« previous next »
Pages: [1] 2   Go Down

Author Topic: Boot plug for intake manifold  (Read 1167 times)

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Boot plug for intake manifold
« on: May 05, 2021, 09:34:41 AM »
Hello everyone,

It seems like finding the usual boot plug for the intake manifold is nearly impossible unless someone is ready to wait for a month or two. What you guys are using to block the plug without risking a leak?

Thanks a lot
Tom
Logged

Offline Sesman

  • SOHC Master
  • Posts: 2000
    • View Profile
Re: Boot plug for intake manifold
« Reply #1 on: May 05, 2021, 11:20:43 AM »
Butt plug?.Oops,wrong forum :'(
Logged

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Re: Boot plug for intake manifold
« Reply #2 on: May 05, 2021, 06:59:12 PM »
Haha, I can’t find the real part name but this

https://www.ebay.co.uk/itm/223817430995
Logged

Offline Nurse Julie

  • 1977 CB550/4 Mongrel Brat. 1974 UK 500/4 K1. Honda CD250u.
  • Grogu
  • *
  • Posts: 8245
    • View Profile
Re: Boot plug for intake manifold
« Reply #3 on: May 05, 2021, 07:03:36 PM »
Quote from: thomaspigeon on May 05, 2021, 06:59:12 PM
Haha, I can’t find the real part name but this

https://www.ebay.co.uk/itm/223817430995
Ooooh, don't think I've ever seen them on a Honda CB SOHC/4 🤔🤔🤔🤔
Logged
LINK TO MY EBAY PAGE. As many of you know already, I give 10% discount and do post at cost to forum members if you PM me direct.
https://www.ebay.co.uk/sch/julies9731/m.html?item=165142672569&rt=nc&_trksid=p2047675.m3561.l2562

LINK TO MY CB400/4 ENGINE STRIP / ASSESSMENT AND REBUILD...NOW COMPLETE
http://www.sohc.co.uk/index.php/topic,14049.msg112691/topicseen.html#new

Offline Bryanj

  • Grogu
  • *
  • Posts: 10810
    • View Profile
Re: Boot plug for intake manifold
« Reply #4 on: May 05, 2021, 08:29:06 PM »
Never fitted to sohc4, they all have screws with soft washers
Logged

Offline philward

  • SOHC Jedi
  • Posts: 2799
    • View Profile
Re: Boot plug for intake manifold
« Reply #5 on: May 05, 2021, 08:51:48 PM »
Seen them on bikes I had in the 70's - so Z1 or GS range?
Logged
Current Bikes:-
Honda CB750K2 (1975)
Honda CB500K2 (12/1972)
Honda CR750 Replica (1972)
Honda CB350K0 (1969)
Kawasaki ZZR1100D3 (1995)
Kawasaki ZZR250 (1990) Project (Going on eBay ASAP)

Online paul G

  • SOHC Master
  • Posts: 1751
  • No room left in the garage what now !
    • View Profile
Re: Boot plug for intake manifold
« Reply #6 on: May 06, 2021, 07:57:45 AM »
Z650 has them :D
Logged
Honda CB400 4
Honda CB550 K3 (sold)
Honda CB750 UK K1
Kawasaki Z650 C2
Kawasaki Z650 cafe racer (Sold)
Honda CD175 sloper

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Re: Boot plug for intake manifold
« Reply #7 on: May 06, 2021, 11:37:44 AM »
Hey everyone. As odd as it sounds it’s a CB550J3 with F1 carbs. Please find the photo below. Also my idling is hanging when hot for a few seconds. I don’t know if that’s linked. But I struggle to get it running smooth.

Logged

Offline Bryanj

  • Grogu
  • *
  • Posts: 10810
    • View Profile
Re: Boot plug for intake manifold
« Reply #8 on: May 06, 2021, 12:09:15 PM »
And those jubilee clips are too wide so will cause air leaks
Logged

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Re: Boot plug for intake manifold
« Reply #9 on: May 06, 2021, 09:35:27 PM »
Nicely spotted Brian, it’s hard to find the right jubilee clip size so feel free to send me a link. Thanks
Logged

Offline Bryanj

  • Grogu
  • *
  • Posts: 10810
    • View Profile
Re: Boot plug for intake manifold
« Reply #10 on: May 07, 2021, 02:22:18 AM »
I bought some of these from ebay, item no 402702096350
Price gone up since i got mine and still a fraction big but a lot better.

Cany seem to get my dumfone to copy links but then its still to smart for me, i still get problems with 2 cans and string!!
Logged

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Re: Boot plug for intake manifold
« Reply #11 on: May 07, 2021, 09:30:35 AM »
Haha No problem Bryan, I found it. It’ll take a month to arrive though. Do you know the bandwidth of yours?
I found some 9mm (which is 3mm less than mine), is it narrow enough?
Also I found some cb550 inlet manifold in Germany for £40, worse the shot? I guess I’ll have to change the O-ring straight away. Find the links below. Cheers

https://www.ebay.co.uk/itm/253627467056
https://www.ebay.co.uk/itm/373513175775
Logged

Offline Bryanj

  • Grogu
  • *
  • Posts: 10810
    • View Profile
Re: Boot plug for intake manifold
« Reply #12 on: May 07, 2021, 10:15:23 AM »
O rings are same as tappet caps so readily available, if the rubbers are soft enough to use those are wrth a shot i will measure the clips i got seem to remember 8 or 9mm, you will need to cut off lots of extra when you put them on
Logged

Offline mickwinf

  • SOHC Master
  • Posts: 1748
    • View Profile
Re: Boot plug for intake manifold
« Reply #13 on: May 07, 2021, 07:01:23 PM »
if you have not ordered the maniolds i have a pair of the correct ones, £25 pair plus post
Logged
Love the 500 and 550 have a 500 called Lazarus under restoration

Offline thomaspigeon

  • SOHC Associate
  • Posts: 51
    • View Profile
Re: Boot plug for intake manifold
« Reply #14 on: May 08, 2021, 12:34:01 AM »
@oddjob, jubilee clips ordered. A bit expensive but if that does the job I’ll be happy. Thanks for the tip.
Logged
Pages: [1] 2   Go Up
« previous next »
 
SimplePortal 2.3.5 © 2008-2012, SimplePortal