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  1. C

    1981 Shop manual CB750

    I have transferred it over thanks.
  2. C

    1981 Shop manual CB750

    Thanks very much I appreciate the manual.
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    1981 Honda 900F Super Sport

    Got it solved, thanks
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    1981 Honda 900F Super Sport

    I am having trouble trying to figure out how to put the clutch basket back on the shaft. The primary gear has another thin gear in front of it that is covering the primary gears teeth so the basket will not go past the thin geared washer. It looks like the thin gear is held on with a 10mm...
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    CB750C Carb 2 leaking fuel, entire bike runs only on choke

    I use the bronze or brass metal filters, clear housing so you can see when and if they get dirty. To run the bike without a filter is really just asking for trouble, the jets inside are really fine and when they plug up the only way to clean them is with an ultrasonic cleaner. The dirt just...
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    1980 CB750 Runaway Idle

    Sounds like you have some good advice to follow, I too would recommend that you get rid of the pods, they will give you nothing but grief, especially if you are new to the mechanical world as you say. You could rig up a temporary air intake with some rubber and a cardboard box with a proper air...
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    New Main Bearings

    I have found that the only problem is availability of the colour that you want. I ended up at $17 bucks each for 10 so $170 for a set for my 900F. But at least I did find a set in England. Nothing in North America. Netherlands has usually got some decent stock I have found over the years.
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    CB750C Carb 2 leaking fuel, entire bike runs only on choke

    I would agree with all the above advice, a couple of points maybe worth mentioning, have you got an in line fuel filter in case there is dirt/rust in the tank. And when you are cleaning out the carb jets be extra careful if you try to clean out the jets with a wire it is very easy to damage...
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    Physical Exam just became an autopsy!

    With a dead short I would really lean towards an electric problem.
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    Physical Exam just became an autopsy!

    A clean piston is an indication that the cylinder has not been firing. Could be all kinds of things, like carb not working, coil not working, bad high tension lines, even a short in the high tension line. First thing I would look at is the spark and make sure it has one. after that I would be...
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    Cylinder head - broken flange bolts

    I would agree that when you initially had a problem with the bolts coming free you should have stopped before breaking the bolt. One thing that has worked wonders for me is a infared heater coil, you can buy them Canadian Tire, Harbour Freight. It is a coil that you put on the bolt head and it...
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    Main Bearing Look

    The case letter is located on the back top right of the upper engine case. Where the engine holding bolt goes through. With that letter and the crankshaft marking you can determine the correct replacement bearings for the engine. With that said, as others have mentioned, I would mic out the...
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    Spoke rims to Comstar swap

    I bought a rear rim from a used supplier in Toronto Canada for $75 and then I powder coated it black and chrome.
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    Lwr Case - Is this a crack?

    I would probably agree that it is casing marks. If you want to be absolutely sure then you can use a penetrating dye (like iodine) and see if it bleeds through the casing. Similar to a magna flux to test welds, but much cheaper. You can use most any small molecular liquid (like white gas...
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    Physical Exam just became an autopsy!

    You will not know for sure until you crack open the engine. I would take the head off first and have a look at what you have. If the cam was in fact out by 180 degrees then you could easily have a broken piston/bent valve, Having the aluminum in the oil filter is not necessarily the end of...
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    1981 Shop manual CB750

    Anyone have a shop manual or a link to get one by chance? Thanks
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    I broke this part on accident. What is it called and can I get a replacement?

    Use the JB weld, it's probably the only thing that is going to save you. Trying to solder/weld that pot metal aluminum would be a nightmare and only compound your troubles. Just fill it in solid with JB Weld (just that area) and then drill a new hole, should work great for you. I keep a...
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    What is this thing called I need to find a new bolt for it.

    It is the cable lock bolt for the tach drive. I think it is a 6mm x 1.0 pitch x 1" long
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    Resurrecting a 1981 CB750 Custom

    Looks like it is in good shape, should not be a really big deal. I would take off all the plastic and then look for mouse chewings on the wiring. Take the plugs out and put some Marvel Mystery Oil in each cylinder and leave it for a week. Then pull the side cover and SLOWLY rotate the engine...
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    Looking for some skill...

    What are you trying to do?? Minor restoration or a complete strip down of everything and then building again from nothing? Chirs
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    Workmanship. Am i being picky? (BCR Designs/Benjies cafe racers warning)

    If that was my work I would throw it in the garbage and fire the welder. There is no excuse for putting out such work. Looks like it was done by a first year apprentice. You are not being picky at all, I would send it back and have them do it again, this time with a little quality. My...
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    Powder Coating Comstar Wheels

    Thanks for your input. Any idea where I would be able to find the composition of the wheels? Thanks
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    Powder Coating Comstar Wheels

    I have a 1981 Honda 900F with comstar wheels and would like to powdercoat them. I have heard conflicting stories on how the heat (400 degrees F) will cause a molecular change in the Aluminum and could cause the wheel to break under higher speeds. Whatever higher speeds means.... Anyone out...
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    Workmanship. Am i being picky? (BCR Designs/Benjies cafe racers warning)

    There should be no excuse for poor welding of any kind. It looks like the company had outsourced the construction and then brought it in house to ship to you. I have had this happen to me on some occasions, although not with welding since I have done my own for quite a few years. That looks...
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    1980 CB 750C

    It turns out that the colour is actually Candy Muse Red, I did find another bike that looks the same colour. Thanks
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    Master Cylinder

    I would like to be able to find a grab bar that goes around the seat. Have not located one yet.
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