Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
I don't know your age or mechanical demographic but I'm with DomP on this one.My only reservation is the 750 engine is pretty heavy so you will probably need a hand to lift it out.I was 72 when I fully dismantled my 400 having done nothing on a motor cycle engine since I was a teenager. With the help of members here I restored my 400 starting during the COVID lock down.I've had sleepless night during my first rebuild but it has not put me off doing a second despite a few heath issues getting in the way. If your mechanical knowledge is basic now is the time to learn - even more so if like me you are retired.If it all goes belly up you can send the engine to Bryanj. Take plenty of photos as you strip the bike down, get hold of a Haynes Manual and go for it. Plus download the Honda Manual in Aladdins Cave or Asks dropbox. A parts manual is almost as good as a workshop manual or better for showing how the bike is assembled.If you get stuck this is the site to help you out. If a bloke built it in Japan I'm pretty sure a Shetlander can fix it.👍👍👍
Just so you know that seat has been modified as well.It would be worth taking the engine out and removing the head so you can determine which model top end it is, it is no problem running an earlier top end as long as oil returns are sorted, slightly down on power but are you really going to be able to tell unless you rag it everywhere?If you want i can give you a mobile number to call me when i am sat at work on an evening so i can give you things to look for.Good luck with the project
Personally I prefer SS bolts to the Allen Key Headed ones. If you use AKH bolts on the top of the engine they hold water and fill up with dirt over time. Lots of sellers that do kits so you get a similar length replacements.My 500 was already fitted with SS AKH bolts so to save on costs I just replaced the top casing ones. Not bothered about the side covers being AKH ones.If you look in the parts book the part number contains data indicating the length and thread size in mm, not the thread pitch though. If you search here you will find previous information. There is also a code for if the bolt was Chromed, BZP etc.By looking in the parts manuals you can see the order of the parts for the clutch assembly order in conjunction with workshop manuals.Hope you took plenty of photos as you dismantled stuff, easy to think you will remember how it went then months down the line doubt creeps in.