strange crank case breather

jensen · Post by **jensen** » Mon Apr 19, 2010 9:05 am

Hi all,

Yesterday evening I went through a few boxes of pre-1962 CB72 / 77 stuff trying to find a few parts for someone, when I found a very early crankcase, with, of course, the strange breather. But this breather is different then the others I encountered, it has a removable top with some kind of filter, anyone any clue ?

Jensen

teazer · Post by **teazer** » Tue Apr 20, 2010 12:26 am

My 61/62 cases have the tower breather and a circular breather that slips inside the tower and rests an a wire spring of some sort. I don't recall the top being removable, but i could be wrong. Do you have any pictures we can use to ID it?

jensen · Post by **jensen** » Tue Apr 20, 2010 1:09 am

Hi Teazer,

I have a few crankcases with this breather, but this one is different.
Yes, I'll take some pictures and put them here, but that will be in the weekend.
It probably is a self made thing from the past, I have many "strange parts" that where Macgyver 'ed by creative minds.

Jensen

jensen · Post by **jensen** » Tue Apr 20, 2010 3:40 pm

Teazer,

Here you go,

Jensen

teazer · Post by **teazer** » Thu Apr 22, 2010 12:43 am

Sorry, to take so long, but I got busy.

That looks like a P/O modification. Stock Honda breather breathes out inside the kickstarter cover as I recall.

I have a picture here somewhere of a set of 61 cases # CB72E-112157 which are still in Australia. My 62 cases 212477 did not have a breather.

jensen · Post by **jensen** » Thu Apr 22, 2010 1:09 am

Hi,

I have enough 61 cases to compare, as I see many small differences in the cases, this is a big difference, but I second your opinion,

Jensen

teazer · Post by **teazer** » Fri Apr 23, 2010 10:32 am

Jensen,

What is the number on that crankcase? It looks different to my 61 upper. For example it has two studs in teh picture coming up from the lower case. I have not seen that before.