Trial and error

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trackfodder

Member
Sep 8, 2008
347
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I have a Scat Kat Kitten scooter about the size of a Doodlebug I decided to stick a surplus 5-1/2 HP sloper OHV in I took from my 3-speed Monarch when I stuck a similiar 6-1/2 HP HFT engine in it. It had a cast iron pulley with a frozen setscrew on the shaft. I tried to drill it out with a carbide drill, but ended up grinding it to remove, only to find it a 3/4" shaft and the centrifugal clutch 5/8". Then I got a brillient idea I would put the clutch on the lawnmower jackshaft. Luckily, I realized I had to drive the hole, not the vee. Then I found the OHV head was in the same space I needed for the jackshaft. Back to my origional 2HP Lawson I started to use once upon a time. I had to make a sleeve for the 1/2" shaft and mill a 3/16" groove in it for keystock and mill part of it to fit into the 1/8" slot on the shaft. The rear hub is one I made from ally with a drum on one side for an external band brake. I think I will use a backward piece of vee belt and a foot peddle where the footrest stud is. A 10" OD wheel doesn't require much brake. The other side footpeg is snapped off flush. I am 6 ft tall so need more foot room anyhow so will bolt a Doodlebug-type floorboard underneath with the motor bolts. A 36 tooth peddle sprocket is bolted to the drum It will use a #41 chain. The mower jackshaft has a #41 11 tooth sprocket. In drilling stuff on the drillpress, decided to recommend my system to you. I have a foot microswitch and a reversing toggle which allows me to have a hand on the work as I start it, and I can run taps in and out with the reversing switch. It is a very safe system. In a machine shop, most accidents are due to drillpress usage. My next move is to locate a recoil starter on an old lawnmower I can put on the Lawson. I am sick of many years of using pull ropes on open drums. Besides that, I won;t have to worry about my pants leg. I hope after I finish this toy, I will get back to wiring my Lotus 7 scratch build. I have about run out of copouts to keep from adressing that problem.
 

MEASURE TWICE

Well-Known Member
Jul 13, 2010
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Like to see pics of what your working on.

Here is what I was going to buy before I found that my recoil parts just needed lubrication to sink in. It took a few days and now it does not stick. Also over run recoil clutch should not happen as pawl clutch new at Yard Birds I got for about I think 15 - 20 bucks. Don't you hate it when the cord spits back out at you and the flywheel soft aluminum key shears off!

The Lawson 2hp not sure if Ebay has, but I got a used air filter housing that was in good shape for cheap!

I know the picture shows that the cord handle is not snug back in housing, but that probably just needs a turn or two more on the spring. It looks also that it has been scratched on the cover. Ehhh if it works, can sand and repaint it.

MT

scratg
 

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trackfodder

Member
Sep 8, 2008
347
3
18
Re: Trial and error An air cleaner idea

Like to see pics of what your working on.

Here is what I was going to buy before I found that my recoil parts just needed lubrication to sink in. It took a few days and now it does not stick. Also over run recoil clutch should not happen as pawl clutch new at Yard Birds I got for about I think 15 - 20 bucks. Don't you hate it when the cord spits back out at you and the flywheel soft aluminum key shears off!

The Lawson 2hp not sure if Ebay has, but I got a used air filter housing that was in good shape for cheap!

I know the picture shows that the cord handle is not snug back in housing, but that probably just needs a turn or two more on the spring. It looks also that it has been scratched on the cover. Ehhh if it works, can sand and repaint it.

MT

I need an offset air cleaner to clear the jackshaft sprocket,. I think a saddle soap or large shoewax tin with an oil soaked air cleaner foam in it should be OK.

scratg

I need an offset air cleaner to clear the jackshaft sprocket,. I think a saddle soap or large shoewax tin with an oil soaked air cleaner foam in it should be OK.