Hi!
Last week I finished#31/66 and found 19 mm front winkerstems. To me they look original. I also finished the fully restored #24/43 and have used 17 mm winkerstems. My question to you who have single- or twodigit  CB750, please check and give me your answer what size your original winkerstems are?
Thanks in advance, Bo from Sweden.

Hi!
Yesterday when I mounted the refurbished original oilfiltercover on E43 I found there are no guideribs at the enginecase. At E302 (one of them whithout castingdate) there are two ribs as usual. I suppose these ribs appeared the same time rear left Enginebolt shifted from M8 to M10. I mean only 140 first enginecases do not have the ribs.
Please correct me if I am wrong.
Kind Regards, Bo from Sweden.

E7414 has a strange clutch cover. I have seen 10-holed with a alloypin mounted in tenth hole but never as on E7414. The clutch cover is casted as a 10-hole but the tenth hole is alloyfilled by casting. Enginecase is a normal sandcast ninehole.
Bo

On E43 there are two holes on the inside above primary chains. They are not used for anything but I suppose Honda meant to mount a guide there but never did.
Bo

Now about kickshafts. My E43, E66 and Kerrys E122 has a kickshaft with a small hole in the middle as most have. But, E302, E407 and E636 has the kickshaft with a bigger hole. Peculiar that Honda started with small hole shafts, later mounted bighole shafts and enen later Went back to smallholed shafts again.
If you look at the kickshaft with photo taken from above you can see kickshafts was zinced from factory.
Bo

Here is the Cam chain tensioner of E43. It is sandcasted, only rough brushed and clearcoated. It has never been silverpainted or polished.
Bo

Hi!
I hope I will succeed attaching my Pictures, we will see when I post this topic.
I have found two different kinds of kickshafts. If you look at the Pictures you will find at E302 there is a kickshaft with a bigger hole at the end, wide 7,5 mm, deep 9 mm. At kickshaft at E7414 the hole is much smaller, wide 3,5 mm, deep 4 mm. At E43 there is a smallholed shaft, at KP:s #28/122 (i hope I´m right about Enr) is also a smallholed shaft. At my E302, in one of the Pictures big hole, at E407, big hole. At E636 big hole. At E864 smallhole. All my others E1803, E2079, E3209, E5065 and as in second Picture E7414 have small holes.
My question: How come the production started with smallholed shafts, later used bigholed shafts and even later back to smallholed shafts.
Next question: Were kickshafts zinced or not zinced from beginning? I mean the outer end where the kickstarter is mounted. If you look at the pictures the bigholed kickshaft seems to have zink where the line around the shaft is, to get the bolt through for fastening the kickstarter. Otherwise I never has seen a zinced kickshaft.
Kind Regards, Bo from Sweden