Spit through carbs at 3ooo rpm and running on one cylinder

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jd-man
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Joined: Sun Aug 21, 2011 9:38 pm
Location: Norfolk

Spit through carbs at 3ooo rpm and running on one cylinder

Post by jd-man »

Hi all went for a ride out today at a steady 3000 rpm in any gear it would spit through the carbs and it went down to one cylinder for haft a mile after that it is still spiting througth the carbs it will red line ok i had the carbs off last week
Last edited by jd-man on Sun Mar 11, 2012 7:11 pm, edited 1 time in total.
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benny hedges
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Location: Warrington

Re: Spit through carbs at 3ooo rpm and running on on cylinde

Post by benny hedges »

check the carb rubbers are good & tight - its an airleak causing the misfire.
it helps if you grease the rubbers and carb stub when you fit them.... they do tend to go a bit hard over time and lose flexibilitty.
the clips need to be VERY tight.
you may find it easier to do them up with a 1/4" extension & 8mm socket rather than a x head screwy.

running on one??? assuming you have a 16L tank, i think one of the fuel lines is twisted / kinked.
You do not have to say anything. But it may harm your defence if you do not mention when posting something which you later rely on in quote. Anything you do say may be ripped to sh*t.
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jd-man
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Location: Norfolk

Re: Spit through carbs at 3ooo rpm and running on on cylinde

Post by jd-man »

jd-man wrote:Hi all went for a ride out today at a steady 3000 rpm in any gear it would spit through the carbs and it went down to one cylinder for haft a mile after that it is still spiting througth the carbs it will red line ok i had the carbs off last week
Hi benny it is a 19l tank i filled up tank 20 miles before it went down to one cylinder may be bad fuel
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jd-man
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Joined: Sun Aug 21, 2011 9:38 pm
Location: Norfolk

Re: Spit through carbs at 3ooo rpm and running on on cylinde

Post by jd-man »

benny hedges wrote:check the carb rubbers are good & tight - its an airleak causing the misfire.
it helps if you grease the rubbers and carb stub when you fit them.... they do tend to go a bit hard over time and lose flexibilitty.
the clips need to be VERY tight.
you may find it easier to do them up with a 1/4" extension & 8mm socket rather than a x head screwy.

running on one??? assuming you have a 16L tank, i think one of the fuel lines is twisted / kinked.
Cheers benny :thumbup:
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