Author Topic: If you take off your header and look at the exaust valves how should they look  (Read 988 times)

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Offline lostmykeys

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Just curious as to the color they should be providing the bike is healthy.

Offline dave500

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brown black,,im not sure about the fuel you guys have now though?

Offline PeWe

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Hopefully NOT like this one.  :o
My first surprice during my slow going restore.

Bent valve that most likely happened the last week before the long sleep.
(Me + a hot woman, both very drunk and wild, playing music very loud, I got the wonderful idea to start the bike in the middle of the night, classical drunk revs to hear the wonderful sound.  Back in the appartment again before Police and continue our party in loud and now wilder XXX-stile everywhere in the appartment. Poor neighbours, I avoided them for some weeks afterwards.)

I thought that I had the common running on only 2 cylinders that OEM/not good aftermarket points have given me several times during all years of the 80's. Connector problems in the wirings to the coils too.

I have bought 4 new so they all have the same shape.
The valve guide did not have a radial lash possible to detect with a fresh valve, 5-15mm lift and trying to move it sideways. Good enough for a cheapskate as me. I have avoided ugraded parts for about $1500US. "Best to replace when engine is opened...just for shure..."
« Last Edit: July 14, 2012, 02:56:27 AM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline PeWe

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I remember colors as the sparkplugs, sounds good for me.... Let's hear what the experts says...
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline dave500

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let me get this right??over revving your engine and valve bouncing it to destruction is a swedish thing to impress a female and is in fact a pre requestite for sex?i shouldnt have let mine idle for so long??

bollingball

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let me get this right??over revving your engine and valve bouncing it to destruction is a swedish thing to impress a female and is in fact a pre requestite for sex?i shouldnt have let mine idle for so long??

If that is the case I would buy a used MoPed ;D ;D ;D