Page 1 of 1

cutting out on roundabouts

Posted: 30 Oct 2009 02:33 am
by monka
if i'm pushing it a bit round a roundabout my 340 is cutting out,

guessing it is due to the engine getting no fuel, but is this on the carb front or the tank, as i have put £20 quid of fuel in and it still does it.

Re: cutting out on roundabouts

Posted: 30 Oct 2009 12:35 pm
by Speedy88
1.7? Most probably carb float heights m8. For the love of god please check that the fuel return hose is still attached!!! Or your fuel will be leaking all over hot exhaust manifold :wink: Float heights should be 33mm but also weigh your floats to check they aren't leaking - they should be 6g

Re: cutting out on roundabouts

Posted: 31 Oct 2009 04:09 am
by monka
ok cheers mate, will have a search on google about float hights etc as i have err, no clue about carbs. lol

Re: cutting out on roundabouts

Posted: 02 Nov 2009 10:56 pm
by Ride_on
All my carb cars have done this, usually a symptom of fitting good tyres + good suspension. You want injection.

Re: cutting out on roundabouts

Posted: 03 Nov 2009 09:48 am
by Chris_C
Ride_on wrote:All my carb cars have done this, usually a symptom of fitting good tyres + good suspension. You want injection.
Not if you get the float heights sorted! My 1.7 coped on slicks on runways fine, but only if I'd sorted the carb out (and in the end the bloody thing started to wander, so it was a 6monthly job :()

Re: cutting out on roundabouts

Posted: 03 Nov 2009 10:58 am
by Ronnie
Chris_C wrote:
Ride_on wrote:All my carb cars have done this, usually a symptom of fitting good tyres + good suspension. You want injection.
Not if you get the float heights sorted! My 1.7 coped on slicks on runways fine, but only if I'd sorted the carb out (and in the end the bloody thing started to wander, so it was a 6monthly job :()
But you want injection anyway ;)

Carbs are always a compromise - injection is smart.

Re: cutting out on roundabouts

Posted: 25 Nov 2009 12:39 am
by monka
any one got a guide to adjusting the floats on the standard 1.7 carb? the only carb i have ever touched is on my old mini moto, and that doesnt run anymore. lol

Re: cutting out on roundabouts

Posted: 03 Dec 2009 08:50 pm
by st150drew
mine almost does the same... go into a corner ready to attempt a tail out exit and it just almost stops, bogs rite down makin the car almost stop....