Author Topic: 750F thread?  (Read 165414 times)

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Offline bender01

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Re: 750F thread?
« Reply #150 on: January 14, 2010, 03:35:42 PM »
Anyone have pics of these allen bolt kits in a black engine?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190364179802&viewitem=&sspagename=STRK%3AMEWAX%3AIT
  Id like to see if it looks as good as I am dreaming or does it look tacky? Thanks for a picture or 10.
75 550 K1
74 750 K4
1968 450 K1 Super Sport
74 750k 836 project
http://www.bikepics.com/members/bender01/
So, the strategy is to lie to people you are asking for help?

I think I'll be busy going for a ride.

Good luck!
Two Tired Quote !

Offline nobody

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Re: 750F thread?
« Reply #151 on: January 14, 2010, 03:36:41 PM »
I would probably go function over form on that one.
74 cb750k

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Offline Spanqboy

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Re: 750F thread?
« Reply #152 on: January 14, 2010, 07:25:45 PM »
Here's a pic of my '78 F with SS allen bolts.  Sourced my from www.stainlesscycle.com.

Jay sends...

Anyone have pics of these allen bolt kits in a black engine?
http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190364179802&viewitem=&sspagename=STRK%3AMEWAX%3AIT
  Id like to see if it looks as good as I am dreaming or does it look tacky? Thanks for a picture or 10.

Offline bender01

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Re: 750F thread?
« Reply #153 on: January 14, 2010, 07:48:41 PM »
Thanks Spanqboy! Thats what I was looking for. It looks good! Thats what I want.
75 550 K1
74 750 K4
1968 450 K1 Super Sport
74 750k 836 project
http://www.bikepics.com/members/bender01/
So, the strategy is to lie to people you are asking for help?

I think I'll be busy going for a ride.

Good luck!
Two Tired Quote !

Offline yoomit

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Re: 750F thread?
« Reply #154 on: January 15, 2010, 04:05:33 PM »
mine - has not been getting much attention due to the race hawk.
77f2 built by a regular member of the forum mr. mikeb4

« Last Edit: January 15, 2010, 04:08:57 PM by yoomit »

Offline 78 k550

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Re: 750F thread?
« Reply #155 on: January 18, 2010, 08:13:51 PM »
what are stock cams on these 77 750F.
is this a stock cam?
RC 327 H39 on the end.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline scroggins5000

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Re: 750F thread?
« Reply #156 on: January 22, 2010, 01:13:16 PM »
http://lpmreplicaparts.com/ I hear they are quite good but not the original color.

MUCH cheaper than my NOS set I got last year. Get fresh new grommets to hold them in place and CAREFULLY pull them off with 1 finger/whole hand in front of the tab and 1 behind. I usually do my bottom first then proceed to the top. The grommets stiffen and shrink with time making it difficult to get the covers on or off. Plus you're more likely to have a side cover blow off with old grommets. I keep a small amount of lubricant on my fresh grommets too.

Good luck on the repair Steve.

I wish I knew about this site a long time ago. Side panels are really hard to find for these bikes, and have only found one that fits. Where did you pick up your grommets?

Offline MCRider

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Re: 750F thread?
« Reply #157 on: January 22, 2010, 02:14:15 PM »
I bot all fresh grommets from Yamiya recently. 

http://www.yamiya750e.com/

"its a good feeling to know"
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Offline Jerry Rxman Griffin aka MuthaF'er

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Re: 750F thread?
« Reply #158 on: January 22, 2010, 02:33:11 PM »
what are stock cams on these 77 750F.
is this a stock cam?
RC 327 H39 on the end.

Paul


Yeah, that's stock. Wanna trade??

Jerry
As of today 3/13/2012 my original owner 75 CB750F has made it through 3 wives, er EX-wives. Free at last.  ;-)

Offline NitroHunter

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Re: 750F thread?
« Reply #159 on: January 22, 2010, 03:02:02 PM »
what are stock cams on these 77 750F.
is this a stock cam?
RC 327 H39 on the end.

Paul

I hate to be the barer of bad news but that RC 327 won't work in the F-2 head. The monster overlap of this cam causes valve-to-valve interference in the big-valve heads.
Even the RC 315 requires some massaging to avoid clipping. Sinking the valve seats deep enough for safe running clearance CAN alter the geometry to where the 315 produces close to 327 figures. Now you need chamber, throat, and port work, shim for proper spring height, aftermarket pistons with deep enough valve pockets and enough comression to compensate for blowdown...  
That RC327 is for 'K' heads.




« Last Edit: January 22, 2010, 03:04:02 PM by NitroHunter »
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Offline scroggins5000

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Re: 750F thread?
« Reply #160 on: January 22, 2010, 03:49:17 PM »
I bot all fresh grommets from Yamiya recently. 

http://www.yamiya750e.com/

"its a good feeling to know"

I wasn't sure if the K model grommets would fit or not. Thanks.

