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Project A festering thought of building an 8 cylinder 500

Discussion in 'Other Projects - Other Bikes (non 250's)' started by Gen, May 6, 2021.

  1. jmw76

    jmw76 Well-Known Member Premium Member

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    Great work. Keep at it. We are itching to hear it run.
     
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  2. Gen

    Gen Well-Known Member

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    You aren't the Lone Ranger there Mate,,,,,,
    I was itching to start mounting the carbies, and associated linkages, but revisiting forward backwards land always seems to happen :idk:
     
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  3. Gen

    Gen Well-Known Member

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    As we move into a new month, I'm pleased to see the end of July, which, for me, was a groundhog month, due to discovering the main bearing shells I used in one engine half were too snug, due to carelessness from a previous "repairer" who somehow managed to drop something pointy onto #4 crankcase main bearing area, under the bearing shell, resulting in a "dent" so minute, it could not be felt.
    I hit the area with some cardboard backed 1500 wet'n'dry, sat the crank in place & pulled the wet'n'dry thru until the invisible ridges around the ding were gone, this enabled everything to turn freely, but I thru a thinner set of bearing shells in, just to be safe.
    This project is my hobby, my job & my addiction , but there's no rush, so long as I do something to it every day I'm happy, when this is something I've not done to it previously, is icing on the cake.
    Why is it the wind picks up the day after an engine is stripped ?
    I need to figure out a starter, as there is not enough room 'tween the cylinder banks to fit the OEM starter, so I'm planning on making an adapter using a dead starter armature, it's bearings, two CB250 crankshaft cam chain sprockets, some 25H chain, & a CB250 starter, which is twice the OEM 250/4 starter & hopefully, has more torque.
    Windy , dusty days give me think tank days, and I think I'd better make a start on some exhaust pipes soon, 'cos startup is getting closer, day by day :)
    pipes.jpg
     
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  4. Gen

    Gen Well-Known Member

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    Cosy carby trial & starter motor drive thought day today, It feels good to progress into new territory for a change ;)
     

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  5. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    Damn that looks sexy, 8 velocity stacks - something which you'd usually see in an F1 car
     
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  6. jmw76

    jmw76 Well-Known Member Premium Member

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    Was there a reason why you didn't think about running straight intake runners and crossing them over. So each carb bank installed above the opposite cylinder head?
     
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  7. Gen

    Gen Well-Known Member

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    Room. or the lack of it, to cross the runners, they would need to be "squashed"
     
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  8. gregt

    gregt Well-Known Member Premium Member

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    What are the carbs ? If they're the Yosh things I understood they wouldn't go past 45 degrees.
     
  9. Gen

    Gen Well-Known Member

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    Chinese copies :oops:
     
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  10. Gen

    Gen Well-Known Member

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    Iv'e been hacked, said the Guzzi V50 frame to it's new resident in waiting (I need to redo the intake manifolds using custom 85 degree mandrel bends, which also require a wee wait while they get made in SA)
     

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  11. Gen

    Gen Well-Known Member

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    Groundhog day returned, and passed, again,,,
    [​IMG]

    [​IMG]

    [​IMG]
     
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  12. Fastfishes

    Fastfishes Member

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    This is epic
     
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  13. Gen

    Gen Well-Known Member

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    Starter motor relocating week this week, while I wait for bits for the carb linkage construction,,I spend more time waiting, than building , although I get at least 3 hrs per day in the creation station :D
     
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  14. Gen

    Gen Well-Known Member

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    [​IMG]

    [​IMG]

    [​IMG]

    [​IMG]
     
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  15. Gen

    Gen Well-Known Member

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