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#6611 - 12/19/05 3:03 am boyer with out battery  
Joined: Nov 2005
Posts: 54
jim t Offline
BritBike Forum member
jim t  Offline
BritBike Forum member

Joined: Nov 2005
Posts: 54
Nor-Cal.
has any one found a way to run a Boyer with a mity max or other eliminator? i am in the process of restoring a build i did in 1970. 64 a50 frame 70 modified engine. i originaly built this as a custom cafe bike. the old chrome work is now pretty shoddy but it will still be a neat bike. i have a mity max but i think i remember it's being shot. anyone know a way to bench test one of those with an ohm meter? how about a source for a new tech small battery? the design does not allow for a conventional battery. thanks in advance for any info. jim


on the road 65 t120 modified
by spring? 64 A-65 modified 68 Bonneville stock
in progress x-75 Hurricane T-140 Trackmaster
back burner 68 Bonneville 66 Tr6 69 Trident
other 99 Hd FXDX modified Honda Xl 350
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#6612 - 12/19/05 6:13 am Re: boyer with out battery  
Joined: Apr 2005
Posts: 662
Riff_Raff Offline
BritBike Forum
Riff_Raff  Offline
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Joined: Apr 2005
Posts: 662
Arizona Territory
Jim, I've never run a Boyer & don't run batteries, but no doubt others can help you with those questions.

On the Mity Max, I don't know if there's an accurate way to bench test 'em, but they're usually pretty durable. Some time ago, I took a brand new Mity Max & 3 used ones & with a digital multimeter, touched the leads to the various wires & charted the readings. All 3 used ones were within 1 or 2 points of the readings on the brand new one (direct out of the package & before installation on the chop) so I'm "assuming" that the old ones are still good.

Also tested an old Mini Mite by R&R, but those readings were erratic, so it's probably toast.

If you give me a couple days, will try to either find the chart or will take the readings on the Mity Max's again & post the #'s for ya. At least that way, you can compare to see if your's might still be viable.


"Factory Stock Is A Suggestion Only"
#6613 - 12/19/05 8:23 am Re: boyer with out battery  
Joined: Sep 2005
Posts: 228
Melbourne Metisse Offline
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Melbourne Metisse  Offline
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Joined: Sep 2005
Posts: 228
Melbourne, Australia
No worries. My TR6C Métisse has an analogue Boyer, Boyer PowerBox, Boyer double ended coil and no battery. Easy starter (esp with a Mikuni that's got a proper choke!) and big fat blue sparks. Just tell Boyer what spec alternator you're running and they'll spec the rest. Sorted.

#6614 - 12/20/05 1:45 am Re: boyer with out battery  
Joined: Apr 2005
Posts: 662
Riff_Raff Offline
BritBike Forum
Riff_Raff  Offline
BritBike Forum

Joined: Apr 2005
Posts: 662
Arizona Territory
(FWIW) Digital Multimeter readings from 2 different Mity Max's, using ohms, settings 2K & 20K

Setting 2K - Mity Max #1
Touching multimeter leads to:
Black wire to Green wire = .593
Black wire to Green wire = .583
Red wire to Green wire = 1.
Red wire to Green wire = 1.
Red wire to Black wire = 1.
Green wire to Green wire = 1.176

Setting 2K - Mity Max #2
Touching multimeter leads to:
Black wire to Green wire = .585
Black wire to Green wire = .586
Red wire to Green wire = 1.
Red wire to Green wire = 1.
Red wire to Black wire = 1.
Green wire to Green wire = 1.166

Setting 20K - Mity Max #1
Touching multimeter leads to:
Black wire to Green wire = .59
Black wire to Green wire = .58
Red wire to Green wire = Readings climb up to around 19.90 then stop at 1_.
Red wire to Green wire = Same as above
Red wire to Black wire = Same as above
Green wire to Green wire = 1.17

Setting 20K - Mity Max #2
Touching mulitmeter leads to:
Black wire to Green wire = .59
Black wire to Green wire = .58
Red wire to Green wire = Readings climb up to about 19.98 then stop at 1_.
Red wire to Green wire = Same as above
Red wire to Black wire = Same as above
Green wire to Green wire = 1.17

Please remember that these were just about the same as the readings on the brand new Mity Max (now installed) HTH...


"Factory Stock Is A Suggestion Only"
#6615 - 12/20/05 3:30 am Re: boyer with out battery  
Joined: Oct 2005
Posts: 118
Ol' 441 Offline
BritBike Forum
Ol' 441  Offline
BritBike Forum

Joined: Oct 2005
Posts: 118
Colorado Springs, Colorado
I do know some guys that run their street bikes with no battery using a capacitor instead...
I might be able to dig up the information if you really need it but I'm sure I'll have to dig deep since I've recently moved and things are still all in a mess <sigh>

Let me know,,,
Ol' 441


Ol' 441
#6616 - 12/20/05 6:25 pm Re: boyer with out battery  
Joined: Nov 2005
Posts: 54
jim t Offline
BritBike Forum member
jim t  Offline
BritBike Forum member

Joined: Nov 2005
Posts: 54
Nor-Cal.
thanks for the readings riff-raff. i'll sort this one out based on that and see what happens. ol'441, thanks for the input. i know how to do that and actually ran that bike for years that way with points. what i am shooting for is to hide as much as i can from view. the capacitor has to hang off the spring and is easily seen. most of the wiring is going in the frame etc. as i get a bit farther along i may post some pics. picture cannister oil bag, molded frame ciriani forks polished, xr style tank low to flat bars, custom paint etc. it was pretty much like that when i built it years ago but was my only bike at the time so i kinda rushed through the build. now i have the time to pay more attention to detail.


on the road 65 t120 modified
by spring? 64 A-65 modified 68 Bonneville stock
in progress x-75 Hurricane T-140 Trackmaster
back burner 68 Bonneville 66 Tr6 69 Trident
other 99 Hd FXDX modified Honda Xl 350
#6617 - 12/21/05 12:15 am Re: boyer with out battery  
Joined: Apr 2005
Posts: 662
Riff_Raff Offline
BritBike Forum
Riff_Raff  Offline
BritBike Forum

Joined: Apr 2005
Posts: 662
Arizona Territory
Ubetcha, Jim...

Have never run a Boyer. I also don't run a battery, just a Mity Max w/internal cap. There's critics of this basic system, but it's taken me on 300 mile runs with no problems & I'm sold on it.

Sounds like you've got a fun project on your hands. Here's hoping it all works out for ya! bigt


"Factory Stock Is A Suggestion Only"

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