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KZ750B cam chain adjustment
- bikerjim
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- 1986 T-type Regal
- Capt America
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05 Sep 2010 11:35 #396290
by Capt America
I'm gonna go with warmed up.. chuckle :silly:
Capt A merica
1983 K1 750 twin
Ontario, Canada.
Replied by Capt America on topic KZ750B cam chain adjustment
I'm gonna go with warmed up.. chuckle :silly:
Capt A merica
1983 K1 750 twin
Ontario, Canada.
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- bikerjim
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05 Sep 2010 12:31 #396299
by bikerjim
1959 Sears moped, 49cc
50's/60's Peugeot moped, 49cc
50's Mustang motorcycle
1959 Royal Enfield Indian Chief, 700cc
1979 KZ750B, owned since new
Replied by bikerjim on topic KZ750B cam chain adjustment
:ohmy: Well.....you could assume that, and you're probably right, but you know what assume means. I kinda like knowing for sure and not relying on guesswork. 
1959 Sears moped, 49cc
50's/60's Peugeot moped, 49cc
50's Mustang motorcycle
1959 Royal Enfield Indian Chief, 700cc
1979 KZ750B, owned since new
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- Capt America
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05 Sep 2010 15:01 #396316
by Capt America
Capt A merica
1983 K1 750 twin
Ontario, Canada.
Replied by Capt America on topic KZ750B cam chain adjustment
bikerjim wrote:
Sorry bad joke I guess, joking aside.
Motor components expand with heat, chains stretch, correct? So you have a choice.
(1) You can make the adjustment on a cold engine, and possibly have a chain running too tight when engine reaches running temp and wearing out guides, or a chain with slap in it from stretching, either condition can exist.
(2) You can make the adjustment on a warm motor when everything is expanded a bit and chain is stretched and have a snug running chain on a warmed motor. Which will most likely still have slack when cold.
I was proposing that the Kawasaki Manual does suggest with its "Warning" they printed as part of the adjustment procedure. To do it when the engine is at running temperature, but beware hot stuffs! :blink:
In many years on many different motors it has been my personal experience that it is best done on a warmed motor. I've never lost a timing component to breakage, jumped sprockets, etc.
You're right though, why not just put "perform the adjustment on a warm/cold motor." as part of the write-up for the procedure.
I guess "they" ASSUMED all the mechanics working on their bikes would just know.
:ohmy: Well.....you could assume that, and you're probably right, but you know what assume means. I kinda like knowing for sure and not relying on guesswork.
Sorry bad joke I guess, joking aside.
Motor components expand with heat, chains stretch, correct? So you have a choice.
(1) You can make the adjustment on a cold engine, and possibly have a chain running too tight when engine reaches running temp and wearing out guides, or a chain with slap in it from stretching, either condition can exist.
(2) You can make the adjustment on a warm motor when everything is expanded a bit and chain is stretched and have a snug running chain on a warmed motor. Which will most likely still have slack when cold.
I was proposing that the Kawasaki Manual does suggest with its "Warning" they printed as part of the adjustment procedure. To do it when the engine is at running temperature, but beware hot stuffs! :blink:
In many years on many different motors it has been my personal experience that it is best done on a warmed motor. I've never lost a timing component to breakage, jumped sprockets, etc.
You're right though, why not just put "perform the adjustment on a warm/cold motor." as part of the write-up for the procedure.
I guess "they" ASSUMED all the mechanics working on their bikes would just know.
Capt A merica
1983 K1 750 twin
Ontario, Canada.
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