Author Topic: Photos of fully seated bead of BT45, please?  (Read 1385 times)

0 Members and 1 Guest are viewing this topic.

Offline evanphi

  • Apparently I'm an
  • Old Timer
  • ******
  • Posts: 3,107
  • Rhonda the Basket Case
Photos of fully seated bead of BT45, please?
« on: February 05, 2017, 03:56:34 pm »
I'm unsure if my bead has seated fully on my new BT45. I don't think it has, but it could just be my small pancake compressor isn't jamming enough pressure in there fast enough. It worked fine for my previous rear Spitfire S11 and a front BT45.



That is the indicator line all the way around, same on both sides. This is the 17" aluminum rim from a 750A.
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive

Offline jonda500

  • I may be crazy but I'm not stupid!
  • Master
  • *****
  • Posts: 1,794
  • With our thoughts we make the world (Monkey Magic)
Re: Photos of fully seated bead of BT45, please?
« Reply #1 on: February 05, 2017, 04:05:14 pm »
I believe if you can see the line all the way round on both sides it's all good
John
Remember that an ignoramus is only someone who doesn't know something you just learned yesterday!

A starter clutch thread:
http://forums.sohc4.net/index.php/topic,122084.0.html
1972 CB500K1 original 4 owner bike
1972 CB500K1 returned to complete/original condition
1975 CB550F built from parts - project thread:
http://forums.sohc4.net/index.php/topic,149161.msg1711626.html#msg1711626
197? CB500/550 constructing from left over parts
1998 KTM 380 (two stroke) recent impulse buy, mmmm...

Offline evanphi

  • Apparently I'm an
  • Old Timer
  • ******
  • Posts: 3,107
  • Rhonda the Basket Case
Re: Photos of fully seated bead of BT45, please?
« Reply #2 on: February 05, 2017, 04:15:06 pm »
Hmmm. It just doesn't feel right. It looks too small compared to the S11. Pic for reference:

« Last Edit: February 05, 2017, 04:17:27 pm by evanphi »
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive

Offline Mr Freeze

  • Hot Shot
  • ***
  • Posts: 284
Re: Photos of fully seated bead of BT45, please?
« Reply #3 on: February 06, 2017, 07:46:37 am »
Liquid dish soap is your best friend for seating the bead. If you are unsure, deflate the tire and spread some around the bead on both sides on the rim and tire then reinflate. Often you need to go a bit over where you would have it inflated to in order for the bead to seat correctly.

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,781
  • Northern Virginia
Re: Photos of fully seated bead of BT45, please?
« Reply #4 on: February 07, 2017, 12:58:35 am »
RU-glyde is better than soap.

That tire looks good to me from here. I always mount my own, but take it to a shop if you are not sure.

Offline evanphi

  • Apparently I'm an
  • Old Timer
  • ******
  • Posts: 3,107
  • Rhonda the Basket Case
Re: Photos of fully seated bead of BT45, please?
« Reply #5 on: February 07, 2017, 07:45:39 am »
After comparing the width of the rim to the tire in that old pic and the current one, they sidewall height and everything is the same. So we are good.

I just didn't expect it to be so easy to pop on!
--Evan

1975 CB750K "Rhonda"
Delkevic Stainless 4-1 Header, Cone Engineering 18" Quiet Core Reverse Cone, K&N Filter in Drilled Airbox
K5 Crankcase/Frame, K4 Head and Cylinders, K1 Carbs (42;120;1 Turn)

She's a mix-matched (former) basket case, but she's mine.

CB750 Shop Manual (all years), searchable text PDF
Calculating the correct input circumference for digital speedometers connected to the original speedometer drive