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Discussion in 'Hangout Lounge' started by thunderbird187, Aug 8, 2008.

  1. thunderbird187

    thunderbird187 New Member

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    Hello everyone I recently purchased a 1982 Yamaha Seca 750R. It's in mint condition and is complete with all stock accessories. I will be replacing the clutch at the end of the season as i do notice a bit of slip when shifting hard into second gear. I'd love any suggestions as to what clutch i should use and info on how hard it would be to do the repair myself. The only thing that's different from stock is the exhaust which is a 4 to 1 Jerdine (it sounds like a crotch rocket). When i received the bike it was critical Lean and have adjusted the carbs almost 1/3 of a turn and the plugs are still white but starting to show a bit of a tan color. How tan should the plugs be?




    [​IMG]
     
  2. RickCoMatic

    RickCoMatic Well-Known Member

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    At the very least ... a light to medium tan.
    Be careful how far you bring-out the Pilot Mixture Screws.

    If you bring them out too frar and the Spring doesn't provide enough resistance against it ... you run the risk of it falling right out of there.

    With the exhaust you are running; you might need to have a Richer Pilot FUEL Jet in there to achieve getting enough supplemental Mixture to give you some color on the Plugs.
     
  3. wizard

    wizard Active Member

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    I wouldn't be too quick to pull that clutch, how many miles on the bike, what oil r u running?
     
  4. RickCoMatic

    RickCoMatic Well-Known Member

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    The bike doesn't look beat-on. Your Clutch Cable might be too tight.
    Try the Slack Adjustment up on the Clutch Lever Perch and see if a little slack will remedy the slip.

    If it does you can live without having to do the Clutch.
    If it don't you can Overhaul the Clutches.

    You can replace just the Friction Plates sometimes. It depends on the condition of the Driven Plates.
    If the Drivers are in good condition there's no need to replace them.

    The actual replacement takes a long afternoon.
    Get a Manual for your Bike and read-over the Clutch Section.
    Having a good idea of what the mechanism looks like is ann important step in being able to to the job without making a mistake.
     
  5. kontiki

    kontiki Member

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    Fantastic looking bike. Welcome aboard. Before you go tearing your clutch apart, take Rick's advice and see if you can make some adjustments.
     
  6. sherman204

    sherman204 New Member

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    Rick if my seca had that kind of paint I would not have needed to do the 70's yellow pain scheme. That thing looks great.
     

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