Wristpin

Coverage for  models 1340'1535,1541,1860,1862,1782,1882,2082,2182,190-328,190-336,190-349,190-357,190-358,190-359,190-374,383,433/383, 388/389,759-3493, 2130,2000series,2135,2165,1782,1572,1440,1641,324 54" deck. E&OE. Manuals in good condition  (with a few oily finger marks!)

When it’s going at full chat you will need ear defenders for both yourself and any near neighbours.

I would question whether an eight year old should be driving at  garden tractor at all but if you've made that decision he should be supervised at all times and all the machine's safety systems, such as the seat pressure switch should be fully functional . If it has not got a seat pressure switch or it has been by passed, that should be rectified. Consider a "kill tag" that cuts out the engine should he fall off or hit his head on a tree bough etc.
While anything is possible I think that the installation of a centrifugal clutch and additional brake will not be a simple matter.  A tractor with hydrostatic transmission would achieve smooth single pedal or lever control of forward neutral and reverse and give dynamic braking.
A used transmission such as a TuffTorq K55 or 46 would fulfil both the above functions and is perfectly "doable" using readily available new and used parts. Alternatively re-sell the machine and buy a hydrostatic one.
 

Slightly off piste but Mowmaster's handle and avatar reminds me of when the green Mowmaster 332 was introduced at the price of £999, and we sold dozens of those and the later red 333 . Looking back on my records I see  one 332 that we sold  in 1996 was still returning for an annual service when I retired in 2012. 

I'm neither a welder nor a metallurgist but I'm under the impression that magnesium (or may be not a particular  alloy of) is flammable so how much heat can be applied? Also can aluminium and magnesium alloy be mixed?
To explain my thoughts on magnesium being flammable, many years ago the UK made Ferguson tractors had a magnesium alloy gearbox housing and if one of those tractors was unfortunate to be in a barn fire the result would be a front and  a back and a pile of gear wheels - the gearbox casing being entirely vapourised.

Difficult to gauge just how wide that lip is but would it be possible to drill some fine holes to accept panel pins, or what ever they are called your side of the pond , and use them as a key for the JB weld?

Difficult to gauge just how wide that lip is but would it be possible to drill some fine holes to accept panel pins, or what ever they are called your side of the pond , and use them as a key for the JB weld?

I'm neither a welder nor a metallurgist but I'm under the impression that magnesium (or may be not a particular  alloy of) is flammable so how much heat can be applied? Also can aluminium and magnesium alloy be mixed?
To explain my thoughts on magnesium being flammable, many years ago the UK made Ferguson tractors had a magnesium alloy gearbox housing and if one of those tractors was unfortunate to be in a barn fire the result would be a front and  a back and a pile of gear wheels - the gearbox casing being entirely vapourised.

A good find there but I would think that the little Suffolk engine would be working quite  hard with that ridger (spelling??) body in Wealden clay, but perhaps it's destined for a more relaxed life? 

As per my post in Lawnbug thread the Gemini later appeared as the Flymo DM complete with optional traction wheels and tipping hopper, but with a Briggs engine..
 

The Gemini was introduced in the 70s with the Suffolk cast iron engine and a “ sealed for life” welded chain case. The later Flymo DM  bore more than a passing resemblance . Not sure what or if there was a connection but both had a similar optional tipping barrow body which picked up on the chain case lug used by the rotor guard  and the rotors were replaced by lug tyred wheels..

The Gemini was introduced in the 70s with the Suffolk cast iron engine and a “ sealed for life” welded chain case. The later Flymo DM  bore more than a passing resemblance . Not sure what or if there was a connection but both had a similar optional tipping barrow body which picked up on the chain case lug used by the rotor guard  and the rotors were replaced by lug tyred wheels..

The Gemini was introduced in the 70s with the Suffolk cast iron engine and a “ sealed for life” welded chain case. The later Flymo DM  bore more than a passing resemblance . Not sure what or if there was a connection but both had a similar optional tipping barrow body which picked up on the chain case lug used by the rotor guard  and the rotors were replaced by lug tyred wheels..

Useful bit of kit - reinvented in the 80s as the Multitool!
http://www.multi-tool-store.co.uk/multi-tools-c27?gclid=CjwKCAiAx57RBRBkEiwA8yZdUAImchGnachKd5xUXK-Pg5i81ybFaCJH1KxRWrl5PsxxD_k3lIevABoCAS0QAvD_BwE

I'm a great fan of Owatrol but I think that Waxoyl or similar products such as Morris's Ankor wax are better for your purpose as they have a creeping / searching action. Another one that comes to mind is Dinitrol but I haven't seen it around lately.
Owatrol dries with a sort of soft plasticy finish and wont chip easily and is great for horticultural machinery either mixed with paint or applied over a painted finish. I use it for lawnmower cutting cylinders and deflector plates etc. The downside of Owatrol is that it seems to delay final drying for up to 72 hours, so not for someone in a hurry! 

If we get a "salty winter" keep it well washed off but not by driving through a puddle that concealed this pothole in east Croydon . Friend of mine drove into it yesterday, wrecked a wheel and tyre and possibly more. While she was calling the recovery service another driver did the same. Turns out that Thames Water had "fixed"  a leak the day before, filled in the hole, taken down the barriers and B******d off . The leak reappeared over night and washed out the fill and yesterday's rain and wet roads disguised it.   
 

A sort of male Anne Summers?

A sort of male Anne Summers?

A sort of male Anne Summers?

Use them to make a mold to create fibre glass replicas - or is the mention of fibre glass a hanging offence?

Use them to make a mold to create fibre glass replicas - or is the mention of fibre glass a hanging offence?

Electric start. Sometimes the e start machines would have a recoil unit as well but on later higher horsepower machines the recoil was absent to allow for ducted cooling.

Electric start. Sometimes the e start machines would have a recoil unit as well but on later higher horsepower machines the recoil was absent to allow for ducted cooling.

You are correct that GH was a Scientologist  but I've never heard that it extended to the tin bashing side of things!

Certainly similar to that Atco but without researching some catalogues and Parts lists I can’t remember the distinguishing features that separate the re- badged Dynamarks from the later UK made ones.