Author Topic: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.  (Read 45043 times)

Offline Nurse Julie

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Re: Petrol Tank fuel tap removed.
« Reply #30 on: September 05, 2020, 04:15:58 PM »
Any advice as to best source for a replacement is it DS or DS for a petrol tap ?
Cheap one below knowing my luck it will not fit thought the CB400F2 is listed as suitable.

https://www.ebay.co.uk/itm/New-Honda-Petrol-Tap-Fuel-Petcock-CM185-CM200-XL100-CB400-XL125-XL175-XL185-XR/272559859130?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2060353.m1438.l2649

The USA/Canada F2 uses a different part number than the rest of the world models - it looks different in photos, too.  Not sure if they're interchangeable, though.  That Ebay link looks like my USA-spec petcock, compare that to Julie's pic above:


The eBay link you posted above Matt is the same fuel tap that DS sells for the 400/4.I did cross reference the DS part number a minute ago and I see it fits loads of different Hondas. I wouldn't know if the original one I posted a link to on CMS would fit a USA / Canada model, I must admit, I thought all the original taps were the same on all market models but maybe not 🤔

Edit.... Just looked and the USA/ Canada original tap is the same part number as every other market

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« Last Edit: September 05, 2020, 04:20:08 PM by Nurse Julie »
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 mattsz

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Re: Petrol Tank fuel tap removed.
« Reply #31 on: September 05, 2020, 04:56:10 PM »
The eBay link you posted above Matt is the same fuel tap that DS sells for the 400/4.I did cross reference the DS part number a minute ago and I see it fits loads of different Hondas. I wouldn't know if the original one I posted a link to on CMS would fit a USA / Canada model, I must admit, I thought all the original taps were the same on all market models but maybe not 🤔

Edit.... Just looked and the USA/ Canada original tap is the same part number as every other market

(Attachment Link)


I don't know about all market models either!  I'm definitely no expert here - although I have learned a lot about the differences between the '77 USA and all the other models...

I do know that CSML's 1977 USA listing shows a different part number, and a different-looking petcock, which I showed in my earlier post.  That's why I mentioned it - that Ebay link was the OP's, I wanted him to make sure he was really looking at the correct part.

If you have a copy of the Honda parts catalog which includes CB400F, CB400F1 and CB400F2 "under one roof" (available in 2 different versions at this link), you'll find the different part number for just the USA/Canada F2 models: 16950-377-701.

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Offline Nurse Julie

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Re: Petrol Tank fuel tap removed.
« Reply #32 on: September 05, 2020, 05:16:41 PM »
The eBay link you posted above Matt is the same fuel tap that DS sells for the 400/4.I did cross reference the DS part number a minute ago and I see it fits loads of different Hondas. I wouldn't know if the original one I posted a link to on CMS would fit a USA / Canada model, I must admit, I thought all the original taps were the same on all market models but maybe not 🤔

Edit.... Just looked and the USA/ Canada original tap is the same part number as every other market

(Attachment Link)


I don't know about all market models either!  I'm definitely no expert here - although I have learned a lot about the differences between the '77 USA and all the other models...

I do know that CSML's 1977 USA listing shows a different part number, and a different-looking petcock, which I showed in my earlier post.  That's why I mentioned it - that Ebay link was the OP's, I wanted him to make sure he was really looking at the correct part.

If you have a copy of the Honda parts catalog which includes CB400F, CB400F1 and CB400F2 "under one roof" (available in 2 different versions at this link), you'll find the different part number for just the USA/Canada F2 models: 16950-377-701.

(Attachment Link)
That's weird, as it says that part number fits a CB125T2 ENGLAND PA.COCK.F, CB405F. But, there is then a supersession # being 16950377702 and that number shows the riveted type like you posted a pic of earlier. I really can't see what or why there is a difference in the original part though for USA/ Canada markets 🤔🤔It could always be an error in the original parts list translation, there are plenty of them in the parts manual.
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 mattsz

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Re: Petrol Tank fuel tap removed.
« Reply #33 on: September 05, 2020, 05:52:49 PM »
I really can't see what or why there is a difference in the original part though for USA/ Canada markets 🤔🤔It could always be an error in the original parts list translation, there are plenty of them in the parts manual.

I can't either.  The "multi" parts manual I referenced earlier even has a separate "exclusive parts for each area" section which details some of the USA F2's idiosyncratic differences - like the single-stayed front fender, the different foot brake and shift linkages, the exhaust header attachment collars, the hideous fuel filler "door" - and the apparently non-serviceable (riveted?) petcock...

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Offline Nurse Julie

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Re: Petrol Tank fuel tap removed.
« Reply #34 on: September 05, 2020, 05:58:04 PM »
I really can't see what or why there is a difference in the original part though for USA/ Canada markets 🤔🤔It could always be an error in the original parts list translation, there are plenty of them in the parts manual.

