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Author Topic: $50 mod thread  (Read 287490 times)

Offline CCRider

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Re: $50 mod thread
« Reply #60 on: Jan 04, 2009, 00:13:29 »
That scares me! There is no voltage regulation at all. maybe my bike is just weird. I have 3 yellow wires from the alternator. I ran these through a voltage rectifier (a 3 phase one I made with diodes.) and a capacitor rated for 50v. (to smooth out the voltage ripple.) My plan was to measure the results and then figure out what to do about the voltage regulation so I could bring it down to about 14v to charge the batt. I hooked it up started my cb400 and watched my DMM peak at over 100v and then the capacitor exploded. Maybe the cb350 isn't wired the same and doesn't need a regulator, or has a seperate one. My bike (and many others, I'd wager.) had an intergrated rectifier/regulator. This would replace the rectifier part but not the regulator. It might even work fine, but consistantly overcharge the battery. The voltage would drop to the battery voltage, but nothing would stop it from rising beyond the 13.5v or so of a full battery; cooking the bejesus out of your battery.

Represto:
    If your bike was designed to work with just a rectifier and no regulator as the above diagram indicates; this would be much better then the oldschool selenium one. It should work better then brand new.


The CB 350 has a seperate voltage regulator.  CC

Offline johnson_steve

  • Posts: 351
Re: $50 mod thread
« Reply #61 on: Jan 04, 2009, 00:52:14 »
i used one just like the one above that i got on ebay on a buddies 350 WORKED GREAT!!!! I MEAN GREAT!!!! i have that same thing sitting in my parts bin for my CB350 build waiting to go on as well

although i do have to say Steve knows his Shit when it comes to wiring... Ill call up Amaya a bit later today to see if he has had any issues with the 350 i got going for him a few years back

My bike isn't wired the same as a 350 at all. This prob. works great for a 350; I couldn't tell you as I don't have one to look at. I'm just saying don't replace a rectifier/regulator with just a rectifier. It is also posible that I'm being over cautious. maybe 40 years ago in an automotive application a little cooking of the battery on long trips was acceptable.

Edit: Thank you CC for pointing out that the cb350 has a separate voltage regulator. that would make this a drop in upgrade for the cb350. If you bought one on ebay I hope you didn't overpay too much for a $2 bridge rectifier.


This circuit diagram clearly shows the rectifier directly connected to the battery with no voltage regulation at all. This was the initial cause for my concern. I would like to reasure you that this mod should work great exactly like it was posted despite this diagram being wrong for the cb350 and with some modification it could be made to work on any bike with a seperate voltage regulator.
« Last Edit: Jan 04, 2009, 01:17:14 by johnson_steve »

Offline JRK5892

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    • The Powder Pro
Re: $50 mod thread
« Reply #62 on: Jan 04, 2009, 02:11:10 »
ha ha ha oooh i did of course... think i paid 30 bucks...
Joe
"your life is an occasion, Stand up to it"
www.thepowderpro.com

recent builds: Hd street bob, TX cafe, KZ bratt, Goldwing tour, bratt wing, st fighter, road king, vriago bobber, chop, FXD, 1200 sporty, 1200xl sporty, GSXR, Royal enfield.. and more

Offline johnson_steve

  • Posts: 351
Re: $50 mod thread
« Reply #63 on: Jan 04, 2009, 02:36:32 »
ha ha ha oooh i did of course... think i paid 30 bucks...

Current list price: $1.69 ($3.29 if you shop at ripoff shack.)

How do you get the bike on and off that table?
« Last Edit: Jan 04, 2009, 03:12:08 by johnson_steve »

Offline CCRider

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Re: $50 mod thread
« Reply #64 on: Jan 04, 2009, 10:40:56 »
Current list price: $1.69 ($3.29 if you shop at ripoff shack.)


I paid the outrageous R/S price. CC

Offline johnson_steve

  • Posts: 351
Re: $50 mod thread
« Reply #65 on: Jan 04, 2009, 12:48:34 »
Don't get me wrong RadioShack has it's place (My brother works there.) If you need something 'now' and they have it you have no other options. They just seem more interested in selling cell phones now then stocking this type of product; which is sad because I remember when I was a kid RS had 2 asiles full of this kind of stuff and you could get everything you needed for a project right there, now it's 2 small sections of drawers at the back of the store. I stock a much wider variety of electronics components at my home then the local RS. You get a much better deal when you get this kind of stuff mail order.

Offline boomshakalaka

  • Posts: 1604
Re: $50 mod thread
« Reply #66 on: Jan 04, 2009, 18:07:46 »
Don't get me wrong RadioShack has it's place (My brother works there.) If you need something 'now' and they have it you have no other options. They just seem more interested in selling cell phones now then stocking this type of product; which is sad because I remember when I was a kid RS had 2 asiles full of this kind of stuff and you could get everything you needed for a project right there, now it's 2 small sections of drawers at the back of the store. I stock a much wider variety of electronics components at my home then the local RS. You get a much better deal when you get this kind of stuff mail order.

agreed.

Offline Terry

  • Posts: 236
Re: $50 mod thread
« Reply #67 on: Jan 04, 2009, 20:22:53 »
this is a fantastic thread!!!  I've already used the epoxy paint trick on my triple threes, lever perches, and headlight shell.  As for the wheels I'm gonna use some Eastwood "warm silver" to get that 60's MGB painted wire wheel look on the hubs and spokes.  My girlfriend swears I'm gonna get cancer from the all the fumes, if the ciggies don't get me!!!  I've also used the polishing info on the fork sliders and the improvement is just incredible, must be a 500% improvement.  And all this started from a simple wiring fix in the head light shell, then stering head bearings and now this.  I've never had so much fun!!!!  thanks so much for the info and the inspiration!!!  The XS650 is really coming along to being the near-Triumph that I wanted all along.

Terry
J'ville, Fl

Offline JRK5892

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    • The Powder Pro
Re: $50 mod thread
« Reply #68 on: Jan 05, 2009, 02:38:45 »
steve i have a ramp from my bike trailers so i just use that... getting 5 more milk crates to bring it up another level while i start all the final touches... also found my REAL wheel chuck so i will use that so no longer need the straps to hold it in place... post pics tomorrow
Joe
"your life is an occasion, Stand up to it"
www.thepowderpro.com

recent builds: Hd street bob, TX cafe, KZ bratt, Goldwing tour, bratt wing, st fighter, road king, vriago bobber, chop, FXD, 1200 sporty, 1200xl sporty, GSXR, Royal enfield.. and more

Offline Bouncer

  • Posts: 87
Re: $50 mod thread
« Reply #69 on: Jan 06, 2009, 19:22:25 »
Ok so I did this about a month ago and I am kind of spurring off of the thread starters bike platform post.

I am a carpenter by trade, kinda, with the market the way it is I am now a suit for a while.... grrrr

I put this baby together for an eyelash under $50 with a contractor discount.

( 8 ) 8' 2X4
(2) 8' 4X4
(1) 4'X8' sheet of 1/2" plywood
(16) 1/2" X 7" long lag bolts
(32) 1/2" washers
(16) 1/2" nuts
A few solid nails and some Liquid nails (also known as flooring adhesive)

The total dimensions are 32" deep 36" tall 8' wide (Well thought out for the space in my garage, and my height)

 



I could jump up and down on this baby and it wouldn't move a 1/4 inch. SOLID

My previous work bench:

« Last Edit: Jan 06, 2009, 19:29:39 by Bouncer »
Doing the same thing over and over and expecting different results is madness. -Mark Twain