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Hi all - CB450 project bike inside

This is a discussion on Hi all - CB450 project bike inside within the General forums, part of the Caferacer.net Forums category; a total rebuild would be a pain. if she turns check the compression, do a leak down test, change the fluids, clean the filter, pry ...

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  1. #11
    Moderator ROSKO's Avatar
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    a total rebuild would be a pain. if she turns check the compression, do a leak down test, change the fluids, clean the filter, pry the clutch plates apart.... plenty to do. In my experiance these Honda engines will run after sitting quite a while as long as you make sure everything is solid. new battery, new plugs, check ALL bullet connectors, check that all switches work... you should be able to get it to fire if all this stuff is done. get a factory manual NOT a clymer/ hayes. Engine is too complicated for their vague info.

    450 and 500 engines are FUNCTIONALLY the same, diffrent cylinders and transmission gearing.

    http://www.osg.se/sweb/cb450/index.asp
    http://www.cb450dohc.com/
    http://groups.msn.com/HondaCB450DOHC...fiedforum.msnw
    http://www.design-classic-cars.de/honda/450k-01.html
    http://www.i3juy.freeservers.com/Eng...0Contents.html
    http://arml450.tripod.com/index.html
    http://members.aol.com/classjap/Page7.html
    http://www.vf750fd.com/Joep_Kortekaas/joep.html
    http://home.comcast.net/%7Erdarke/450hist.htm
    http://www2s.biglobe.ne.jp/~george98/CB450.htm
    http://www.angelfire.com/geek/ofalltrades/links1.html
    http://www.lump-proof.com/CLASSIC/RACER/al/
    ...and thats just to get you started. get to reading! We are not even getting to the parts available. that'll be up next.


    BORN TO LURK, FORCED TO WORK.
    www.NYCvinMoto.com
    www.VinMoto.org

  2. #12
    Administrator borzwazie's Avatar
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    excellent, only 1 manual to read! thanks for the many links.

    To buy:

    MM Oil
    Engine oil
    Battery
    Spark Plugs
    WD-40
    bandages
    beer



    Edited by - borzwazie on Dec 18 2006 2:50:37 PM

  3. #13
    Senior Member krapfever's Avatar
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    quote:
    excellent, only 1 manual to read! thanks for the many links.

    To buy:

    MM Oil
    Engine oil
    Battery
    Spark Plugs
    WD-40
    bandages
    beer

    and carb cleaner, a LOT of carb cleaner.

    I've used brake cleaner to de-crust electrical fittings too (works great on hornet's nests too).



    Honda go sideways!

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  5. #14
    Administrator borzwazie's Avatar
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    You know, something I didn't even think about at first - do I need lead additive for this bike? Or did Hondas of this era already have hardened valve seats? I ask because my dad has a '74 BMW R65 that didn't, and he had to have those seats added.


  6. #15
    Senior Member krapfever's Avatar
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    Don't worry about it. The Big Red's got you covered.

    Honda go sideways!

  7. #16
    Senior Member fuzzybutt's Avatar
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    y'know, i may have to do something with the cb450 i have sitting out in the shed. guy gave me one about 6 months ago. motor turns, has good compression and it's almost all there.

    some people are like slinkies, basically useless but they still make me smile when i push them down the stairs

  8. #17
    Member Quicklimegirl's Avatar
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    quote:

    To buy:
    MM Oil
    Engine oil
    Battery
    Spark Plugs
    WD-40
    bandages
    beer
    LOL that cracked me about on the bandages! There isn't one vintage bike in my garage that I haven't shed blood multiple times for..new project = stock up!

    BTW on the pic of that sweet maroon Cafe Racer, can anyone ID the type of fender, is it available or a rare NOS on evilBay? I've been using a Arlen Ness HD "Cafe" fender made for 19" wheels on my stock RD, but would love to find another Vesco fender or something similar. Stupid corporate chain MC dealers...trust 'em to put on a tire & they cracked the fender and naturally won't own up to it.
















    Edited by - Quicklimegirl on Dec 19 2006 12:04:49 AM

  9. #18
    jaimesix's Avatar
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    quote:
    excellent, only 1 manual to read! thanks for the many links.

    To buy:

    MM Oil
    Engine oil
    Battery
    Spark Plugs
    WD-40
    bandages
    beer



    Edited by - borzwazie on Dec 18 2006 2:50:37 PM
    Do not forget the gloves...I learnt to use gloves long time ago....it was not cool to see my hands filled with black stuff for weeks, specially at work. Some people do not understand how cool and rewarding it is to work on your own vehicles , plus I got tired of explaining my dirty hands 10 times/day to work aquaintances. bosses, girls.....

    No need, gloves are great. And do not allow the "macho" crap to get you. Occasionally I find the "macho" guy that tells me, "gloves.....why?? I am tough"

    yea right, I am macho and more, like a lion, the lion is not stupid, he will not attack an elephant, he knows how to survive and have plenty of lionesses and cubs because he does not commit suicide nor drink rotten poluted waters...in the same way...avoid not only stubborn grease ...but asure no chemicals get absorbed through your skin, and do not give an excuse to that girl you like to look at you and say....yuck....


    Cafe racer DOHC CB750F

    http://cardomain.com/id/jaimesix

  10. #19
    Administrator borzwazie's Avatar
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    MM Oil - check.
    1 Gallon carb cleaner (I always knew I was glad I had an ultrasonic cleaner!) - check.
    Honda Manual - check. (had to order from local honda shop)
    extra toothbrushes - check. I hate to use my own, they clean so good but taste so funny afterward.

    In addition to the liberal hosing down with Liquid Wrench, today I popped the plugs off and squirted some MM oil down there, gonna let it set a while.

    Obviously I won't get much done on it this particular weekend, but my plan for the following week is to drop the carbs and pick them apart. By then my manual will have come in and I'll have a better idea of what the heck I'm doing.

    Just to stay motivated, I figure I'll toss up pics of the bike as I go along and you guys can nag me if I get lazy.



  11. #20
    Administrator borzwazie's Avatar
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    So, I'm real disappointed - you guys didn't nag me like I asked and here I am working on it today only for the second time!

    Christmas kept me busy, as did the news that I'm going to have a baby girl. Apparently, the only paint jobs my wife can see in the future are painting my son's room pink and moving him to a new room.

    Off comes the seat:


    And what a seat it is!:


    Minus the tank (and camera stupidly in macro mode):


    I'm afraid to look inside:


    Probably looks like these side covers inside:


    One sooty and one sooty and oily plug:


    Lots of work to do! Judging from the right cylinder plug, I have a re-ring job in the future. It's hella hard to kick over, though, so maybe compression is ok. The MM oil did it's thing, and the motor moves pretty smoothly with the plugs out.

    No battery, which is good! No acid damage. Wiring looks surprisingly good.

    Got the official Honda manual. It was print-on-demand, which means "take 4 weeks to ship it to me."

    Out of time for today, but clearly I gotta get moving if I want to beat an end-of-May/start-of-June deadline (newborns take more time than teardowns, that's for sure).




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