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Author Topic: Dyna S Adjust Timing (78 CB750k)  (Read 1541 times)

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Offline crispin

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Dyna S Adjust Timing (78 CB750k)
« on: June 19, 2015, 05:12:25 PM »
I have a 1978 Honda CB750k with Dyna S Ignition.

Should my circuit tester light come on when marker lines up with the 'F' or when it is in-between the advance timing marks?

This is a 17 second video of me lining up with the F. Is this right?

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Offline Tews19

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #1 on: June 19, 2015, 07:56:51 PM »
Man I have no clue nor have I've seen anyone set the Dyna S with a light.. do you have a timing light? That's the easiest way. It takes maybe 2 min to dial in the ignition.
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline RevDoc

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #2 on: June 20, 2015, 09:28:21 AM »
Crispin, the installation instructions for the Dyna S say that when static timing to hold the advancer in full advance and set to the full advance marks. They also say to follow up with a timing light for best results.

If you don't have the instructions shoot me a PM and I'll send you a PDF for them.
« Last Edit: June 20, 2015, 10:13:04 AM by RevDoc »
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Dana

'78 CB550K--Angie
'82 CB750 Custom--Eva



As soon as you straddle a bike expect every other driver on the road to suddenly start competeing for the title "Dumbestsonofa#$%*inallNorthAmerica!!"

Offline PeWe

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #3 on: June 20, 2015, 09:59:37 AM »
'F' will lign up well if the adv springs are OK.
Mine had become sloppy with full advance way too early at 1500rpm instead of 2500 or after. Cut 1/2 turn of both springs. Pamco, Dyna-S and TEC points lined upp correct after that with OK idle and full advance at ~2600-2800 rpms
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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 crispin

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #4 on: June 20, 2015, 02:40:09 PM »
RevDoc, thank you, I will DM you.  8)

I do not have a timing light, but I am not opposed to getting one. I've seen people test it with a circuit tester and it's called Static Timing.
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Offline Tews19

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #5 on: June 20, 2015, 02:41:44 PM »
Static timing is fine but with the light you would be done. Literally 2 mins.
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1969 Honda CB750... Basket case
1970 Honda CB750 survivor.

Offline crispin

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #6 on: June 20, 2015, 02:45:30 PM »
Quote from: Tews19 on June 20, 2015, 02:41:44 PM
Static timing is fine but with the light you would be done. Literally 2 mins.

ok. Do you know of a video or forum that shows me how?
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Offline dusterdude

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Re: Dyna S Adjust Timing (78 CB750k)
« Reply #7 on: June 20, 2015, 05:37:21 PM »
Does dynas website have any tutorials?
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mark
1972 k1 750
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