S90 Update 7 – Magneto Repair

I am fascinated with the magneto, and how it allows for a self contained engine that produces electricity to power the spark plugs which then powers the magneto and back again. No matter how much tech I learn I still find that idea absolutely amazing.



As you would imagine mine being 50 years old was worn out either by wear and tear or the elements so I had to get it fixed.

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S90 Update 6 – Wheels and Tires

The bike came with 1.4′ rims (I think), and 2.50-18, 2.75-18 tires front and rear. They’re toast.

If a rim is that bad the tires can’t be any good either. They’re the ‘Sony’ local brand you can find only at Caloocan and in the provinces I think, preferred by tricycles for their super low price but relative ok durability for hauling stuff around.

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S90 Update 3 – Paint and Style Options

Since the last update I’ve sold the Black EX3 to Doc Erwin for 26k + an old S90 engine he bought recently. There’s a lot of feels about my selling that bike but I won’t get into that now, I might write about that when he picks it up this week. I picked up the donor engine and brought it my mechanic Feds. A few days ago he opened up the engine and sent me pics and here they are.

The welding part apparently came off but he said that the welding is at a spot where it’s supposed to keep the main bearing in place. So if you put a bearing there it will just fall off since nothing will stop it. This is bad but he’s not yet sure it might be able to get fixed.

Now here are the pics of the donor engine.

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