Joe Hunt magneto

Years ago I welded a few tanks with the exhaust method, but does it still work now we have all got catalytic converters?
 
A good welder would fill the tank with Argon gas which will then be able to weld safely the welder would have plenty of Argon gas for his mig welder, car exhaust will also works, working at a TEC college I seen a few fuel tanks getting repaired using Argon gas to inherit the fumes that go bang.
 
I have been reading this magneto thread with interest, but it appears to me that they do not have an advance curve? If true, seems like a negative to me. My 1958 Cushman Eagle and 1959 Mustang Pony each had magnetos that ran the lights and ignition. Lights were bright. Only wiring was to a kill switch and the lights.
 
ashman said:
A good welder would fill the tank with Argon gas which will then be able to weld safely the welder would have plenty of Argon gas for his mig welder, car exhaust will also works, working at a TEC college I seen a few fuel tanks getting repaired using Argon gas to inherit the fumes that go bang.
Click to expand...
Running an exhaust pipe from a running engine into the tank will accomplish the same thing.
 
I have done a few tanks using the exhaust gas from a car, but now since I have a TIG welder I use Argon. Both ways work. The idea is get all the oxygen out. The first time I tried this I was sceptical because the guy who told me about it sometimes would not have his facts straight. I filled the tank with exhaust gas then I tried to ignite it by dropping matches in the tank. The matches went out as soon as they went into the tank.
 
One of my cousin's up Cape York on his cattle station thought it was safe to weld a diesel tank without doing the exhaust trick how wrong he was, it exploded killing him, if only he ran the exhaust through it first, I only found out about his death a few weeks ago.
Anyway this is about Joe Hunt Maggie's, not about fuel tanks, how things go of course.
 
Advance curve for a JH the faster they spin up the bigger the spark, as I have said on many many occasions my JH work great at all rev ranges, idles perfect great around town at low revs, open the throttle and it just goes and never loses power, it just gets better, set at full advance and the best thing of all always starts on first kick every time, most of the time it's running 1/2 way on the kick and they are simple to work on, as I write this my tune up kit and new front cover (always good to have a spare) has just been delivered, parts are easy to get and of course they are rebuildable, but they are so reliable no matter how the weather is.
Advance curve, what's that.
 
As mentioned earlier, I bought two from JS, one for me and one for a mate. Mines for a build that is still in progress, but his is fitted, he’s chuffed to bits with it, he hasn't ridden it yet but says it starts easier and has a real ‘crack to it’ …

Joe Hunt magneto
 
phippsy said:
Years ago I welded a few tanks with the exhaust method, but does it still work now we have all got catalytic converters?
Click to expand...
Yes, all the cat does is reduce the nasty pollutants, the gas coming out is still fuel free and hardly any oxygen.
 
Fast Eddie said:
As mentioned earlier, I bought two from JS, one for me and one for a mate. Mines for a build that is still in progress, but his is fitted, he’s chuffed to bits with it, he hasn't ridden it yet but says it starts easier and has a real ‘crack to it’ …

View attachment 103649
Click to expand...
With magneto and electric starter, would it be more possible to run the full advance?
 
At slow spin the JH will throw out a big spark no matter what, nothing comes close to a JH spark.
 
If I had a Commando, one thing I would NOT do is hang a Joe Hint magneto on the side of it. Nothing else could possibly look so wrong.
'Because I can' is never a good reason for doing anything.
What we need is a very small Lithium battery, then we could run a programmable Boyer and a fuel injection system. It would turn an 850 Commando into an R1.
But why not just but an R1 and a new piece of furniture for the living room ?
 
Last edited:
acotrel said:
If I had a Commando, one thing I would NOT do is hang a Joe Hint magneto on the side of it. Nothing else could possibly look so wrong.
'Because I can' is never a good reason for doing anything.
What we need is a very small Lithium battery, then we could run a programmable Boyer and a fuel injection system. It would turn an 850 Commando into an R1.
But why not just but an R1 and a new piece of furniture for the living room ?
Click to expand...
Wow…

I had no idea that fuel injection could quadruple the horsepower!

Can you post a link to this kit please?
 

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