there really isnt one. most of us kinda piece together what others before us have done before.

1. start by removing plastic from the weedeater.

2. trim down the backplate (which is the only plastic you keep)

3. trim down the fins on the magneto wheel.(either by lathe or hacksaw them but that takes rebalancing)

4. trim down the flashing from the crankcase that you dont need. (be careful not to remove your mount for the magneto)

5. get a prop hub by either buying one or making one for yourself. (carr carries this)

6. get an engine mount which bolts on top of the trimmed down plastic backplate.(carr again carries them)

7. get a 16 to 18 inch prop

8. there might be a blowback hole on the exhaust port drill this and tap it for 10/32 becareful not to drill or tap so far you go into the piston wall. put a small allen head set screw in the whole you just tapped.

9. take the muffler apart strip out the guts but keep the metal posts those keep the muffler intact when you tighten the muffler.

10. this step is not always necsesary but get a bigger bore carberator. ( the stock might be a 9mm venturi which means less fuel, stock carb might not be adjustable as well)

11. plug the metal tube that comes from the priming bulb on the carb since you might not need it if you use an electric starter. then connect your fuel feed line to the other brass tube. also this might be a good time to tell you that the carb spacer needs trimming.

12. mount on a very sturdy stand these engines reguardless of what you heard have some amount of power.

13. you can use a standard electric starter and turn the engine over till it starts

14. any questions post them here and see where we can help.


also one side note the magneto pickup you need to either get a switch or use the one on the weedeater for you to kill the engine with or you will be doing what i did and hold the wire that the switch plugs to on the engine till it quick. i think the switch would be easier or you can just clip the fuel line.