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Thread: James Adams - My CB400N restoration

  1. #411
    Super Moderator longdistancerider's Avatar
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    Here's a video of a guy using a ratchet strap to set the bead of a tubeless tire.
    Tubes are sized by the tire sizing, just a case of running a search for tire size + tube and you'll get numerous results. Buy a name brand, not the cheapest. I actually had a cheap brand tube blow out while parked on the lift table, bike tipped over and bent the front spokes. That's how the CL350 restoration began, wasn't planned but straightening 47 year old spokes is out of the question so those had to be replaced and while I'm at it the rims aren't great so new rims. Then the hubs are grossly corroded so that needs fixing up and while I'm at it the fork tubes are corroded so let's replace those and the list grew till it became a nuts and bolts resto
    knauff13 likes this.
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
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  2. #412
    Supporting Member fxray's Avatar
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    FWIW, I generally run IRC tubes on my bikes, and have had good luck with them so far. I rarely need to add makeup air. On the other hand, I run Heidenau tubes and tires on my CL350. These tubes are made from natural rubber and have an inherant, very slight porosity. I air these up more frequently. They are heavy duty tubes, noticeably thicker than the IRC.

    Jim, that is a tragic story!
    It's hard to have too many motorcycles, but easy to have too many batteries and tires.

    1971 CL350K3
    1970 CB450K3
    Plus a few non-Hondas

  3. #413
    Super Moderator longdistancerider's Avatar
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    Quote Originally Posted by fxray View Post
    Jim, that is a tragic story!
    I'm Irish, if it weren't for bad luck I'd have no luck. LOL
    The end result of my disaster will be a trouble free vintage bike. I might even get it done by the 2 year anniversary, 12-1-19. Powder coat done, chrome done, plating shop called a few minutes ago = done, waiting on Cerakote to be done. Then assembly. Oh, paint not done since I haven't figured out what color and design I'll use. Really like the CL350K1 & K5, 1972 is ugly IMO
    fxray likes this.
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

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  5. #414
    Super Moderator ancientdad's Avatar
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    Quote Originally Posted by fxray View Post
    . . . and if you read the thread in the link I posted, I did indeed measure ring gap and listed both the spec and the gaps as measured. I also removed the rings from the pistons and cleaned them. I measured the thickness of the rings, as well as the clearances in the grooves. When I was happy that all was good and all was clean, I put it back together with the old rings. Once back together, the engine has stayed together and in the bike and is currently a good runner after nearly 9,000 more miles. Not everyone can say that about the old Hondas we read about on here.

    I am not saying that this is the way to go in all cases, just that it can be done. You may note that I put new rings in my other bikes.
    Ray, I did not read the link you posted - my apologies - as I was simply responding to James with my expounded thoughts on his situation, just adding to the opinions for him to use as decision-making information, much the same as you were. As long as they were in spec, then the only other thing that would have an effect on the long-term use of the old rings could potentially be lost cylinder wall tension from previous exposure to excessive heat. We all learned a bit differently during our formative times in the mechanical arena, I've just always been of the belief that since you're already there you should take the opportunity to replace what would require another teardown to do later.
    Tom

    CL450 project reboot, street legal this time
    Budget drag bike project
    CB350K1 full patina project
    Ride along at the drag strip


    running points... because I'm too old for mysteries that begin with pushing

  6. #415
    Senior Member james adams's Avatar
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    Mmmm, food for thought here guys, thanks for that. It seems to me that I could fit two tubeless tyres with a ratchet strap and buy a compressor and airline plus 5 attachments for £140 (I checked, a wolf 50L) to inflate them or I could buy two Michelin tubes (£30) and use a foot pump, which I have. A compressor has many uses, cleaning my carbs out, which I need to do. Spraying paint, also required. Spraying de-greaser, also required. A foot pump inflates tyres.

    Guess which way I'm leaning guys . . . . . . . . .

    James Adams - My CB400N restoration-compressor.jpg

  7. #416
    Super Moderator longdistancerider's Avatar
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    After honing the cylinders be sure to wash/scrub them out with hot water and detergent, Dawn works best, to remove all the debris and oil. You want them spotless clean enough to eat off of. Then wipe the cylinders down with a thin coat of oil and cover the ends with Saran wrap to keep them clean until ready for use.
    Jim O'Brien
    1979 CM400T "road bike" modified for travelling
    1978 CB400T1 restored
    1972 CL350 nuts and bolts restore in progress


    https://www.hondatwins.net/forums/22...d-attempt.html and https://www.hondatwins.net/forums/1-...r-attempt.html
    Road Trip https://www.hondatwins.net/forums/11...here-i-go.html or "where's Jim now?"
    Member Map https://www.hondatwins.net/forums/dcMembermap.php

  8. #417
    Senior Member Richard_Pitman's Avatar
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    How do you clean your carbs out using a compressor ?

    Also, once your tubeless tyres are on the rims, couldn't you just take the wheels to a local tyre fitter / bike shop, get them to pop the beads into place ?

    That said, I agree about accumulating tools.
    Last edited by Richard_Pitman; 10-24-2019 at 06:33 AM.
    1970 Honda CB175K4
    1972 Honda CL175K7
    1999 Honda CB600 Hornet
    1970 - 1972 Random heap of CB/CL/SL 175 parts, slowly being reassembled ..

  9. #418
    Senior Member knauff13's Avatar
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    Quote Originally Posted by Richard_Pitman View Post
    Also, once your tubeless tyres are on the rims, couldn't you just take the wheels to a local tyre fitter / bike shop, get them to pop the beads into place ?
    Not sure what other options might be near you, but I think the Cycle Gear shops in the US charge $50 to mount tires if you don't order them through the store, and I think you're paying that whether you need the full service including taking the old tire off or simply seating the new tire in the bead. If I'm wrong I'd love to hear about it, because replacing the front tire is on my to-do list this winter.
    Ben Knauff
    1978 CB400A Hawk Hondamatic

  10. #419
    Senior Member Richard_Pitman's Avatar
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    $50 for 30 seconds with a high pressure airline sounds a bit expensive ...
    1970 Honda CB175K4
    1972 Honda CL175K7
    1999 Honda CB600 Hornet
    1970 - 1972 Random heap of CB/CL/SL 175 parts, slowly being reassembled ..

  11. #420
    Senior Member knauff13's Avatar
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    Quote Originally Posted by Richard_Pitman View Post
    $50 for 30 seconds with a high pressure airline sounds a bit expensive ...
    Agreed! But they require/provide certain other things like replacing the valves for safety (read: liability) reasons. Which is NOT to say it's a good deal. Just how they probably explain the cost. I think it's $30 if you purchase the tire through the store.

    I do have an air compressor so I'm going to give Jim's ratchet strap suggestion a shot when I get around to it.
    Last edited by knauff13; 10-24-2019 at 02:35 PM.
    Ben Knauff
    1978 CB400A Hawk Hondamatic

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