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Author Topic: Boot plug for intake manifold  (Read 1667 times)

Offline thomaspigeon

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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
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Offline Sesman

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Re: Boot plug for intake manifold
« Reply #1 on: May 05, 2021, 11:20:43 AM »
Butt plug?.Oops,wrong forum :'(
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Offline thomaspigeon

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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
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Offline Nurse Julie

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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 🤔🤔🤔🤔
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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.
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Offline Bryanj

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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
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Offline philward

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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?
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Offline paul G

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Re: Boot plug for intake manifold
« Reply #6 on: May 06, 2021, 07:57:45 AM »
Z650 has them :D
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Offline thomaspigeon

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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.

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Offline Bryanj

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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
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Offline thomaspigeon

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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
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Offline Bryanj

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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!!
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Offline thomaspigeon

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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
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Offline Bryanj

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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
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Offline mickwinf

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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
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Love the 500 and 550 have a 500 called Lazarus under restoration

Offline thomaspigeon

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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.
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