Author Topic: Seat Cover Replacement  (Read 12103 times)

0 Members and 1 Guest are viewing this topic.

Offline janne_83

  • Full Member
  • *
  • Posts: 65
Seat Cover Replacement
« on: January 17, 2017, 11:16:19 PM »
Hello!

I've done some research for seat cover replacement on my Honda CB 500 Four (1978) but unfortunately there seems to be a  limited amount of info related to the replacement work itself (for example videos). It's also hard to find any good pics or videos about the products they are selling online.

Basically what I'm wondering the most is:
- Can you get the chrome trim off without damaging it? Is it re-usable?
- If not, where to get a new one?
- Can you get all the harware for a reasonable price for the passenger belt ("beltbuckles" and screws)
- If you buy a cover with sewn pattern, can you cover the foam from rain by installing plastic on top of it before installing the seat cover?
- If you brake the pins holding the old cover what's the good way to replace the pins?
- What are the common mistakes on the replacement process?

Based on the old topics I've been comparing some of the seat cover sellers and found three potential ones but I'm open for tips if you have any good advice on this. I think the situation might have changed on the market because the topics I've found have been at least 2-3 years old.

Some pros and cons...

Gumtwo
- pattern is sewn, not heat pressed (may be a problem in wet conditions)
+ chrome trim included
http://www.ebay.com/itm/CB550K-seat-cover-for-Honda-CB550-K3-FOUR-1977-201-/160635186954?hash=item25669a6f0a:m:mWQsA5-6yKAQ6zzsvYaeImQ

PitReplica
- missing the chrome trim
+ customer feedback
http://www.ebay.com/itm/HONDA-CB550-K-FOUR-CB550K-1977-SEAT-COVER-HASV-/180763843503?hash=item2a165d5baf:g:Ao4AAMXQvTlRg8AY

TightFitSeats
- no Honda Logo
- missing the chrome trim
+ price
+ customer feedback
http://www.ebay.co.uk/itm/Motorcycle-Seat-Cover-With-Strap-HONDA-CB500-CB550-K3-NO-HONDA-LOGO-/172471296265

Offline CB_Jeff

  • Enthusiast
  • **
  • Posts: 187
Re: Seat Cover Replacement
« Reply #1 on: January 18, 2017, 03:34:28 AM »
I have heard slot of good things about the Gumtwo covers and plan to pick one up for my 750F project.  If the bike is being stored inside I don't think you need to worry about water getting under the cover through the stitching, the occasional rainy ride shouldn't be a problem.

Offline DanJ

  • Enthusiast
  • **
  • Posts: 142
Re: Seat Cover Replacement
« Reply #2 on: January 18, 2017, 03:56:21 AM »
I just got a Gumtwo seat cover for my 750. It comes with a strap but no chrome trim.

Offline madmtnmotors

  • When did I get to be a
  • Really Old Timer ...
  • *******
  • Posts: 6,090
  • Sunny Central Florida
Re: Seat Cover Replacement
« Reply #3 on: January 18, 2017, 04:22:49 AM »
I just got a Gumtwo seat cover for my 750. It comes with a strap but no chrome trim.


+1

The chrome trim around the perimeter of the seat on the later model CB750 is held on with pins and push nuts and is reusable. I have seen strap hardware available from more than one vendor. I too used Gumtwo's seat cover:


New gator teeth upholstery strips riveted to the seat pan to hold the new seat cover:




New skin stretched into place:




All that work just for this:





I wrapped the foam with saran wrap before mounting the new cover. This is recommended to help keep the cover from hanging up on the foam. After wrapping from side to side all the way around, I trimmed the saran wrap to fold under the edges of the seat just like the new seat cover does. The new alligator teeth were pop riveted to the pan from the outside-in so I wouldn't have any bumps around the bottom edge. If the chrome is held with pins then you might try McMaster Carr. I think these from McMaster-Carr might make a suitable substitute for the seat trim fasteners:

Rivet: http://www.mcmaster.com/#97481a219/=14jkb9t

Push nut: http://www.mcmaster.com/#94807a025/=14jkbwb

I've never felt compelled to put the trim back on, but if I ever do this would probably be where I start.
« Last Edit: January 18, 2017, 04:24:24 AM by madmtnmotors »
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline 70CB750

  • Labor omnia vincit improbus.
  • Really Old Timer ...
  • *******
  • Posts: 14,792
  • Northern Virginia
Re: Seat Cover Replacement
« Reply #4 on: January 18, 2017, 06:14:22 AM »
I got my supplies for seat cover replacement from https://www.siriusconinc.com/

Good quality, they have the trim piece too.

