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 Interesting development.

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Pete Roper
GRiSO
GRiSO


Posts : 3783
Join date : 2013-05-29
Age : 59

PostSubject: Interesting development.   Sat Aug 22, 2015 2:36 am

One thing that surprised me a bit was that early roller tappet 1200's used cambox/rocker assemblies with only one 'Plug Tube'. I thought logic would dictate that when the swap started at about the time the Cali 14 was launched that they would simply use the later, twin plug, camboxes.

It seemed not. All the early bikes still had 'Single Plug' boxes. That seemed to me to be a silly disparity as it would require two different castings. Also all the roller upgrade kits were 'Twin Pluggers'.

Well they must of just been using up old stock because Charlie's new bike has a 'Twin Plug' casting. This isn't to say that the new 1200's use two plugs per cylinder like the 1400's, they don't, but the provision is there in the cambox casting. It makes sense.

Pete
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Josh.C
Grignapoco
Grignapoco


Posts : 127
Join date : 2015-04-17
Age : 33

PostSubject: Re: Interesting development.   Sun Aug 23, 2015 12:48 am

My Dad's Norge 8V has the twin casting too.
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Pete Roper
GRiSO
GRiSO


Posts : 3783
Join date : 2013-05-29
Age : 59

PostSubject: Re: Interesting development.   Sun Aug 23, 2015 4:02 am

Has he sorted that POS yet?

Pete
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Josh.C
Grignapoco
Grignapoco


Posts : 127
Join date : 2015-04-17
Age : 33

PostSubject: Re: Interesting development.   Sun Aug 23, 2015 7:49 pm

Pete Roper wrote:
Has he sorted that POS yet?

Pete

Yeah, I think so. Seems that tuning was the big issue. Both air bleed screws were open so I'm not sure if it had ever had the throttle bodies balanced properly. Also the valve clearances were a bit off. The clatter around the gearbox/clutch is still a bit louder than my GRiSO but I'm guessing that is just how it is.

Thanks for all your help and patience. Wasn't a pleasant start to his Guzzi ownership but he seems to be loving the bike now.
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PostSubject: Re: Interesting development.   Today at 4:46 am

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Interesting development.
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