Search results

  1. Luis Etchenique

    '79 CB750F super sport / DOHC -- replacement rear brake master cylinder

    any idea if this one would work ? has anyone used it ? https://photos.app.goo.gl/QsCG2yff9L2ktGEG8
  2. Luis Etchenique

    Oh crud - rear brake master cylinder is toast. Ideas on replacement?

    hello tdskip -- same here, I'm looking for a replacement unit for my CB750f s/s DOHC ... any luck on your search ? thank you ! -- Luis
  3. Luis Etchenique

    '79 CB750F super sport / DOHC -- replacement rear brake master cylinder

    hello CB750 friends - in the proces of resto-modifying ( into a race replica ) my CB750F s/s, like most of the bike ... the rear brake's master cylinder is completely gone -- I had to cut it off from the footpeg brackets, since it was welded by years of galvanic corrosion so my question is...
  4. Luis Etchenique

    Fuel Tank compatibility -- CB750F Super Sport DOHC / CB400T

    looks, AMC49, like the right thing to do will be bite the bullet and invest in the correct tank so many times I’ve tried shortcuts and ended up lost — or broke ! 😉 stay tuned, Boss ... 🏁
  5. Luis Etchenique

    build done 97%, honda cafe racer 1981 DOHC, crazy look

    impressive beast — very well done, Sir ! 🏁
  6. Luis Etchenique

    Fuel Tank compatibility -- CB750F Super Sport DOHC / CB400T

    hello esteemed group members, QUESTION - are the CB750F Super Sport ( DOHC ) and CB400T fuel tanks identical ? if not ... are they compatible as far as mounting anchoring points ? would major mods be needed ? ------ im having a hard time finding a fuel tank for my CB750F S/S ( DOHC ), so I...
  7. Luis Etchenique

    '79 CB750F Super Sport / Engine Finish

    https://photos.app.goo.gl/qtPLVhKjeaEKrKps7 https://photos.app.goo.gl/TCgZj7F5f599vMSU8 ... I saw these pics on the cb750.com FB page, and looks like the owner has prepared his engine quite well for a soda-blast session. Clever stuff ! All intake & exhaust ports are safely sealed as well as...
  8. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    thank you for the advice, pidjones ! :thumbsup:
  9. Luis Etchenique

    '79 CB750F Super Sport / Engine Finish

    The engine of my restoration functions well, and all it needs is to recover its original shine. This is the silver-painted version, but I'm not interested in re-painting; can I soda-blast the engine as a unit ? ( engine has been removed from frame ). All openings ( exhausts, carbs, etc ) have...
  10. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    work-in-progress ... carburetor rebuild completed -- including bench-sync, and I must say thank you AMC49 and also state that the tutorial by McGregor Carb Services has been simply <<invaluable>>; thank you to both ! here is a pic during the carb rebuild; enjoyed every minute of it...
  11. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    ... man, tons of reading homework ahead ! I will reassemble “as is” and when this thing <<some day>> starts back again, it should be easy to re-jet as needed — for I will rebuild without side covers or bulky airbox, will relocate battery & electrics ... so access to carbs will be simplified...
  12. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    https://photos.app.goo.gl/wvDDEcB2awcy54Zs7 https://photos.app.goo.gl/waAqhuwLthjfiE2H8 indeed, AMC49 -- looks like that's a positive ID if I ever saw one ... so ... I intend to use a low-restriction exhaust ( still WIP ) and an airbox similar to the photo above with that in mind -- should...
  13. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    ... in the process of rebuilding the carbs on my '79 CB750F S/S ( with stock airbox ) I now notice the jetting for the primaries is "68", and for the secondaries is "98" my research tells me that stock jetting is 68 for the primaries, <<but>> that the secondaries should be 100 or 102 ... any...
  14. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    ... replying to my question above -- I have found a source for the O-rings which are the Viton ( FKM ) spec for carburator/gasoline applications. The company is www.rocketseals.com and they have an outstanding customer service. I communicated with Conner ( conner@rocketseals.com ), and my...
  15. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    ... lots going on with the '79 CB750F SS resto-mod ( including exhaust build in progress ) at this point I am in need of the following O-rings for the carbs re-build:  Qty 7 -010 Fuel rail O-rings (one spare)  Qty 7 -007 Accel pump O-rings (one spare)  Qty 5 -003 Pilot screw O-rings (one...
  16. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    U P D A T E -- ... yes, progress is SLOW, but here is where things stand as of now. The left side headers are coming along. Although it might look simple, to get the correct radii on the bends was tricky stuff. The #2 header is made from three sections and #1 from two. Before moving on, all...
  17. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    AMC49 -- I could've NEVER imagined the physics involved when it comes to the design and engineering of exhausts systems. I've been doing some reading, and I'm in awe about its intricacies and complexities. Been having a great time talking with my 27 year old daughter --a physicist specialized...
  18. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    100% in agreement, AMC49. The "uphill" direction of travel of the system simply doesn't work, and the sound is perhaps the worst I've heard in quite some time. We'll see, but I think the series of bends and turns in mine will add some "complexity" to the sound waves, and should result in a bit...
  19. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    As I progress with my fabrication, I come across this work by the folks at MAD Exhaust. Seems like the only elevated 4 into 2 commercially available for the CB/DOHC engine. It doesn't quite work for me: the *idea* is similar, but my approach ( in many ways ) is quite different...
  20. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    AMC49 -- thanks for the CB1100f.net page referral; and I love the idea of reducing pressure loss by increasing volume. WEZ -- collecting 1+3 and 2+4 <<although mechanically efficient>> would not only add to the complexity of fabrication and require additional space, but it would have a bit of...
  21. Luis Etchenique

