Topic: RE: What's Your First Post? That's Where I Was Trying To Send This!

[bill440cars]

What I need to know is: Will the 500 four engine fit into the 550 frame? I know the part numbers are different but that could be for any number of reasons. I have a CB500K engine and need to know if it will fit into any CB550 frame (K or F). I might find a fair deal on a 550 frame but, don't want to waste my time if it won't fit. I would appreciate any input on this. I have to admit, I'm curious what the differences are between the K & F frames and between the 500 & 550 frames. I have read somewhere that the 550 & 650 engines will swap from one frame to the other. Any input there would also be appreciated. I'm new to SOHC and I hope I haven't droped too much on you guys to start off with. Thank you for your time, Bill   

[Paul]

To the best of my knowlage both frames are the same in relation to the engine mounting.
But don't do anything yet. A wise man will be comming along shortly that knows all the answers in relation to the 500's

[SteveD CB500F]

Normally this question is asked the other way (550 engine into 500 frame) which is more common as the 550 is generally accepted as being a better overall unit.

Mountings are the same but the clutch is different so cable length and routing may be an issue.
Later 550s had bar-mounted choke so would need to remove redundant mountings, cable etc.

Can't think of anything else.

Lloyd (TwoTired)?

[TwoTired]

I wonder who this wise guy is that you are all defering to?

I believe the major mount points are the same.  Pretty sure you'll need the CB500 clutch cable.
The F model frame is going to need the F model kick start lever to clear the folding foot peg brake lever, that's moved out to accomodate the factory 4 into 1 system.

That's all I can think of...  Probably unwise, though...

Cheers,

[bill440cars]

Hey guys, I appreciate the quick response. I know the 550 motor is more improved but, that's what I've got. I do have. Has anyone tried to update a 500 w/ 550 parts (like the clutch, for example). Just a thought. I've also got a few 450 projects. A 74' Cl450K6, and 2 74' CB450K7's. I've also got a CB77 Superhawk that someone has disgraced, they put a CA77 engine in it! I think it's a 64' (best I can tell) Several projects and not enough time or money to do much at any one given time. I hope to be able to get serious about them soon and get something done. Catch you later. Bill 

[canttuckmyshirt]

Sorry to bring back old threads... So do the 650 motors easily swap into the 500/4 frame?

[bill440cars]

Sorry to bring back old threads... So do the 650 motors easily swap into the 500/4 frame?

           From what I've learned from this thread and previous ones on the 650, I believe you could take a 500, 550 or 650 motor and put it into a 500, 550 or 650 frame. If I'm wrong , somebody correct me.
Keep in mind that the 650 will have to use a 650 exhaust, whereas the 500 and 550 use the same basic exhaust. Basically, I think that's it. Keep in mind what twotired said about the "F" model . Hope that helps. Later on, Bill


           And about bringing up an old thread, as far as I am concerned, "If You Have A Question,
It Needs To Be Answered. Okay?

[crazypj]

 I'm pretty certain the main difference in frames ( other than 550 being a bit stiffer?) is the side stand location
PJ

[mack808]

I built a 590 yosh engine for a friend and we actually used 500 cases as they are the same as 550, either engine will fit either frame the only external differences are the clutch cable routing for the different style actuators

[dusterdude]

bill,sounds like you and me are in the same boat....too many projects.

[bill440cars]

            You've got it duster. I'm trying to push myself to thin the load down a shade. Problem is, I
       don't seem to make any headway. Not long after I joined the group, Terry (of Australia)
       commented that it seemed like I needed to thin things out some and I agree but, just can't seem
       to find a starting point. Know what I mean? I'm bad about scrounging up things and my wife will
       back that statement. Gonna have to do something to make room for that sidecar that I should be
       getting in the next few days. It's gonna be tough cause, my garage (1-car), storage building       
       (12 x 14), swing set frame w/canvas over it, and 12 x 20 portable canopy (like a free standing
       carport made with tubing covered by tarps) are running over now with project bikes and parts. 
       My 750, w/ the sidecar attached to it, is gonna have to be inside. I'm going to need a lot of luck
       to accomplish this.  Later on, Bill

[dusterdude]

yes you are.

[bill440cars]

      Well thank you duster, sounds like the voice of experience speaking.

[bill440cars]

What I need to know is: Will the 500 four engine fit into the 550 frame? I know the part numbers are different but that could be for any number of reasons. I have a CB500K engine and need to know if it will fit into any CB550 frame (K or F). I might find a fair deal on a 550 frame but, don't want to waste my time if it won't fit. I would appreciate any input on this. I have to admit, I'm curious what the differences are between the K & F frames and between the 500 & 550 frames. I have read somewhere that the 550 & 650 engines will swap from one frame to the other. Any input there would also be appreciated. I'm new to SOHC and I hope I haven't droped too much on you guys to start off with. Thank you for your time, Bill   

  Well guys, this should show you that, even though I have picked up some very valuable info from the time spent here, (since Dec 26, 2005) I haven't gone very far in the PC department. I was actually thinking (I know that that was my mistake) that I could send my first post to the proper thread. I shoulda known. Sorry bout that.     
                                Later on, Bill