Author Topic: Would this Yoshimura 600 kit fit a 550? (Read 2401 times)

shawn57nomad · « **on:** August 23, 2017, 11:48:50 PM »

Wondering what the possibility of this for a daily would be? Collecting parts and building a tall list to do it once, the right way. Thanks for the help in advance!

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Scott S · « **Reply #1 on:** August 24, 2017, 05:13:51 AM »

Short answer, I'm going to say NO. At least not without some pretty involved machine work.

What's in the box? A cam or pistons or?
If it's a cam, then yes. Pistons, No.....or not easily. You have to bore the engine case to even get 550 sleeves to fit. The 600 kit is probably a 550 overbore.
You'd probably be better off starting with a 550 engine as the basis.

BPellerine · « **Reply #2 on:** August 24, 2017, 05:48:16 AM »

I think he is talking about a 550,looks to be a piston kit,get your cyls bored to accept the pistons and you will be fine.bill

Scott S · « **Reply #3 on:** August 24, 2017, 06:23:43 AM »

I swear that said 500 when I looked earlier. Maybe the coffee hadn't kicked in yet.

Stev-o · « **Reply #4 on:** August 24, 2017, 08:00:48 AM »

Buy it! Could be one of the "secrets" in the Clymer you are waiting on!

shawn57nomad · « **Reply #5 on:** August 24, 2017, 09:08:49 AM »

Scott- yes its a piston kit for a 500 and I do have a 76 550f for it. Hmm, 600cc might be a bit much or not!?! Ah, you saw the linky too

.

Bill- would this be a true 600cc?

Stev-O - Too funny! Maybe it is a "secret" can't wait on that Clymer!

Anybody have ideas on a camshaft to match? Or a Yoshimura catalog I could borrow thats period correct with part numbers, specifications and such?

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CycleRanger · « **Reply #6 on:** August 24, 2017, 09:55:25 AM »

Quote from: Stev-o on August 24, 2017, 08:00:48 AM

Buy it! Could be one of the "secrets" in the Clymer you are waiting on!

You're the friend who always says "Go ahead, I'll hold your beer." aren't you?

shawn57nomad · « **Reply #7 on:** August 24, 2017, 10:02:18 AM »

Too funny Ranger!

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BPellerine · « **Reply #8 on:** August 24, 2017, 10:10:06 AM »

Quote from: shawn57nomad on August 24, 2017, 09:08:49 AM

Scott- yes its a piston kit for a 500 and I do have a 76 550f for it. Hmm, 600cc might be a bit much or not!?! Ah, you saw the linky too.

Bill- would this be a true 600cc?

Stev-O - Too funny! Maybe it is a "secret" can't wait on that Clymer!

Anybody have ideas on a camshaft to match? Or a Yoshimura catalog I could borrow thats period correct with part numbers, specifications and such?

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you would have to look at the specs,but I think it would be very close,as an example a 900 kit for 750 is 890 in some cases,it will not be too much if you are not going to beat it bad,dont know much about 550 cams,but yoshi did make them.bill

shawn57nomad · « **Reply #9 on:** August 24, 2017, 10:18:43 AM »

Thanks again Bill!

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jonda500 · « **Reply #10 on:** August 27, 2017, 06:44:10 PM »

Quote from: shawn57nomad on August 24, 2017, 09:08:49 AM

Anybody have ideas on a camshaft to match?

I've been watching this one for a bit now, but I may never be in a position to afford it. Any one know any thing about this 'Futura" camshaft?

http://www.ebay.com/itm/HONDA-CB500-FOUR-SR1-NOS-FUTURA-TUNEUP-CAMSHAFT-WITH-BEARING/122643395824?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2055119.m1438.l2649

shawn57nomad · « **Reply #11 on:** August 27, 2017, 07:02:42 PM »

Ooooh! Hmmm. Is it compatible with 550s?

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jonda500 · « **Reply #12 on:** August 27, 2017, 07:14:33 PM »

The 500 and 550 use the same camshaft so it should be compatible?
John
Honda camshaft part number 14101-323-000 is used in all CB 500 and 550 fours (I just checked).

shawn57nomad · « **Reply #13 on:** August 28, 2017, 07:18:00 AM »

Are Futura Cams a vintage brand or European manufacturer?

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robvangulik · « **Reply #14 on:** August 28, 2017, 09:29:38 AM »

Did you click the ebay link?

It saya Via Flaminia Roma there, so I presume it's Italian......

jonda500 · « **Reply #15 on:** August 28, 2017, 03:26:37 PM »

I googled it but aside from the ebay listing, found nothing...

I also would assume it's italian, probably vintage.

Would be helpful to know if it's for street or racing use?

John

shawn57nomad · « **Reply #16 on:** August 28, 2017, 03:35:06 PM »

I did click the link and haven't come up with any information on it yet as far as if it's a street profile or anything else yet. May do the conversion from numbers given in the link.

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FJ40toy · « **Reply #17 on:** August 29, 2017, 01:11:51 PM »

Quote from: shawn57nomad on August 24, 2017, 09:08:49 AM

Scott- yes its a piston kit for a 500 and I do have a 76 550f for it. Hmm, 600cc might be a bit much or not!?! Ah, you saw the linky too.

Bill- would this be a true 600cc?

Stev-O - Too funny! Maybe it is a "secret" can't wait on that Clymer!

Anybody have ideas on a camshaft to match? Or a Yoshimura catalog I could borrow thats period correct with part numbers, specifications and such?

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I have a Yoshimura TT Special cam for the 500/ 550. Here is a picture of the spec card.

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shawn57nomad · « **Reply #18 on:** August 29, 2017, 01:13:54 PM »

Wow that's great!

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Author Topic: Would this Yoshimura 600 kit fit a 550? (Read 2401 times)