Author Topic: Alternator Up Grade 32amps  (Read 98344 times)

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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: Altenator Up Grade 32amps
« Reply #200 on: July 23, 2013, 11:36:06 AM »
14.39V @ 1200rpm is a modern miracle on these bikes!
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline RAFster122s

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Re: Altenator Up Grade 32amps
« Reply #201 on: July 23, 2013, 11:41:37 AM »
Will it fit a cb650? :D
I know from the work Paulages did on his hybrid 550/650 bike the clutch side has a different taper and size and it would stand to reason the rotor and stator are going to have similar differences on the opposite side of the crank...
David- back in the desert SW!

Offline RAFster122s

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Re: Altenator Up Grade 32amps
« Reply #202 on: July 23, 2013, 11:43:19 AM »
Great news on that sweet looking charging voltage at idle. Lots of possibilities for accessories and heated gear with a higher output available.
David- back in the desert SW!


Offline Vinhead1957

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Re: Altenator Up Grade 32amps
« Reply #204 on: July 23, 2013, 01:50:56 PM »
What regulates the output?   Wouldn't that overcharge the battery?

Offline 74750k4

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Re: Altenator Up Grade 32amps
« Reply #205 on: July 23, 2013, 01:58:12 PM »
Here's  something similar including a regulator that is also plainly shown with the last one...
Who knows maybe it could be adapted?

http://www.jpcycles.com/product/380-271?source=mybuys&green=9D4906D8-27C2-5E02-9BDC-51094406AE52

Offline MCRider

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Re: Altenator Up Grade 32amps
« Reply #206 on: July 23, 2013, 03:52:47 PM »
What regulates the output?   Wouldn't that overcharge the battery?

Uh...the regulator?   ;)

The stock alt puts out more than 12v, but at higher RPM, and still not as much. The regulator chops it down.
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Offline MRieck

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Re: Altenator Up Grade 32amps
« Reply #207 on: July 23, 2013, 06:58:52 PM »
What regulates the output?   Wouldn't that overcharge the battery?
A modern regulator. 3 wires in....2 wires out (to the + and - battery terminals).
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Offline RAFster122s

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Re: Altenator Up Grade 32amps
« Reply #208 on: July 23, 2013, 07:13:21 PM »
Here's  something similar including a regulator that is also plainly shown with the last one...
Who knows maybe it could be adapted?

http://www.jpcycles.com/product/380-271?source=mybuys&green=9D4906D8-27C2-5E02-9BDC-51094406AE52


That is a Harley part, would not be compatible. The rotor looks pretty lightly built.
David- back in the desert SW!

Offline Vinhead1957

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Re: Altenator Up Grade 32amps
« Reply #209 on: July 23, 2013, 07:20:42 PM »
Now I get it the entire charging system replaced. My mind is trapped in the old system functionality

Offline 74750k4

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Re: Altenator Up Grade 32amps
« Reply #210 on: July 24, 2013, 10:42:31 AM »
Harley parts or not...  the idea is the same...  lose the battery energized field coil, and get a Permanent Magnet rotor, and a stator that will fit, or make it fit.

There are several designs of regulators for 3 phase PM Alternators.  Some more efficient, and effective than others. Still researching it. The wind power guys use em' too to charge their batteries...



Offline andy750

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Re: Altenator Up Grade 32amps
« Reply #211 on: July 24, 2013, 07:51:09 PM »
Just rode home from NH this evening after picking up my CB750K4 that had been left with Anders for the alternator upgrade. Bike started up easily, headlight seemed to be superbright even at idle (no dimming) but maybe that was just because it was 9pm and dark! Rode the 74 miles home at a good pace and the bike felt smooth and very responsive  -this would be due to the newly cleaned carbs no doubt ;)

Anyway looking forward to the Fall when I can run heated gloves and heated jacket and not have to worry about running out of juice. Photos of the setup to follow...

thanks Anders! Very professional setup and as always quality workmanship!
cheers
Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
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Offline bambuhiphop

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Re: Altenator Up Grade 32amps
« Reply #212 on: August 24, 2013, 08:52:02 PM »
How's the testing going guys or are we out of the testing phase?

Any new thoughts on a 550 version??
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Offline Mo

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Re: Altenator Up Grade 32amps
« Reply #213 on: August 24, 2013, 09:13:29 PM »
Makes me wonder. If this ever gets going for the 500, then I could possible be riding all year long in the cold Michigan weather. People might think I'm crazy, but they won't know how warm and comfy I'd be behind all that heated gear.

