Posted by Willy-N on Friday, February 11, 2005 at 6:54PM :
In Reply to: Re: Yes a stock M37 will do 55+ no problem! posted by Tim Way on Friday, February 11, 2005 at 6:32PM :
All you have to do is remove the side cover off the Govenor. To remove the lever on the outside you loosen the screw pinching the shaft into it. Remove the little set screw going into the hole on the flat spot and pull this lever off. Screw the brass adjustment rod under the cap down into the housing and remove it along with the spring and chain. Match the hole the shaft went into with a drill same size 5/16" crank up the drill press to high speed so it does not grab and drill it out round. Put the shaft back in and turn it aprox 1/4 inch clock wise this puts the inside cam on the other side of the lever on the inside of the housing that works the butterfly. Start the engine and it will run with out the cover in place. This will hold the lever up inside at it lowest idle. Put the cover on making sure the cam is on the fender side of the inside lever and put 2 screws in to hold it in place. The Cam on the cover should just be against the inside lever snug and raise the idle up some. Check to make sure you can adjust the idle screw to raise and lower the idle in the proper RPM Range. If it is OK remove the cover again tighten the shaft up tight and grind off the point on the little set screw and screw it tigh to the shaft to double lock it in place. You might want to put lock tite on the threads because this screw had 2 burrs keeping it from falling out befor. Put the cover back on with all the screws hook up your throttle rod and your done. It works smooth and very responcive throttle now with no hesitation or surge just like a regular vehicals throttle. Now I can cruse 55+ mph if I want with no surge at all. As far as returning it to stock again you would just put the parts back in the govenor housing re/set the lever to the original pososion and tighten it back up. Then you will have to adjust your governor speed again to work right which is hard to get just perfect. You realy don't need a picture because when you remove the cover there is only one flat lever you deal with. Not complicated to do if you follow these instructions. Copy and print them out so you have them on hand. This job took me around 15-20 mins to do complete. Mark H.