Carburetor principles

[squierka39]

If your Fleetwin is a ‘52 then it uses the earlier ignition. Coils and points are different. But, the later coils can be adapted to work but swapping them onto the old laminates.

[mercuryman]

Is the clutch engaged ?

[smokeonthewater]

Nope, she is in full drive…. the timing lever has full travel, and the boat moves foreword ….. just like Wisconsin’s motto!!

Good idea, though!

[garry-in-michigan]

This is the ’52 Fleetwin magneto –

Garry-now -in-Michigan

• This reply was modified 6 years ago by garry-in-michigan.

[frankr]

No wonder we are confused. If Garry’s picture truly is for the 1952 year, it shows coil # 580118, which is replaced by 580477 available everywhere including e-bay as previously posted. Pretty sure the 1951 coil is # 580040, made of unobtanium and priced accordingly.

[garry-in-michigan]

So here is the rest of the tory . . .

Garry-now-in-Michigan

• This reply was modified 6 years ago by garry-in-michigan.
• This reply was modified 6 years ago by garry-in-michigan.

[smokeonthewater]

Wow, great!
I remember looking in the flywheel hole some time back the coils were black and looked in good shape. I suppose I may have a 1951 ignition? I know they didn’t look all cracked like the layer coils would do
Today, I’ll be at the lake where the motor is, and I plan to get at the magneto and get some answers
I’m bringing my coil tester !
Thanks for everything, everybody!

[smokeonthewater]

Success !!
Frank, your suggestion the motor was on only one cylinder was correct!- the lower had no spark
I tore into everything at the lake yesterday, and found I have the early 1951 style coils which looked amazing, and the Stevens tester confirmed they put out a hefty spark at 1.2 amps
I cleaned the points and installed some .75 cent capacitors (.22uf) from Digi-Key in the place of the old condensers
As simple as that was, I was previously in denial the ignition could be at fault.
May this be the last time I don’t scrutinize the ignition first!
Now the motor runs at full, planes the boat with two people……
And I learned a bit more about 2-stroke carburetors!
Thanks to everyone on here who has been so generous with their information, experience and time.

[smokeonthewater]

Here is the pic!

[David Bartlett]

I love happy endings!

David Bartlett
Pine Tree Boating Club Chapter

"I don't fully understand everything I know!"

[Author]

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