Jumat, 28 Februari 2014

how do you set the timing on a lawn mower?










Answer
You set the valve timing by lining up the spots on the timing gears when re-assembling the motor,.... its all but foolproof.
You set the ignition timing by making SURE the key way and the square key and the slot on the flywheel all line up exactly......again, almost foolproof.
The embedded magnet(s) in the flywheel pass the induction coil magnet and that charges the coil, and shoots the spark to the plug....

With the proper stoichiometric fuel ratio, the engine will run.

More lawn mower help?




Rob


I recently hydro-locked my lawn tractor, and I got it running again, i burnt off the excess oil in the system however, the motor doesnt seem to be running right. its acting as if its running out of gas (the rpms going up and down, pulsating really) it doesnt shut off, but it acts up and in low gears it jerks you as it gains and looses power, is there something i forgot to do? I cleaned the plugs drained the carb, air filter and all that.


Answer
Open the gas cap on your push mower. Tilt the lawn mower to empty the gas tank. Set the mower upright and fill the gas tank with new gas. For riding mowers, use a siphon tube with a hand pump to drain out the gasoline. Start the mower
Go to the carburetor and find the idle adjustment screw, Turn the screw to the left one-half turn. Start the lawn mower. If the idle is still too high, turn the adjustment screw one-eighth turn counterclockwise. If the mower idles too low, turn the adjustment screw one-eighth turn clockwise.

Also did you turn the engine over without the spark plug in to remove any excess fluid? Keep the engine running and pull the throttle cable back to allow the engine too burn any more oil away effecting the carburetor, if that doesn't work its time to move on to a carb rebuild.

Best of luck- BTW I strongly believe that the problem now lies with the carburetor , as you said you originally got it running after I told you the procedure how to get rid of the hydro lock condition




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