Offline 78 k550

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Re: 750F thread?
« Reply #161 on: January 24, 2010, 11:39:39 AM »
what are stock cams on these 77 750F.
is this a stock cam?
RC 327 H39 on the end.

Paul

I hate to be the barer of bad news but that RC 327 won't work in the F-2 head. The monster overlap of this cam causes valve-to-valve interference in the big-valve heads.
Even the RC 315 requires some massaging to avoid clipping. Sinking the valve seats deep enough for safe running clearance CAN alter the geometry to where the 315 produces close to 327 figures. Now you need chamber, throat, and port work, shim for proper spring height, aftermarket pistons with deep enough valve pockets and enough comression to compensate for blowdown...  
That RC327 is for 'K' heads.



Oh no tell me more.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline 78 k550

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Re: 750F thread?
« Reply #162 on: January 24, 2010, 11:41:35 AM »
Me and Terry are going back up and the manual says something about 4 copper washers under 5,6,7,and 8 in the manual. Jerry just left his house and on his way So he has most that info in his head.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline 78 k550

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Re: 750F thread?
« Reply #163 on: January 24, 2010, 03:42:29 PM »
Change of plans. Going to take the cylinder off and clean it all up.
It has stock pistons in it with the RC327 cam.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline NitroHunter

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Re: 750F thread?
« Reply #164 on: January 25, 2010, 10:03:32 AM »
It has stock pistons in it with the RC327 cam.
Paul

I would seriously question that, short of having the pockets re cut or barrels shimmed up for valve-to-piston clearance...
You say this is in a '77 F?  ???  A black 410 head casting? Without valve interference?
Pics are worth a thousand words, I just can't see how it would fit.

I think you've got a treasure trove on your hands, just not a pure F-2. How did the motor run to this point?  That RC327 was one of the baddest of the bad-a$$ed hot rod cams of the day.
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Offline xfactor

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Re: 750F thread?
« Reply #165 on: January 25, 2010, 10:14:11 AM »
My 76' 750f, just picked her up this winter for 800 bucks.





Offline 78 k550

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Re: 750F thread?
« Reply #166 on: January 25, 2010, 12:43:13 PM »
|Here are the pics.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline 78 k550

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Re: 750F thread?
« Reply #167 on: January 25, 2010, 12:44:23 PM »
one of the valves.

Paul
Paul
Littleton, CO

76/77 CB 750F, 
75 GL1000, (AKA GL1-242 NGWClub),
76 GL1000 LTD
84 GL1200 Standard
6 Bultaco's= 42, 49, 121, 152, 167, 188

Offline Porscheguy912

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Re: 750F thread?
« Reply #168 on: January 25, 2010, 02:43:45 PM »
My 76' 750f, just picked her up this winter for 800 bucks.






Is that a 914 back there?

Also did you get that bike on craigslist? I think i saw it.
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Past: 1974 CB550K

Offline Porscheguy912

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Re: 750F thread?
« Reply #169 on: January 25, 2010, 02:49:23 PM »
My 78F went from Greatful dead tribute bike to a mean street fighter....
Current: 1978 CB750F3
Past: 1974 CB550K

Offline xfactor

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Re: 750F thread?
« Reply #170 on: January 25, 2010, 02:49:34 PM »
My 76' 750f, just picked her up this winter for 800 bucks.






Is that a 914 back there?

Also did you get that bike on craigslist? I think i saw it.

Yeah its my buddies garage and that is in fact a 914.

Yes he it had it on Craigslist for 1100

Offline crp_iii

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Re: 750F thread?
« Reply #171 on: January 25, 2010, 06:22:00 PM »
anyone have any interesting alternatives to stock side panels?
I am missing my left side, and the right is on its way out.

I plan on making some side panels with Carbon fiber and epoxy if I can get my 750F road ready.  I have gotten pretty good with the stuff building my boat.
72 CB350F With poor man drag pipes
77 CB750F

Offline Don R

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Re: 750F thread?
« Reply #172 on: January 25, 2010, 09:41:11 PM »
I'm planning on a set of side covers from LPM, if I do get them I'll have an original right for sale from a 75F.
 
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Offline xfactor

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Re: 750F thread?
« Reply #173 on: January 25, 2010, 10:34:51 PM »
I am also planning on getting a set of the lpm side covers, the ones the bike were originals but are cracked beyond repair. I was also thinking about getting a drag bar.

Offline xfactor

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Re: 750F thread?
« Reply #174 on: January 26, 2010, 12:11:24 PM »
Does anyone have any pictures of their f with a drag bar? I would be interested in seeing peoples work.