Author Topic: Honda cb 500k3 four 1978 gearshift drum. (Read 5089 times)

kranta · « **Reply #25 on:** November 04, 2014, 09:26:58 PM »

yes, i can take some photos maybe today.

strynboen · « **Reply #26 on:** November 05, 2014, 07:10:20 AM »

yes like to see if it have extern gearbox oilpump...its that small ekstra rubber line from main filter schreen..as only 550 have

kranta · « **Reply #27 on:** November 05, 2014, 09:58:31 AM »

i can maybe take those out some day and take some pictures. and i dont hav that extra oil pump.

dave500 · « **Reply #28 on:** November 05, 2014, 11:39:50 AM »

im thinking you have a 500 bottom end with the 550 clutch fitted?

Deltarider · « **Reply #29 on:** November 05, 2014, 12:08:42 PM »

Quote

im thinking you have a 500 bottom end with the 550 clutch fitted?

Yeah, looks like it. Strange but interesting. The enginenumber could very well be a CB500K2 [ED, F, G].
You may have a look here: http://www.honda4fun.com/pdf_parts_list/pdf_spac500/CB500-76/CB500-76_2.pdf
and
http://www.honda4fun.com/pdf_parts_list/pdf_spac500/CB500-76/CB500-76_1.pdf
And if your enginenumber is really 2170315, yours is - believe it or not - the very first 500 engine that had 4 rocker shafts in stead of 8 and that is good.

kranta · « **Reply #30 on:** November 05, 2014, 09:28:05 PM »

yeah, its k3 which have 550 clutch and cover. because 500 k3 engine number is 2200008-2204080 and germany and france k2 engine number is 2166156- and my engine number is 2170315. And when i have that pan out it looks like that all gearshift forks was on one axel.

dave500 · « **Reply #31 on:** November 05, 2014, 09:55:11 PM »

we still want those photos,engine numbers don't mean much to me.

Deltarider · « **Reply #32 on:** November 06, 2014, 12:40:49 AM »

Yeah, photo's will be of great help. I wonder what gasket or sealing compound you will see when you remove the clutch cover.
BTW, what's that tube doing there between the cylinder barrel and the airplenum (middle photo)?
Has that photo been photoshopped? I seem to see a rack of new style (PD) carbs lying near the ignitionplate but the dimensions look a bit strange.

kranta · « **Reply #33 on:** November 06, 2014, 05:02:01 AM »

tube is clutch cable.

and it can look photo shoppet but it isnt.

Deltarider · « **Reply #34 on:** November 06, 2014, 05:18:19 AM »

I ment the big tube lying over the clutch house and that is attached to the bottom (right side) of the cylinder block and goes to... where?... the airplenum?

kranta · « **Reply #35 on:** November 06, 2014, 10:09:20 AM »

Here those photos

dave500 · « **Reply #36 on:** November 06, 2014, 11:35:47 AM »

at last,thats a 500 bottom end with 550 clutch assembly,the drum is locked from the top case with large bolt and the shift drum end is flat not star shaped,the lower case is straight along the bottom near the kickstart where the 550 has that curved section,the shift mechanism is 500,my guess is someone has done this modification?

calj737 · « **Reply #37 on:** November 06, 2014, 11:37:29 AM »

See reply #23

dave500 · « **Reply #38 on:** November 06, 2014, 11:40:58 AM »

see reply # 15

calj737 · « **Reply #39 on:** November 06, 2014, 11:44:46 AM »

Yep. That's why I wrote #23 in case the OP didn't notice #15. Thought your answer might have been overlooked.

I flatter myself to think that I might actually think like you, Dave

kranta · « **Reply #40 on:** November 06, 2014, 11:48:25 AM »

yeah my bike is honda cb 500 with 550 clutch. FINALY i know what my bikes bottom end is.

calj737 · « **Reply #41 on:** November 06, 2014, 11:50:09 AM »

Is there an actual problem, or are you in on archeological dig?

kranta · « **Reply #42 on:** November 06, 2014, 09:28:37 PM »

yes there was in the case have that adjusting and when i tried adjust the clutch the bolt broke and then i take that case out and reason why the bolt broke was that the old owner was broke the bolt and then he was welded the bolt up.

now i have to find new bolt.

dave500 · « **Reply #43 on:** November 07, 2014, 12:03:25 AM »

the adjuster bolt on 550s isn't replaceable by its self unless you fabricate something up,its peened over during manufacture.

"I flatter myself to think that I might actually think like you, Dave

"

no one thinks like me man!except me.

calj737 · « **Reply #44 on:** November 07, 2014, 03:57:35 AM »

That's why I always say! Hmmm. Twins separated at birth perhaps?

strynboen · « **Reply #45 on:** November 07, 2014, 07:47:22 AM »

???hov does the 550 cover fit the 500 bottom case,,,it can not be done the other vay vitaut leaking..as i see it.

.is the buttom part mashined at a bigger area so the 550 cover can seal..or are there filled some stuff in to frill aut in this 500 so the cover fit engine casing

Deltarider · « **Reply #46 on:** November 07, 2014, 11:10:23 AM »

Quote

???hov does the 550 cover fit the 500 bottom case,,,it can not be done the other vay vitaut leaking..as i see it.

.is the buttom part mashined at a bigger area so the 550 cover can seal..or are there filled some stuff in to frill aut in this 500 so the cover fit engine casing

That's what I would like to know too.

dave500 · « **Reply #47 on:** November 07, 2014, 11:57:12 AM »

the two faces only just overlap by a small amount.

dave500 · « **Reply #48 on:** November 07, 2014, 06:48:27 PM »

Quote from: calj737 on November 07, 2014, 03:57:35 AM

That's why I always say! Hmmm. Twins separated at birth perhaps?

if so im the evil twin.

calj737 · « **Reply #49 on:** November 07, 2014, 06:49:51 PM »

No doubt or dispute to that!

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Author Topic: Honda cb 500k3 four 1978 gearshift drum. (Read 5089 times)