G9 with G11 Barrels

Information relating to the Matchless G9 or AJS Model 20 500cc twin
matg80s
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Re: G9 with G11 Barrels

Post by matg80s »

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Last edited by matg80s on Sun Apr 07, 2019 10:35 am, edited 1 time in total.
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dave16mct
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Re: G9 with G11 Barrels

Post by dave16mct »

I think you might have trouble balancing the oilfeed to the rockers. Have a look in the Tech articles at 'Twins year by year changes'.
Dave.
raffles
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Re: G9 with G11 Barrels

Post by raffles »

I have been running a G9 with 6oo heads and barrels for the last fifteen years and 12,ooo miles. NO problems at all
Tony
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dave16mct
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Re: G9 with G11 Barrels

Post by dave16mct »

What year are the crankcases Tony?
Dave.
matg80s
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Re: G9 with G11 Barrels

Post by matg80s »

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Last edited by matg80s on Sun Apr 07, 2019 10:36 am, edited 1 time in total.
matg80s
Posts: 52
Joined: Fri Jan 04, 2019 6:05 am
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Re: G9 with G11 Barrels

Post by matg80s »

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Last edited by matg80s on Sun Apr 07, 2019 10:36 am, edited 1 time in total.
raffles
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Re: G9 with G11 Barrels

Post by raffles »

Crankcases will need to be 1956 _on my own are 1958. Tony
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Re: G9 with G11 Barrels

Post by raffles »

As an after thought the 600 crank is stamped with a 6 on top of the timing side web. In my opinion the vibration is no more than as a 500
.Tony
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Re: G9 with G11 Barrels

Post by matg80s »

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