« previous next »
Pages: [1]   Go Down

Author Topic: cb750 charging?  (Read 705 times)

0 Members and 1 Guest are viewing this topic.

Offline tweakin

  • tear down
  • Master
  • *****
  • Posts: 1,953
cb750 charging?
« on: August 29, 2010, 01:41:04 PM »
77 cb750f
New rectifier
New strator
Dyna 3 ohm coils and Dyna S ignition.
Runs great but then after about 40 miles id continuous riding won't start due to drained battery.  Could my field coil also be bad.  The strator cover was damaged by the po.

What else?
Thanks
Logged

Offline Duke McDukiedook

  • Space Force 6 Star General
  • Really Old Timer ...
  • *******
  • Posts: 12,688
  • Wish? Did somebody say wish?
Re: cb750 charging?
« Reply #1 on: August 29, 2010, 03:03:40 PM »
I would look there after changing those other parts out.
Those new parts could be bad too, did you test them all?
Logged
"Well, Mr. Carpetbagger. We got somethin' in this territory called the Missouri boat ride."   Josey Wales

"It's Baltimore, gentlemen. The gods will not save you." Ervin Burrell

CB750 K3 crat | (2) 1986 VFR750F

Offline tweakin

  • tear down
  • Master
  • *****
  • Posts: 1,953
Re: cb750 charging?
« Reply #2 on: August 29, 2010, 04:50:22 PM »
Thanks for the reply.  That is what I suspected.  All the new parts tested out good.
Logged

Offline TwoTired

  • Really Old Timer ...
  • *******
  • Posts: 21,802
Re: cb750 charging?
« Reply #3 on: August 29, 2010, 04:59:12 PM »
Changing parts until it works is the expensive way to make repairs.
Measuring things to determine which parts need to be replaced, I find more economical.
Especially if what is wrong is a broken wire.

Cheers,
Logged
Lloyd... (SOHC4 #11 Original Mail List)
72 500, 74 550, 75 550K, 75 550F, 76 550F, 77 550F X2, 78 550K, 77 750F X2, 78 750F, 79CX500, 85 700SC, GL1100

Those that learn from history are doomed to repeat it by those that don't learn from history.

Offline bord0080

  • Full Member
  • *
  • Posts: 11
Re: cb750 charging?
« Reply #4 on: August 31, 2010, 10:42:38 AM »
If your field coil is working, you should be able to place a piece of iron (wrench, etc) next to it while it is running and it will be magnetically attracted.
Logged
Pages: [1]   Go Up
« previous next »