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1982 Seca XJ650RJ

Discussion in 'XJ Technical Chat' started by tj., Jul 7, 2020.

  1. tj.

    tj. Active Member

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  2. k-moe

    k-moe Pie, Bacon, Bourbon. Moderator Premium Member

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    Yes please. We need to keep the carb discussion out of this member's thread.
     
    hogfiddles and tj. like this.
  3. tj.

    tj. Active Member

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    Inspected the clutch recently. Bike has been sitting for many years and I was expecting to replace friction plates, bolts and springs, but unfortunately I will be replacing the steel plates as well. What I found,
    All the friction plates measured 3.0mm. Lots of bits of friction material everywhere.
    The steel plates measured 1.55mm and 2.25mm, not burnt and difficult to tell if they are warped. There was so much friction material embedded in the steels that it actually pitted the steel plates. Perhaps the thicker plate can be saved and only the thinner plates will be replaced.
    The boss and basket showed signs of wear but the grooves were not too deep...smoothed them out a bit. The basket play seemed excessive (in and out). The boss nut had the washer tab bent over it but it didn't have the correct torque on it. Put the socket on the nut and the ratchet handle just dropped...no force on it. Definitely not 52 ft/lbs...perhaps in/lbs.

    Some pics.
     

    Attached Files:

  4. tj.

    tj. Active Member

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    Some painted engine pics...decided to leave the head and oil pan silver (better to see leaks, I think).

    Valspar Plastikote engine enamel was used and it covered very well...will see how it holds up.
     

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  5. tj.

    tj. Active Member

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    The frame, specifically the steering stop needed some work. It was a little bit bent up but the neck and race were unharmed. It seems like the stop took the brunt of the damage. I straightened the stop and then added some material to it. Did some measuring afterwards with the gas tank, triple trees and handlebars on...it worked out ok.

    I wasn't all that happy with the welding I did (if you could call it that:rolleyes:)...until I looked at some of the Yamaha welding. There was plenty of crater pipe and porosity...looks like they were not overly concerned with these pesky details in the 80's :eek:.

    No mag particle or UT was done on the frame, I only visually inspected the welding. In general there is some surface rust but no holes. I paid special attention to the common issues that have been brought up in different threads. Specifically the sidestand weld and neutral switch area. Are there any other common areas of concern that I missed?

    Could not find any drain holes at the swingarm pivot or anywhere else along the bottom...maybe I misread this bit. Should there be drain holes somewhere?

    Frame pics.
     

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  6. hogfiddles

    hogfiddles XJ-Wizard, Host-Central NY Carb Clinic Moderator Premium Member

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    I’ll check mine and if I see them, I’ll take pics of the locations
     
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