![]() The one you showed with the second governor spring has a Pulsa-Prime carburetor, not a Pulsa-Jet like yours, and is therefore at least ten years newer than yours, probably more than that. Post-Edit: I was wrong, the ignition coil is clearly a Magnetron, so the engine is post-1982 (unless the Magnetron had been fitted later). As far as I can tell your ignition coil does not have the Magnatron fitted, so your engine is pre-1982. With regard to your earlier comment that the use of a second governor spring is on a "later model", and therefore applicable to your engine, there seems to be a mismatch of information. If the vane isn't free, loosen its pivot bolt and see what is causing it to stick - the pivot bolt might be too tight. ![]() If it is, your link between air vane arm and throttle was stuck. Disconnect the link between the air vane's arm and the throttle, and see if the vane is free. If there is any resistance whatever, the vane or linkage is physically stuck. I suggest you temporarily remove both governor springs, then try to move the vane with very light finger pressure. Sparker, something seems to be keeping the vane from moving freely. >**If it Still Runs at Full Throttle, then Check the Internal Governor.** >If the Engine Still Runs Full Throttle, then Reverse the Rotation of the Governor Shaft, but Still Hold the Carburetor at Full Throttle with the Governor Arm. Now with the Shaft Full Clockwise and the Governor Arm and Carburetor Held at Full Throttle, Tighten the Governor Arm Bolt. >Using the Governor Arm Hold the Carburetor to Full Throttle. >**To Reset the Governor Loosen the Governor Arm Bolt and Turn the Governor Shaft Clockwise Until it Stops. >If you Removed/Loosened the Governor Arm from the Governor Shaft or Put the Linkage in a Bind when the Carburetor was Removed, then Reset the Governor. The Following is an Instruction File I Made for Setting the Governor Arm Correctly. Do you think a good clean of the carby would make a difference? I found this on the web it is to do with the governor setting - it might help someone but it did'nt help me: ![]() I notice more tension than I thought would be there on the governor but can't figure out where it is coming from or whether that's normal. If I manually move the governor it works OK. There is a shot of the old spring if you can call it that! However, to no avail as the engine still races away to full throttle. I bought a new governor spring ($13.25 here in Mackay) and have added it to the carby. Here are some shots I took The throttle is fully open (off position). ![]()
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