I can't either.  The "multi" parts manual I referenced earlier even has a separate "exclusive parts for each area" section which details some of the USA F2's idiosyncratic differences - like the single-stayed front fender, the different foot brake and shift linkages, the exhaust header attachment collars, the hideous fuel filler "door" - and the apparently non-serviceable (riveted?) petcock...

(Attachment Link)
Have you asked the 400/4 owners on the USA forum what tap they have fitted?
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 mattsz

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Re: Petrol Tank fuel tap removed.
« Reply #35 on: September 05, 2020, 06:02:54 PM »
I really can't see what or why there is a difference in the original part though for USA/ Canada markets 🤔🤔It could always be an error in the original parts list translation, there are plenty of them in the parts manual.

I can't either.  The "multi" parts manual I referenced earlier even has a separate "exclusive parts for each area" section which details some of the USA F2's idiosyncratic differences - like the single-stayed front fender, the different foot brake and shift linkages, the exhaust header attachment collars, the hideous fuel filler "door" - and the apparently non-serviceable (riveted?) petcock...

(Attachment Link)
Have you asked the 400/4 owners on the USA forum what tap they have fitted?

Nope!  :D

I hadn't given it any thought - until just a couple of days ago when my brand-new (but cheap aftermarket) petcock I got from 4into1 demonstrated its inability to keep fuel in the tank...

Offline AndyD

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #36 on: September 05, 2020, 06:31:42 PM »
Got me a bit worried again now...
I've got three 400 tanks and all have a 20 x 1.5mm thread on the underside but everyone I check with only do a 16mm tap for the 400.
Googling to extreme boredom the only option I could find was one from the US - from 4 into 1 - which I ordered and is somewhere in transit at the moment.
Real pain if this turns out to be no good

Cheers,
Andy

Offline Nurse Julie

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #37 on: September 05, 2020, 07:07:05 PM »
Got me a bit worried again now...
I've got three 400 tanks and all have a 20 x 1.5mm thread on the underside but everyone I check with only do a 16mm tap for the 400.
Googling to extreme boredom the only option I could find was one from the US - from 4 into 1 - which I ordered and is somewhere in transit at the moment.
Real pain if this turns out to be no good

Cheers,
Andy
All this mystery with the fuel taps is telling me to respect the original one I have fitted to my 400/4. There are enough dramas going on in the world at the moment without me getting in a tiz over a tap 😁😁😁😁
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 mattsz

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #38 on: September 05, 2020, 07:20:11 PM »
Got me a bit worried again now...
I've got three 400 tanks and all have a 20 x 1.5mm thread on the underside but everyone I check with only do a 16mm tap for the 400.
Googling to extreme boredom the only option I could find was one from the US - from 4 into 1 - which I ordered and is somewhere in transit at the moment.
Real pain if this turns out to be no good

4into1 sells 2 different size petcocks for 400's: the 20mm x 1.25 for '75-'76 models, and 14mm x 1.0 for '77 models - both "genuine" Honda and aftermarket currently in stock for both sizes.  The 14mm one fits my '77 USA tank.  Do you know which size you ordered?

Offline AndyD

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #39 on: September 05, 2020, 08:03:06 PM »
Matt
It’s a m20 x 1.5 aftermarket tap - no idea why it’s so hard to find.
Cheers
Andy

Offline mattsz

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #40 on: September 05, 2020, 08:09:58 PM »
Matt
It’s a m20 x 1.5 aftermarket tap - no idea why it’s so hard to find.
Cheers
Andy

Me either - here's two from the supplier you just ordered from - hope you got the right size!

"Genuine" Honda: https://4into1.com/genuine-honda-petcock-16950-377-005-cb400f-1975-1976/

Aftermarket: https://4into1.com/honda-motorcycle-fuel-valve-petcock-20mm-x-1-5mm/

Offline McCabe-Thiele (Ted)

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #41 on: September 06, 2020, 04:40:57 PM »
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline McCabe-Thiele (Ted)

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #42 on: September 06, 2020, 04:43:12 PM »
I've finished with the gravel bit - loads of stuff came out.

Question do I have to drill out the end of the pin / rivett to remove the cap - can you buy new pins or is there a better way forwards?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Lobo

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #43 on: September 06, 2020, 10:21:34 PM »
Yep, you’ll have to drill out the rivet - if you want to do the job properly. Replacement rivets avail (I used DSS) and fairly easy to fit, though you have to be bloody careful not to damage the paint (obviously).

Offline McCabe-Thiele (Ted)

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Re: OAP Ted's CB400F2 rebuild - engine not run for about 12 years.
« Reply #44 on: September 08, 2020, 09:13:15 PM »
I'm planning to refurbish my existing Petcock photo of the outer plate below courtesy of Evaporust.

This photo has been shown elsewhere


5 hours in Evaporust by Macabe Thiele, on Flickr







Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

 

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