    Replacing headers and exhaust 1980 CB750C

    Not sure about the compatibility with other CB DOHC models, but keep in mind that practically every used exhaust --if it has no visible holes-- will likely be paper-thin with rust and corrosion. Stock Honda exhausts were quite well designed and engineered -- but costs had to be kept down. If...
  22. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    AMC49 -- I'll have to bill you for the additional length of oil cooler hose, but somewhere on my build, I'll save a spot to add the initials "AMC49" ... ;-) thanks ! https://photos.app.goo.gl/hMAU8Whs8UW6WrDD9
  23. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    I see exactly what you mean, AMC. As far as the intake, I will be using one of those multiple-pod filter canisters for the sake of a clean and uncluttered look. That now-empty space where the airbox and battery used to coexist will be used to route the secondary pipes, zigzagging in-and-out of...
  24. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    Thanks AMC -- I've been doing some reading on the subject and you're 100% correct on all points. I am extremely puzzled by the works and the dynamics of exhaust systems -- and how they defy common sense at my level. One of the mandatory questions I have is: Since the Honda engineers merged #1...
  25. Luis Etchenique

    '79 CB750F SS -- 4 into 2 exhaust fabrication

    The process of restoring/modifying a CB750F SS which I have recently acquired includes --among many other things-- includes the fabrication of an exhaust system; I was wondering if anyone in the group has done this in the past -- and what the experience was ( or is ... ) like. The easy route...
  26. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    will do my friend -- awesome help ! :cheers:
  27. Luis Etchenique

    Exhaust collar install 1982 dohc cb750

    not sure if this is the setup you have on your machine -- but this is from my '79 S/S and I suspect they are similar ... if not identical https://photos.app.goo.gl/9PByWNt1TSzHUhm79 this is how the collars should be oriented, and of course placed around the headpipe -- and if you position it...
  28. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    thank you very much, AMC49 -- so according to the info I have so far obtained, I'll follow the following steps: 1) fully disassemble carbs bank and the individual units; 2) full cleanup of all parts; 3) as I assemble, I'll replace all o-rings and washers, and ONLY THEN I'll decide which parts...
  29. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    Randakks carb rebuild kit / '79 cb750f ss thank you Wez -- man, tons of info and certainly the right way of doing it; so ... from the link you included, I located this kit from Randakks, which they recommend: https://www.randakks.com/honda-dohc-4-randakk-master-carb-overhaul-kit.html so it...
  30. Luis Etchenique

    '79 CB750F Super Sport -- Carburator Rebuild Kit

    Can anyone recommend a carb rebuild kit for a '79 CB750F Super Sport ? I have been told the '79 is *unique* in that it had metal tabs on the floats and "will need a flat top needle and seat", so I wanted to make sure I get the correct product. I would also like to replace the bolts with Allen...
Top