Offline flybox1

  • My wife thinks I'm a
  • Really Old Timer ...
  • *******
  • Posts: 14,301
Re: Seat Cover Replacement
« Reply #5 on: January 18, 2017, 06:53:24 AM »
Here's the Gumtwo cover on my 74'550K.  Chrome trim and strap hardware is NOT included, but a new strap is.
Chrome trim came off the bike with a little effort, and I reused it.
Strap hardware- I assumed it was NLA.   Reuse what you have.
I had a sheet of .5mm rubber, and cut a pad for under the sewn in seat top
Use plenty of upholsterers cement, and let it cure well before taking clamps off.  If you use a chrome trim ring, this will also help keep the cover in place if a tooth is broken/missing.
« Last Edit: April 23, 2018, 12:39:17 PM by Glenn Stauffer »
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mine…"

Offline Stev-o

  • Ain't no
  • Really Old Timer ...
  • *******
  • Posts: 34,259
  • Central Texas
Re: Seat Cover Replacement
« Reply #6 on: January 18, 2017, 07:23:34 AM »
Heres a 550 seat I did awhile back.  Dont over think it, replacement is a pretty basic task.

BTW - I reused the original strap, the new ones I've seen are crap. Trim was reused too.

Sorry, I dont recall the ebay seller.
« Last Edit: April 23, 2018, 12:40:10 PM by Glenn Stauffer »
'74 "Big Bang" Honda 750K [836].....'76 Honda 550F.....K3 Park Racer!......and a Bomber!............plus plus plus.........

Offline Duanob

  • Bold Timer
  • Old Timer
  • ******
  • Posts: 4,009
  • Gotcha!
Re: Seat Cover Replacement
« Reply #7 on: January 18, 2017, 08:48:25 AM »
Pit Replica is pretty close to original looking. Here's a pic of my bike after the seat was recovered. Kind of hard to see the seat.
« Last Edit: April 23, 2018, 12:36:35 PM by Glenn Stauffer »
"Just because you flush a boatload of money down the toilet, doesn't make the toilet worth more",  My Stepfather the Unknown Poet

1974 CB360T
1976 CB550K2 Resurrected
1976 CB550F2 Barn Find
1979 CX500 VG "HONDA-GUZZI"
2007 Moto Guzzi Breva 750ie
2015 BMW F700GS
Another 1976 CB550K Cafe?

  __o
_- \_<,
(*) /' (*)

Offline jonda500

  • I may be crazy but I'm not stupid!
  • Master
  • *****
  • Posts: 1,796
  • With our thoughts we make the world (Monkey Magic)
Re: Seat Cover Replacement
« Reply #8 on: January 18, 2017, 04:12:52 PM »
I have never seen new oem belt buckles and screws for sale - unfortunately aftermarket ones are thinner, are made from stainless steel rather than chrome and have different fasteners.
The metal trim that's held on with aluminium pins and stainless steel push nuts is also not available but they are easy to remove without damaging them. I carefully picked off the pushnuts with two o ring picks, then annealed the bent over pins before straightening them out and then re-annealed them. The pushnuts got a bit mangled removing them but I was able to straighten them out.
I used a pit replica cover because it looks just like the original and is water tight.
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...

DH

  • Guest
Re: Seat Cover Replacement
« Reply #9 on: January 18, 2017, 04:30:08 PM »

Offline DanJ

  • Enthusiast
  • **
  • Posts: 142
Re: Seat Cover Replacement
« Reply #10 on: January 19, 2017, 05:29:13 AM »
I bought the chrome strip and hardware from David Silvers.

Offline janne_83

  • Full Member
  • *
  • Posts: 65
Re: Seat Cover Replacement
« Reply #11 on: February 18, 2017, 12:14:07 PM »
Thanks everyone! Great tips and cool looking seats.

After a little break, I finally decided to test this British supplier based on the customer feedback they have:

http://stores.ebay.co.uk/pkclassicbikes/

I usually leave my bike outside so I had to go with the heat-pressed material. In about a week I'll be able to start changing the cover.