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Help Honda Spada

Discussion in 'Honda 250cc Twins' started by Gizziracer, Jul 24, 2022.

  1. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Newly acquired Honda VT250 SPADA.. Being a bit lazy just picking members brains before I hook onto front cylinder.( necessitating radiator removal)
    Have cleaned out carbs/set float heights.
    Removed rear cam chain tensioner and cleaned out,(which solved the horrendous cam chain rattle emanating from the rear cylinder).
    Replaced both spark plugs.
    Cleaned out crud from fuel tank, installed fuel filter and filled with fresh fuel.
    Presently bike starts on the button with full choke, then within a second or two the front cylinder dies and the bike idles beautifully only on the rear cylinder until the throttle is blipped then the front jumps into life. As soon as the bike is ridden a kilometre or more and warms up the motor runs and idles perfectly.
    I’m guessing front valves out of adjustment. Does any one have any other ideas ?
     
  2. maelstrom

    maelstrom LiteTek Staff Member Premium Member 250cc Vendor Contributing Member

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    I would start by cleaning the front idle circuit and adjusting the mixture when warm. Check the synch too.
     
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  3. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Yep, already did that twice previously. That’s the most logical solution. Funny, after putting up this post just went and started it and the problem is gone..
    for the moment…. I know Spadas were magical but ,,,,,,,,
     
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  4. Murdo

    Murdo The Good Doctor Staff Member Contributing Member Ride and Events Crew

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    Definatly check those valve clearances.
     
  5. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Yep, it’s job number one on the list. The fact it comes good once a little bit of heat gets into it does suggest it’s valve related to me
     
  6. Bananaplant

    Bananaplant Member Premium Member

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    I would check the ignition system for possible cracks in the insulation (rubber boot, wires...)
     
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  7. jmw76

    jmw76 Well-Known Member

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    Yep. As per @Bananaplant, check out all of the simpler things first.
     
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  8. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Yes, I checked the spark situation by hooking up an inductive timing light. Spark seemed to be perfect.
    Checked valves and they were all a little out of spec.. sadly once back together the front cylinder still refused to fire when the motor was cold…
    Decided to re check the carb synchronisation with vacuum gauges and the balance was noticeably out.. got the balance pretty much spot on, let the motor cool down, started the motor and the problem was resolved.
     
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  9. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Almost finished
    07FCE82E-8C53-4B44-B990-427447EEF82B.jpeg
     
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  10. Frankster

    Frankster NFI Staff Member Premium Member Ride and Events Crew

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    Needs a brown seat and pod filters.
     
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  11. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    Scouring AliExpress as we speak Frankster, maybe one in Latte Tan or Burnt Umber would be nice :)
     
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  12. ruckusman

    ruckusman White Mans Magic Master Premium Member Dirty Wheel Club

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    I Cappuccino froth a colour option?
     
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  13. Jo Verhelst

    Jo Verhelst Forty2 Premium Member Contributing Member

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    don't forget to ditch the mudgards and replace the tyres with knobby's
     
  14. Gizziracer

    Gizziracer Well-Known Member Contributing Member

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    It’s very interesting the response a bit of polish and paint can generate : ) The bike is bog stock except for the staintune stainless steel muffler, came to me with the painted frame n wheels and massive cam chain rattle that responded amazingly well to the tensioners being removed and cleaned out. Luckily I was able to make contact with the mechanical engineer that did the original engineers report on importation and obtain a new engineers certificate.
    It’s always a lottery purchasing old non runners. E147AED8-F609-49AF-B2F7-BA7A5267CB64.jpeg F274ACC7-B50B-45E6-BE79-78DE6A3CFAB0.jpeg
     
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