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Author Topic: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke  (Read 8959 times)

Offline advCo

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That's the plan!


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"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline advCo

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Here's a better pic of the winding. Popped it in today and it definitely works, nice blue sparks.



But, somehow the compression is now lower than when I started, now looking at 60 psi, which is no good at all. Looks like a set of rings is in the future. Looks like this old no-ped won't be coming along to Alabama this year.


Sent from my iPhone using DO THE TON
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline DesmoBro

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #32 on: Oct 04, 2016, 22:53:33 »
It will probably run with 60
"I desire the things that will destroy me in the end"

Offline advCo

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #33 on: Oct 04, 2016, 23:07:34 »
It will probably run with 60

I dunno, I'm getting no fuel so up to the head so, vac leak somewhere?
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Online teazer

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #34 on: Oct 04, 2016, 23:13:21 »
nice work on that rewind.  Must be satisfying to see blue sparks after all that effort.  Timing is probably in the 20-24 degree BTDC range.  If it has points ( I can't remember) it's a PIA to time because you have to remove the flywheel to set/adjust them or to move the backing plate and then bolt it back on to test and repeat until you get it close enough.

Offline advCo

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Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #35 on: Oct 04, 2016, 23:32:40 »
nice work on that rewind.  Must be satisfying to see blue sparks after all that effort.  Timing is probably in the 20-24 degree BTDC range.  If it has points ( I can't remember) it's a PIA to time because you have to remove the flywheel to set/adjust them or to move the backing plate and then bolt it back on to test and repeat until you get it close enough.

Thanks. This particular model has a CDI box, but the stator plate is behind the flywheel so it has to come off to change it. I set it right on the mark according to the manual, but I need to spin the crank with a drill and put a timing light on it to get it exact.

The manual states ignition timing should be 25 degrees +/- 2 degrees BTDC @ 4k RPM.
« Last Edit: Oct 05, 2016, 00:04:09 by adventurco »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

Offline advCo

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #36 on: Oct 04, 2016, 23:53:07 »
Trying to brainstorm why this thing won't fire. Even with a blast of WD or carb cleaner in the head, with the low compression it should still at least pop or give me something.

I can only come up with 2 possible reasons, one is that the crankcase is leaking air somewhere, not creating the proper vacuum to draw mix into the cases. If this were the "case," it should still give me a little something with added fuel. 

It seems unlikely, but is it possible that the spark plug would spark while resting on the outside of the head, but for some reason not spark when installed? I'll swap out the coil tomorrow but I know the one I've been using works. I'm baffled.

  :o
« Last Edit: Oct 05, 2016, 00:01:00 by adventurco »
"He broke the mirrors off his Cadillac, 'cause he doesn't like it looking like he looks back."

74 CB360 - Luna - http://www.dotheton.com/forum/index.php?topic=63294.0
82 GS550L - Tracker-ish - http://www.dotheton.com/forum/index.php?topic=67229.0 - Sold
74 XL350 - The Turd - http://www.dotheton.com/forum/index.php?topic=70252.0
Suzuki FA50 "No-Ped" - http://www.dotheton.com/forum/index.php?topic=71189.0
73 Suzuki RV125 -http://www.dotheton.com/forum/index.php?topic=73875.0

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #37 on: Oct 05, 2016, 02:45:35 »
grab a can of starter fluid and see if that makes a difference.

Offline hillsy

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #38 on: Oct 05, 2016, 03:20:55 »
If you still have the carb uncovered put your hand over the end while you kick it over to help suck in some gas.

Offline JustinLonghorn

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Re: Suzuki FA50 Moped - "The Bumblebee," or, my first two stroke
« Reply #39 on: Oct 05, 2016, 08:10:35 »
If you have room, bring it anyway. The collective minds might be able to get it running.
I'm going to eat your brains and gain your knowledge.

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