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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; Congratulations on your new baby. In the interests of science you could paint your boy's room pink and leave him in there. See if all ...

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  1. #21
    Senior Member krapfever's Avatar
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    Congratulations on your new baby. In the interests of science you could paint your boy's room pink and leave him in there. See if all this "gender role imprinting" mumbo jumbo has any truth to it....just a thought. Its fun to mess with kids' heads.

    The bike shouldn't be that hard to crank over. Checked the valves?

    Honda go sideways!

  2. #22
    Senior Member Judeyramone's Avatar
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    quote:Its fun to mess with kids' heads.
    Not so much. They pay you back when you're old.


  3. #23
    Senior Member 350Four's Avatar
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    I wouldn't jump to the "ring job" conclusion based on the way those plugs look. The one on the right looks like a new plug. Additionally, plug fouling could be a simple mixture issue. If compression is similar (and acceptable) in both cylinders I'd leave the rings alone. Just be sure to change the oil after soaking in Miracle oil or other solvents. You may want to change the oil, kick it over or start it for few minutes and change it again. Those solvent don't lubricate very well. And, more importantly, why is beer at the bottom of your list?


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  5. #24
    Administrator borzwazie's Avatar
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    quote:
    The bike shouldn't be that hard to crank over. Checked the valves?
    I suspect the quantities of MM oil, but how best to check the valves?


  6. #25
    Senior Member 350Four's Avatar
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    Compression gauge. Check each cylinder against the recommended pressure and against each other. They should be fairly close to each other (better than 10% I would think). When you get your manual it'll have more precise suggestions. If pressure is not within spec, either the rings, valves, or headgasket might be at fault. If you put your hand over the exhaust port and intake port and feel pressure during the compression cycle you may have suspect valves.


  7. #26
    Administrator borzwazie's Avatar
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    Also to buy: fuel tubing.

    When I was taking the tank off, the little fuel tube that goes between the two sides of the tank was pi**ing fuel all over my garage floor through a dozen tiny holes every time I tilted the tank. I simply cut the other lines. I can't believe it was holding fuel at all.

    I'm debating leaving the side covers off. I was thinking about pulling off the current airbox and putting those little individual filters on, but I'm concerned about getting caught in the rain with those things on. Anyone have any thoughts on that?

    The center stand is definitely going to go, as are the stock signals and fenders. Fiberglass!

    Will these run without a battery?


  8. #27
    Senior Member 350Four's Avatar
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    I've removed my side covers and moved the electronics and battery to under the seat and cowling on my 350F. I kept the rubber air box (I don't know if your's has the same) and installed one big filter..so far no water problems although I don't ride in the rain often. I read that individual velocity stacks on each carb will require rejetting. Mine will run without a battery but will not start (you have to jump it). That's why I kept the battery. There are total loss systems that will hold enough charge to start it short term but I think they have to be charged periodically. Centerstand is more useful than the sidestand. I'd lose the sidestand but keep the centerstand.


  9. #28
    Senior Member krapfever's Avatar
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    quote:

    Will these run without a battery?

    You're probably better off getting it running as is (with a fresh battery).

    Where are you in the process of firing it up right now? Post a step-by-step of what you are doing and maybe one of us can help.

    Begin with:

    1. Oil topped off.

    2. Clean plugs.

    3. Fresh (or freshly charged) battery.

    First:

    1. Pull one plug and re-insert it into the plug wire boot.

    2. Turn the ignition on.

    3. Hold the plug from #1 next to the engine case and kick it over a couple of times, look for a spark.

    3. Check for spark on both sides.

    4. If you've got good (read: blue) spark on both sides, great. Worry about timing a little bit later.

    Got spark?





    Honda go sideways!

    Edited by - krapfever on Jan 17 2007 3:19:54 PM

  10. #29
    LiLBull's Avatar
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    450 twins are just cool ,even stock I like them alot and they are getting harder to find .I like the bigger tank I put on mine its from a cx500 you just have to use the standard 450 or 360 fuel shut off valve and you have to WELD a longer "C" tab on both sides of the front mount,the rear mount needs just a new hole drilled and a rubber grommet from what ever source you want to use. www.backallycustoms.com you can see pictures of my bike.the one with dual strips is the fourfifty the single strip is a 360 same tank.I made both seat from the old gas tanks of each bike.

    Im so far behind ,that I think Im in first.

    Edited by - LiLBull on Jan 19 2007 06:38:21 AM

  11. #30
    LiLBull's Avatar
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    Do open air box and besure you have no mouse lairs or nuts stored in your air box or a disinigrated air filter to get sucked into the intake.Get to the points and besure they are clean and that they open at least the width of a matchbook cover.See this is ussually the case looking at your plugs (which is not realy not a true way to tell the true condition as they could not be from the bike last time it was started ..who knows put in a fresh set then you have a far more accurate story to read plugs by,but ussually the points close up slowly and the owner reachs to adjust carbs and then you have fouled plugs and the performance is way off its spec..so I would set points clean and reset carbs to normal and it should start.)keep the battery and unless your a fabricator of even back yard variety the stock box is fine and even looks cool on those twins .I took mine off and sold them on ebay as i like the look of bareness to the bike.I also relocated the battery box lower on the frame by removing the tool box and welding on some fabricated brackets I also cut and rewelded the brackets for the electric parts that are attached to the box for a cleaner look.I also cut the box down some for more cleaner look.also you can run gas out of any tempory vessel to get it started so dont worry about a fuel tank just yet for the purpose of just hearing her run just be safe about it. I also agree with leting go the kick stand and keeping the center stands .It is a big lump of metal I felt good removing from the frame.It looks cooler on the centerstand in my opinion .And I hope you have a IMPACT screw Driver .It a vintage bikers first tool of deployment.

    Im so far behind ,that I think Im in first.

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