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1984 Katana 7/11

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    Cheers Larry! I'm sure I'm making it a lot more work than it needs to be (I'm good at that) but as long as I get the result I'm looking for it'll be worth it.

    There may be another one or two fellas on the KA forum who want one, which is why I spent the time making sure I can re-use the mould.
    1982 GS450E - The Wee Beastie
    1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

    sigpic

    450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

    Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

    Comment


      Well, looks like it's good to keep going with the seat!





      What you can't really see from the photos is that the front is trimmed a bit high, so it's actually lifting the rear of the tank a little and as a result it's also pushing the seat back a little as well.

      The tongue is bolted on and it's sitting nicely on the seat plate though.

      So, I'm now happy to reattach the seat latch area, do that patch on the right side, add whatever reinforcing is needed, and finish the trimming.

      Just a pity I don't have more time where I can make some noise, trimming by hand at night with the hacksaw is a PITA.
      1982 GS450E - The Wee Beastie
      1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

      sigpic

      450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

      Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

      Comment


        Reattached the seat latch area last night, just enough to hold it in place so I can double check the location is right before making it nice and secure and reinforcing it.



        And I repaired the tear (left side of the photo) and added some reinforcing in the same area on the other side just to be sure, although it didn't tear and doesn't look like tearing.

        Just realised I didn't get a pic of the prep work, but the tear had gone in a Y shape so I drilled a small hole at each end of the tear, then a few more along the lengths of it. I sanded it all back with 60 grit which showed up a weak line where the different bits of matting joined, so I trimmed that out with a hacksaw.

        I then filled that weak line up with two layers of matting, then two layers on the back side and another layer on the front side, so it should be nice and strong now.





        Once they've hardened up I can test fit the seat with the seat latch and make sure the location is right, then I can properly reinforce the seat latch area and get the seat trimmed down to the right size.

        I'm waiting to trim the front until I get the tank mounting rubbers from Mick Hone. Ordered them on Tuesday with Express Post but they still hadn't arrived yesterday so I'll have to chase that up today. We've had a few parcels delayed lately... good ol' Aussie Post...
        1982 GS450E - The Wee Beastie
        1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

        sigpic

        450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

        Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

        Comment


          Things have been looking pretty good with the seat.

          Got some holes drilled to take the stock rubber cushions for the frame:



          Trimming down the front is getting close and it was locating with the seat latch pretty nicely:



          Shaping up with the tail piece was looking good:



          But put it all together and it's 5 to 10mm's too long... ugh:



          Going to have to trim the very rear off and then work out where to go from there... so damn close! This is kickin' my butt hard...
          1982 GS450E - The Wee Beastie
          1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

          sigpic

          450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

          Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

          Comment


            cut and splice.

            Cut out a 10mm piece in the centre and just rejoin it! Thats the luxury and simplness of fiberglass!
            1978 Gs1085 compliments of Popy Yosh, Bandit 1200 wheels and front end, VM33 Smoothbores, Yosh exhaust, braced frame, ported polished head :cool:
            1983 Gs1100ESD, rebuild finished! Body paintwork happening winter 2017:D

            I would rather trust my bike to a technician that reads the service manual than some backyardigan that THINKS HE KNOWS how to fix things.

            Comment


              Originally posted by Fjbj40 View Post
              cut and splice.

              Cut out a 10mm piece in the centre and just rejoin it! Thats the luxury and simplness of fiberglass!
              I agree. Take what you need out of the middle, 'glass it back together and leave the trailing end the way it is. Way simpler, Pete. The trials and tribulations of customizing, eh,,?
              1979 GS1000S,

              1982 Honda CX500 Turbo, 1982 Honda MB5 w/CR80 motor, 1977 Honda "nekid" Goldwing, 1976 Honda CB550F cafe', 1972 Honda XL250 cafe'

              Comment


                If it were me, First I'd try the belt sander to the back of it, little by little (hand fitting between sanding).
                Otherwise how do you know the latches will still line up right?
                Seems like the easiest way. Can't tell by pics exactly.
                Hopefully much less than 10mm needs removed...maybe it swelled up curing or such?
                Good work , great bike too!

                EDIT: Just draw the line on back with a thick marker and observe it while sanding,check whether enough often, is what I'd do. first anyway.
                Last edited by Guest; 10-04-2016, 10:42 PM.

                Comment


                  I think I like the cut and shut idea the best, cheers guys!

                  It should be a lot simpler than taking anything off the rear as long as I'm careful and ensure the cut is nice and straight and even.

                  Hopefully I can get motivated to get out there tonight and get moving on it, motivation was seriously lacking last night after seeing that...

                  And yep Larry, trials and tribulations alright! Surely I've gotta have some success sometime soon with this!
                  1982 GS450E - The Wee Beastie
                  1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                  sigpic

                  450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                  Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

                  Comment


                    Half the fun is the learning process, Pete. Look how far you've come since your 450. You're doing excellent work. I always look forward to the progress.
                    1979 GS1000S,

                    1982 Honda CX500 Turbo, 1982 Honda MB5 w/CR80 motor, 1977 Honda "nekid" Goldwing, 1976 Honda CB550F cafe', 1972 Honda XL250 cafe'

                    Comment


                      Pete, no doubt motivation can sometimes be hard to find but myself and am sure many others following this thread are impressed with your "sticktoitiveness".
                      2@ \'78 GS1000

                      Comment


                        Cheers guys! There are times when you seem to always be 1 step forwards 2 steps back and this has been one of them with the seat. I'll keep persevering because I know once it's done it opens up a whole new avenue of progress moving towards getting a roller done.

                        I got the pillion area cut in half and sat the rear part on to measure the difference at the top, 8mm seemed a good number.



                        Sat back in place after removing the 8mm and looks good to me.



                        Got the two parts as level and stable as I could and they seemed to line up well, so two layers underneath to start with to get them joined.



                        Hopefully I'll be able to give it a test fit tonight and if it looks good I'll add another layer on the top side and add the reinforcing to the seat latch area.

                        If this all works out I'll be pretty close to done...
                        1982 GS450E - The Wee Beastie
                        1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                        sigpic

                        450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                        Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

                        Comment


                          Isn't that still a bit tight? if you spread some padding and then the cover?
                          sigpic

                          Don't say can't, as anything is possible with time and effort, but, if you don't have time things get tougher and require more effort.

                          Comment


                            On the left side yes... I need to sort that. Sorry, forgot to say the left rear bit bulges out a little, must'nt have flattened it against the mould as much as the right side or something... the right side has more of a gap to the tail piece. It's easy fixed, just haven't gotten there yet.
                            1982 GS450E - The Wee Beastie
                            1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                            sigpic

                            450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                            Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

                            Comment


                              Had a bunch of delays lately between fixing the plumbing under the kitchen sink and stupid hours at work, but I'm finally to the point where all it needs is a final tidy up.

                              I've got the day off on Monday and will be taking it down to the upholsterer to get it done.





                              Then I'm going to hit another delay... I've gotta get the 450 on single seat rego by the time it's due in December. Taking a shortcut on this one and using a seat pan I got from eBay, so it should be relatively quick although it needs some repairs... think I'll still be pushing the proverbial uphill with a rake to get it done on time.
                              1982 GS450E - The Wee Beastie
                              1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                              sigpic

                              450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                              Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

                              Comment


                                All tidied up and ready for the upholsterer..





                                1982 GS450E - The Wee Beastie
                                1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020

                                sigpic

                                450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh

                                Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11

                                Comment

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