Saving a '81 KZ750-E

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08 Jan 2021 17:44 #841394 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I managed to clear enough space to get to my cylinder head bench. Since the valve clearance will decrease as the valves wear into their new seats, I assume it would be better to be at the large end of the recommended clearance of .08 - 1.8 mm.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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08 Jan 2021 18:11 #841395 by Scirocco
Replied by Scirocco on topic Saving a '81 KZ750-E
I think you recommended valve clearance of 0.08 - 0.18 mm :whistle: :whistle: :whistle:

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08 Jan 2021 18:25 #841396 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I am saying it would be preferred to be closer to 1.8 mm than .08 mm for a rebuilt head/fresh valve job.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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08 Jan 2021 18:37 #841397 by Nessism
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09 Jan 2021 01:00 #841413 by Mc Tavish
Replied by Mc Tavish on topic Saving a '81 KZ750-E

Scirocco wrote: I think you recommended valve clearance of 0.08 - 0.18 mm :whistle: :whistle: :whistle:


I think Scirocco is saying dont confuse 0.18mm with 1.8mm.

1978 z650C
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09 Jan 2021 07:58 #841424 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I didn't notice I missed a decimal place... :S

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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09 Jan 2021 11:59 #841439 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I have the following valve clearance measurements:

Exhaust: 1) .18 2) .18 3) .15 4) .18
Intake: 1) .20 2) .18 3) .20 4) .18

#1 and #3 intake are one shim increment over the recommended valve clearance. Looks like I need two more shims, or I run with it knowing the clearance will come into range as the seats wear in. Only .02 mm above the top of the range.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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09 Jan 2021 14:10 - 09 Jan 2021 14:12 #841443 by JR
Replied by JR on topic Saving a '81 KZ750-E
the last time I need shims my local small Kawasaki dealer had them for me in a couple or 3 days. A two pack which didn't cost much. I tend to err on the side of caution.

Your bike is going to be awesome.

1980 kz750E1, Delkevic exhaust
Last edit: 09 Jan 2021 14:12 by JR.
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09 Jan 2021 15:03 #841447 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
I went ahead and ordered the two addition shims I need. Thanks.

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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10 Jan 2021 18:09 #841504 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E

calum wrote: Loads of space!
I imagine you can hardly see the change to the swingarm from the side. Nice work.


It seems to blend better than I expected, for being asymetrical and all.


Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)
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12 Jan 2021 17:08 #841607 by Skidmark
Replied by Skidmark on topic Saving a '81 KZ750-E
Tinkered on the bike for a while today, but it all seems to be "invisible" work. No real changes in appearance. I cut my chain to length, and riveted the master link on. Adjusted the chain tension and torqued the rear axle. Finished with all of the engine mount bolts - a couple had to be hand ground since the same size bolts I could only find with bigger hex heads. All of the motor mounts are torqued now. Filled and bled the rear brakes, and torqued the counter shaft sprocket nut. Sometimes you can tinker for hours and step back and say you got a lot done, but none of it shows!

Retired gearhead
'81 KZ-750 E2
'87 Suzuki Savage 650 Street Tracker (lost in the shop fire)

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12 Jan 2021 18:26 #841610 by krazee1
Replied by krazee1 on topic Saving a '81 KZ750-E

Skidmark wrote: I have the following valve clearance measurements:

Exhaust: 1) .18 2) .18 3) .15 4) .18
Intake: 1) .20 2) .18 3) .20 4) .18

#1 and #3 intake are one shim increment over the recommended valve clearance. Looks like I need two more shims, or I run with it knowing the clearance will come into range as the seats wear in. Only .02 mm above the top of the range.


Sorry I wasn't around to reply sooner, if it was me I would run it with the measurements/shims you have installed and check it in 500 miles or so. A little loose isn't going to cause you any problems, I don't think that is even over spec. enough to cause any noise. I do have another $.85 for postage if you feel that you need a couple more shims.

Mike

Former M.E. at Kawasaki Motors Manufacturing, Lincoln, NE
1966 W1 (the Z1 of 1966-50H.P. and 100mph!)
1974 Z1
1978 KZ1000 LTD
1976 KZ900B pile O parts
1980 KZ750E
1980 Honda XL250S (I know, wrong flavor!)
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