Tell me about "carb freezing".
Discussion
My Thundercat was playing up on my journey to work this morning. Very rough after cruising on the motorway. After sitting at the side of the road for a short while, the problem cleared itself. I'm suspicious this was "carb icing". Can anyone correlate? And how do I go about fixing it?
Carb freezing occurs at freezing, or humid temperatures close to freezing. The fuel vapour condenses inside the carb, resulting in intermittent running, cutting out etc. Some bikes are more prone, particularly if they have forced air intake as on some sports bikes.
The symptoms you describe could well be carb icing. Dealers offer a fix for some models, speak to your friendly neighbourhood Yam dealer to see if one applies to yours.
See also previous posts on this subject.
The symptoms you describe could well be carb icing. Dealers offer a fix for some models, speak to your friendly neighbourhood Yam dealer to see if one applies to yours.
See also previous posts on this subject.
s2ooz said: the tubes for the fuel and air into the clyinder are very narrow, and if carbon deposits have attached to the inside of them, it leaves little room for the petrol/air mix, so when its cold and clouds as described before, it blocks the tubes further.
a de-coke of the pipes can help.
Armed with a Haynes manual, spanners and a large hammer, how do I go about this?
sbyatt said:
s2ooz said: the tubes for the fuel and air into the clyinder are very narrow, and if carbon deposits have attached to the inside of them, it leaves little room for the petrol/air mix, so when its cold and clouds as described before, it blocks the tubes further.
a de-coke of the pipes can help.
Armed with a Haynes manual, spanners and a large hammer, how do I go about this?
maybe not with a hammer...
you can, I believe, get a liquid to either add to your petrol, or poor down the carbs, which eats away carbon. then you flush it out. Similar to those de coking bottles you see in petrol stations.
its like pouring JIF down the sink to clear blocks.
like this - www.mtcchemicals.com/products.html however I know nothing of this websites products, purely example. I suggest your local bike dealer will have a similar product and advice.
DennisTheMenace said: My kawasaki Zx6R has yet to show any signs of carb icing and the bike is notorious for it because of the ram air , even riding home from the dorset dawdle on sunday with temps down to -4 it didnt play up
Apparantly u have to go over 30 before this condition starts to apply
bet ur Spok fingers had a bit of icing though 
BB
I believe Ducati Monsters are know for carb icing too.
If you watch top fuel dragster bikes and cars, they spray a cloud of de-icer via jets into the air intakes prior to lauch to stop this problem...
Obviously the Thundercat is not a topfuel dragster but....
>> Edited by dimmadan on Saturday 22 February 00:32
If you watch top fuel dragster bikes and cars, they spray a cloud of de-icer via jets into the air intakes prior to lauch to stop this problem...
Obviously the Thundercat is not a topfuel dragster but....
>> Edited by dimmadan on Saturday 22 February 00:32
Ballistic Banana said:
DennisTheMenace said: My kawasaki Zx6R has yet to show any signs of carb icing and the bike is notorious for it because of the ram air , even riding home from the dorset dawdle on sunday with temps down to -4 it didnt play up
Apparantly u have to go over 30 before this condition starts to apply
BB
Cheekey Get
I went quite a bit over 30 chasing those bloody plastic 2 seater baths about 
the gloves are excellent must have rode 40 miles home in temps down to -4 last sunday and my hands were lovley and warm ............ my feet though were bloody freezing should have worn my sidis Gassing Station | Biker Banter | Top of Page | What's New | My Stuff