Author Topic: Clutch Hub modification posts  (Read 13316 times)

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Offline 70CB750

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Re: Clutch Hub modification posts
« Reply #50 on: June 24, 2016, 04:38:16 AM »
10W40 initially, then 20W50 - still have the light. 

I have seen that thread too.  I was talking specifically about the grooves Mark mentions rather than the holes.

Thanks though!

Aha, I seen them somewhere, probably in Mark's book. They are just dremel made little grooves on the inner surface, they make the drilled holes look like little stars.

But seems like your problem is somewhere else.
Prokop
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Offline PeWe

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Re: Clutch Hub modification posts
« Reply #51 on: June 25, 2016, 02:51:10 AM »
"Too low oil pressure at idle" .... This can be too low idle. My engine like 1200 rpm or more Up to 1400 rpm is OK. Lamp can blink at 1000 rpm.
Cam will suffer with too low idle. My engine has fresh o-rings and rebuilt oil pump.
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