep the engine running. Check the carburetor and intake manifold gasket for air leakage with cotton yarn or paper. If there is no air leakage, remove the idle metering hole for inspection, blow out the idle oil circuit at the same time, and then reassemble the test. If the fault cannot be eliminated after idle speed adjustment, check whether the idle metering hole and idle air metering hole are blocked. If the metering hole is blocked, clean it with gasoline or acetone and blow it with compressed air.