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erratic carby when turning!!!
https://www.ausmini.com/forums/viewtopic.php?f=2&t=15460
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Author:  K-Bar [ Tue Jan 24, 2006 10:23 pm ]
Post subject:  erratic carby when turning!!!

hey guys.

lately ive been fiddling with and tuning my lil 998.. think its been paying off..Had SO many comments from people..."geeeze that sounds nice now" :lol:
and crazy old men on the high way screaming out " hell yeah" when they finaly catch up at the lights. :? :shock:

How ever, when im doing a sharp left turn, the carb seems to lean out...

when the engines a tiny bit cold, it coffs and splutters on a left turn..

whats happening here?? anything i can do??

many thanks if u can help.

later.

Author:  min13k [ Tue Jan 24, 2006 10:28 pm ]
Post subject: 

be cause the fuel bowl is to the left if you are turning hard the fuel is not getting to the needle and seat ...... fixes hif 38 or 44 or webber delorto .... hif series carbs have the fuel bowl under the carb instead of beside them webber and delorto the fuel bowl is on top
makka

Author:  K-Bar [ Tue Jan 24, 2006 10:31 pm ]
Post subject: 

ahhhhh..its just so simple for you makka..lol

logic..

cheers dude

Author:  min13k [ Tue Jan 24, 2006 10:32 pm ]
Post subject: 

yeah i know i'm simple but happy :)
makka

Author:  Mike_Byron [ Tue Jan 24, 2006 10:33 pm ]
Post subject: 

Could also be because an ignition lead is loose and gravity is pulling the lead away temporarily. Fuel starvation does happen but usually at higher Gs and sustained corners

Author:  adeee [ Tue Jan 24, 2006 10:40 pm ]
Post subject: 

Give the carby a good clean. Make sure not to touch the mixture settings or anything else, and leave the needle in, so that is in the same spot. 8)

It might not do anything, but you'll end up with a clean carby. :lol:

Author:  min13k [ Tue Jan 24, 2006 10:42 pm ]
Post subject: 

hmmmm dont listen to them ie poeee or adeee they have no idea poeee cant read plane tickets and adeee thinks she has 6 tits :shock:
makka

Author:  K-Bar [ Tue Jan 24, 2006 11:34 pm ]
Post subject: 

hmmmm

lol.

contact points are looking a lil grey and pitted..might need replacing..

my other thoughts we..perhaps the SU piston is rising to quickly.. the spring might not be doing its job....cos i jump on the gas when im coming out of the corner...but thats too much fuel and not lean at all....same affect tho???

Author:  Rodney [ Wed Jan 25, 2006 8:52 am ]
Post subject: 

This happened to Ribena when I first became her owner - fixed with a carby rebuild and reset the float. No fuel was getting in when I turned left - as Makka sez, because the fuel bowl is to the left. You turn left and the petrol "swishes" away from where it's supposed to be. Reset the float.

Hooroo

Author:  min13k [ Wed Jan 25, 2006 8:52 am ]
Post subject: 

hmmmm what oil you got in the dash pot ???
makka

Author:  fuzzy-hair-man [ Wed Jan 25, 2006 9:16 am ]
Post subject: 

K-Bar wrote:
my other thoughts we..perhaps the SU piston is rising to quickly.. the spring might not be doing its job....cos i jump on the gas when im coming out of the corner...but thats too much fuel and not lean at all....same affect tho???


But it only happens on left handers you were saying :?: my guess if this were the case it would happen on both.

I think the fuel bowl and float is probably the most likely cause it is a well known problem with some SUs (it makes sense)

Tuning dash pot oil and springs may help performance overall but I would doubt it would solve the left hander issue... It is funny that we don't get this problem mentioned more though :? must be we just don't go round corners fast enough :shock: or maybe you get on the gas harder/earlier than most and get fuel starvation :?:

Author:  kazjim [ Wed Jan 25, 2006 9:32 am ]
Post subject: 

Used to happen on my old n/a 998 .....

I took the float bowl cover off, and rotated it 120' ..... i'm pretty sure i set it so the float hinged in line with the axis of the car ... (Front to rear....)

No more "underfuelling" during corners for me !!

Good luck
J

Author:  fuzzy-hair-man [ Wed Jan 25, 2006 9:58 am ]
Post subject: 

kazjim wrote:
..... i'm pretty sure i set it so the float hinged in line with the axis of the car ... (Front to rear....)


Can you do that? Um you would want to rotate it so that float hinged inline as you say but so that the hinge was towards the back right :?: so that it didn't lean out under acceleration

Author:  czerial [ Wed Jan 25, 2006 2:36 pm ]
Post subject: 

used to always happen to Vivian. never fixed the problem, just lived with it.. but used
to shite me to tears

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