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 GRiSO 1200 Header damage

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Grisoleta
Montanarolo
Montanarolo
Grisoleta


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Join date : 2023-05-21

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PostSubject: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sat Aug 26, 2023 1:19 pm

Hi to all. Take off headers to polish it and found out that the inner layer of the double layered left head header is totally damaged. I wonder what could cause that. Also noticed sufficient lack of power after 7000 rpm.
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Pete Roper
GRiSO Capo
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Pete Roper


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Age : 67

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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sat Aug 26, 2023 4:33 pm

It certainly wouldn't help performance. Best bet would be to source another second hand pipe. I've got half a dozen but getting one to you would be difficult and pricey. Try one of the European suppliers like TLM.

Oh, and out of interest what do you mean by the rev limiter being set at 7,000? Do you mean the warning triangle flashes at 7,000 or is it that the engine stops pulling about there?

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Gootzibird13
Biondino
Biondino
Gootzibird13


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Join date : 2020-10-17

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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sat Aug 26, 2023 10:10 pm

I have a set of stock headers if need be. Just needing a polishing.

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Grisoleta
Montanarolo
Montanarolo
Grisoleta


Posts : 21
Join date : 2023-05-21

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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sat Aug 26, 2023 11:11 pm

Pete Roper wrote:
It certainly wouldn't help performance. Best bet would be to source another second hand pipe. I've got half a dozen but getting one to you would be difficult and pricey. Try one of the European suppliers like TLM.

Oh, and out of interest what do you mean by the rev limiter being set at 7,000? Do you mean the warning triangle flashes at 7,000 or is it that the engine stops pulling about there?
Thanx for reply. I have already ordered a used pipe (new piece is too pricey) and tried to install the normal pipe from my mates bike - much better pull after 7000 rpm to 8500 rpm. But still it feels like it could be better. 
Triangle flashes at 8400 or so.
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beetle
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beetle


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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sat Aug 26, 2023 11:51 pm


That's like looking down someone's intestines....with polyps... Shocked




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Grisoleta
Montanarolo
Montanarolo
Grisoleta


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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sun Aug 27, 2023 12:05 pm

Can’t imagine why did it brake down
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beetle
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beetle


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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1Sun Aug 27, 2023 2:09 pm


Manufacturing fault? I've never heard of one collapsing internally like that. Your guess is as good as mine.



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PostSubject: Re: GRiSO 1200 Header damage   GRiSO 1200 Header damage Icon_minitime1

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