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will a 82 850 motor work in a 77 750 frame

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    #31
    ok,
    please pass the pipe back.
    T/Y

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      #32
      Originally posted by blowerbike View Post
      i also would like to add...
      i thought the 80 and later 850 had a roller on top of the cam chain like a kawi.
      the 750 8v. does not.
      if this is true i'm not sure of the problems it would cause or if you just need to use the entire 850 head assy.
      cam chain length/timing issues ect...
      a 750 8v. engine should be able to be bought for 50 bucks and up.
      why make things difficult
      i'm glad that i put.."i thought" in the above post about the roller differences because "i thought" wrong.
      i'd still shop around a little for a 750 engine cheap and just install it be be riding.

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        #33
        Originally posted by blowerbike View Post
        i'm glad that i put.."i thought" in the above post about the roller differences because "i thought" wrong.
        i'd still shop around a little for a 750 engine cheap and just install it be be riding.
        1000/1100 8V had no roller/idler whatever you want to call it. That thing makes it a pain to install/time your cams correctly, usually takes me a couple tries and I've done more than a few... Not sure why they did away with it...you'd think it would serve to make for less wear and tear on the tensioner and chain guides, no? Dunno. Hard to count the pins with it in, though.

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          #34
          Btw, to the original poster... Where are you located??? I have a couple of 750 motors laying about... All need some work (mainly freshened up with new gaskets) or if you could somehow get your motor in a box to me, I could get it back together for you for relatively cheap if you don't feel up to the task. Honestly the best way to learn to work on these things is just to get in there and do it... But that requires patience and time and a little money sometimes, and I know not everybody has one or more or all three...

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            #35
            That sounds interesting..what years would work from the 1000 ?

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              #36
              IM in the london ontario area

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                #37
                Originally posted by alstone89 View Post
                That sounds interesting..what years would work from the 1000 ?
                Any of the 8V 1000 motors WILL fit in a 750 frame. They're actually shorter in footprint by a bit if I understand correctly as they have no kicker and associated gear, so the cases were a oil shorter and lighter. There's a permanent mount in the frame on the left side that would have to be adjusted for... But if you look around or do a search on a "7/10" swap I know there are a couple of different companies that make custom motor mounts for this purpose.. And I'm pretty sure the 16V 1000 katana motor will fit too.. That would be a hell of an upgrade! nice light 750 frame and body, with a pretty good increase in power. But finding a 1000 katana motor mght be tough. An 8valve 1000 motor would be damn fun too... I've wanted to do that swap for years but never find a 1000 motor that's nearby worth the money...

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                  #38
                  a 1000 will not bolt in to a 8v. 750 frame...
                  come on

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                    #39
                    do you own a welder?

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                      #40
                      Originally posted by blowerbike View Post
                      a 1000 will not bolt in to a 8v. 750 frame...
                      come on
                      Might ask TKent, Dardoonk and others who've done it about that. It's not a direct bolt in.. The mounts need adapted, but there are kits out there to do it...

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                        #41
                        just not a simple bolt in is all i'm saying.
                        some of the members on this board has a hard time charging there oil let a lone adapting non fitting engines in there GS's.
                        no offense to the problem-ed oil changers out there.
                        KISS
                        keep-it-simple-stupid

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                          #42
                          Yep, the 1000 (and the 1100) goes in pretty easy. I forget which brackets you need to manufacture (is it the lowers? Somebody remind or I'll be trying to remember for the rest of the week).

                          BUT......... you lose the kickstart. Go the 850 top end route and keep the kicker.
                          79 GS1000S
                          79 GS1000S (another one)
                          80 GSX750
                          80 GS550
                          80 CB650 cafe racer
                          75 PC50 - the one with OHV and pedals...
                          75 TS100 - being ridden (suicidally) by my father

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                            #43
                            Checked my 850 cylinder sleeves last night and they only measured 3mm thick. I'm sure this must be thinner than my 750's, which can have 2mm bored out for wiseco pistons, so I'm hoping for a direct swap with no grinding (I'm a bit paranoid about grit and metal chunks going in the cases).

                            Found an old post by Tkent saying the earlier 850 cylinders were thinner too.

                            I'll compare tonight when I strip down the 750.
                            1979 GS750E

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                              #44
                              yes i do a mig ..i love all these ideas fantastic !!

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                                #45
                                you're thinking of grinding the liners opposed to the cases?

                                .... not the best route imho - far easier to dremmel out the case or get it bored out. the same goes for gsx11 motors and 1150 barrels.... a dremmel and a little patience and they slide right on. loads of other work required but i wouldn't gring the liners. strip the bottom end and do it properly.... just my 2p worth

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