Offline FunJimmy

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Re: Altenator Up Grade 32amps
« Reply #214 on: August 24, 2013, 09:23:52 PM »
This is very promising development.
I'm excited to see if a 550 version will soon follow.
Thanks
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Offline mjstone

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Re: Altenator Up Grade 32amps
« Reply #215 on: August 25, 2013, 01:12:35 PM »
Makes me wonder. If this ever gets going for the 500, then I could possible be riding all year long in the cold Michigan weather. People might think I'm crazy, but they won't know how warm and comfy I'd be behind all that heated gear.

Wimp! ;)  I ride mine all winter long. Of, course a heated outfit might make it better.  ;D

MJ
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Offline andy750

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Re: Altenator Up Grade 32amps
« Reply #216 on: August 25, 2013, 01:28:18 PM »
I know Anders has put a couple of thousand of miles on his K8 already running to North Carolina (Tail of the Dragon) and back to New Hampshire. I have a 500+ miles on mine (CB750K4) and so far couldnt be happier but...waiting for the Fall weather when this upgrade will really pay off.

Heated gear on a CB750 mmmm cant wait! I have rode the last few years on the VStrom and having a heated jacket and gloves is great when its 20F out. Now this will be possible with the CB750!

cheers
Andy
Current bikes
1. CB750K4: Long distance bike, 17 countries and counting...2001 - Trans-USA-Mexico, 2003 - European Tour, 2004 - SOHC Easy Rider Trip , 2008 - Adirondack Tour 2-up , 2013 - Tail of the Dragon Tour , 2017: 836 kit install and bottom end rebuild. And rebirth: http://forums.sohc4.net/index.php/topic,173213.msg2029836.html#msg2029836
2. CB750/810cc K2  - road racer with JMR worked head 71 hp
3. Yamaha Tenere T700 2022

Where did you go on your bike today? - http://forums.sohc4.net/index.php?topic=45183.2350

Offline kc 74 550

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Re: Altenator Up Grade 32amps
« Reply #217 on: September 10, 2013, 06:30:15 PM »
any word on the 550 upgrade?  really need to upgrade mine to fit riding style.  now that the bike is closer to finished from it 3 year make over.

Offline BobbyR

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Re: Altenator Up Grade 32amps
« Reply #218 on: September 10, 2013, 07:04:16 PM »
What we are seeing is the evolution of a bike that was groundbreaking.  Now bright skilled people are taking this bike where it would have gone given time, or be, if built today.
More people will figure out how to incorporate more modern technology into these bikes without radically changing their charm, just their function.
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Offline Retro Rocket

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Re: Altenator Up Grade 32amps
« Reply #219 on: September 10, 2013, 09:24:45 PM »
What we are seeing is the evolution of a bike that was groundbreaking.  Now bright skilled people are taking this bike where it would have gone given time, or be, if built today.
More people will figure out how to incorporate more modern technology into these bikes without radically changing their charm, just their function.

Spot on Bobby.... ;)
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Offline anders288

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Re: Altenator Up Grade 32amps
« Reply #220 on: September 11, 2013, 05:54:04 PM »

   The plan is to design and make some 550 kits this winter if there is enough interest in buying them.

Offline bambuhiphop

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Re: Altenator Up Grade 32amps
« Reply #221 on: September 11, 2013, 05:56:17 PM »

   The plan is to design and make some 550 kits this winter if there is enough interest in buying them.

I can tell you I am very interested. My alternator is toast from sitting in a field for14 years so I need to replace the whole thing. I would much rather replace it with this!
« Last Edit: September 11, 2013, 05:59:45 PM by bambuhiphop »
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Offline RAFster122s

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Re: Altenator Up Grade 32amps
« Reply #222 on: September 11, 2013, 06:20:53 PM »
Any idea what the 550 kit might cost?
David- back in the desert SW!

Offline anders288

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Re: Altenator Up Grade 32amps
« Reply #223 on: September 11, 2013, 07:18:38 PM »

     The cost will be round $600.00 plus shipping if there is enough interest. I designed the 750 kit because I wanted one for myself.  I don't own any 550 .

Offline mjstone

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Re: Altenator Up Grade 32amps
« Reply #224 on: September 12, 2013, 06:39:39 AM »

   The plan is to design and make some 550 kits this winter if there is enough interest in buying them.
I'm very interested.  Just make sure you call it a 500/550 kit, otherwise you might miss an interested party.  I do believe the 500 and the 550 share the same alternator.  Don't know about the 650.

If you need a tester for it let me know!

MJ
1972 CB500Four (Honda)
1973 CB500Four (Oliver)