Author Topic: Re: A10 timing  (Read 567 times)

Online muskrat

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Re: A10 timing
« Reply #15 on: 21.10. 2018 04:22 »
G'day Bess.
The Cafe doesn't do that many miles any more and certainly no dirt roads. Still on the original belt so haven't got any big bits in there.
I run her on 35 degrees but she's got 10.5:1 compression and drinking 102 octane juice.
The oil filter is just one of those Notrun style bases with KN153 filters (same filter as most Dupussies)
Cheers
'51 A7 plunger, '57 A7SS now A10CR, '76 XT500, '77 AG175 '83 CB1100F, '81 CB900F project.
Australia
Muskys Plunger A7

Online duTch

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Re: A10 timing
« Reply #16 on: 21.10. 2018 05:16 »
 
Quote
......(same filter as most Dupussies)..

 I like that- nice word play *wink2*....almost time to kick back and watch the GP** as the storm rolls in... *woo*

 **aka 'watching the motos chase each 'round in circles'... *smile*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline Colsbeeza

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Re: A10 timing
« Reply #17 on: 16.11. 2018 11:03 »
Hello Richard Orabanda,
I noticed in the following article in which you covered the results of Dyno testing on your GF that your tappet settings were 10 thou Inlet and 16 thou exhaust. That is a bit larger than book values.
      https://www.a7a10.net/forum/index.php?topic=3747.msg25975#msg25975
I have set mine at the book values of 8 and 10 thou respectively, which I'd like to stick with for a while until I have some experience.
As the valve travel would be greater than your settings, would you expect that I should alter your ideal BTDC setting from 30-30.5 degrees.??  My set timing is currently 32 deg in theory ( or 5/16 BTDC by ciggy paper). In the standard settings, it would seem that the Inlet valve closes a little later thus slightly increasing the air intake, and the exhaust also closes later thus reducing the compression slightly.?? *dunno* Maybe it would make bugger-all difference.??
I have ordered a Timing Kit from SRM and am keen to give it a workout.
Cheers
Colin


Colsbeeza
Australia