I just finished rebuilding a KZ750 Motor. I have the book for the KZ650 and ZX900 but they aren't much help with the exact proceedure for installing the cams. Does anyone have the book that could tell me the procedure or photocopy the page(s) in the manual?

1. It's a four stroke, I am concerned wondering about being on the correct stroke even though I am on TDC. Anyway to know by looking at the ignition trigger? Does it matter?

2. From what I understand, the KZ750 was derived from the KZ650 so they share common parts. By looking that the cams, There are different markings for IN, Z6EX, Z7EX. These ones have the bolt through what I believe is the Z7EX for the exhaust and IN for the intake cams. Intuitive yes. So the proceedure should be similar? I think it is just counting the correct number of chain pins/links for this exact mode right?

3.Should the timing mark line up directly with the surface of the valve covers or just above?




4. Does anyone know the number of links to count in order to get the camshafts alighned properly?


5. For this model, the cam chain tensioner is on the back of the cylinders, does this mean that to properly align the cams, the chain needs to be tight from the from of the crankshaft to the exhaust cam as well as over to the intake cam?

Any and all help will be greatly appreciated.

Cheers

 

wait one, I am copying my 750(manual) pages that may be of help.

 

 

Thanks for the photocopy. It helps confirm that the valve timing markings need to be in exact alignment with the valve cover surface. The Photocopy looks like it from a twin model and refer's to pre 80's motors. I believe the pre-80's motors used a regular cam chain and starting in 81 or 82 they used the Hi-VO type chains so the pin count may not be exactly what I need. What I do see that answers my question about keeping the chain tight (given the tensioner is on the front of the motor for the twins) is that I would need to keep the chain tight on the side opposite from the cam chain tensioner. So for the 750-4 with the tensioner on the rear of the cylinders, I would need to align the exhaust cam first keeping the chain tight then align the intake camshaft keeping the chain tight and this will ensure that the tensioner is doing exactly what it supposed to without screwing up the timing.

So based on what I see
1. The cam alignment marks MUST be flush with the valve cover surface
2. Align the exhaust cam first (taking up ALL of the slack with the crank at TDC)
3. Align the intake cam mark flush with the valve cover surface (taking up all the slack). Keeping in mind there is a small cam chain guide that is fitted into the center of the valve cover and will take up a little chain slack.
4. Tighten down the camshaft Caps in the proper order
5. install the Valve cover
6. install the cam chain tensioner

Also an FYI, I think the HY-VO chain link cound in somewhere around 23-24, but that's links and not pins. I think the single roller chains are counted by pins, but I don't know about the HI-VO

Sounds like a Cake walk...not some bad logic for being a couple brews into the night.

Cheers

Once again Dragone your the man!

BTW, I already bucked up for the book...but I'm not waitin.

In other news, I just scored a RUNNING 1978 honda cm400T Hawk for $250.00. I think it might need a head gasket, but I will have to bring it home and take a closer look.

 

does this apply to 83 kz750n bikes as well? mine will idle while the chokes are on but if i twist the throttle or if i shut off the chokes it boggs and dies. any advise? i have cleaned the carbs and also have put new plugs in it