How ?

[mensoft]

Guys ,

when we go for a crab tuning or for repair . the mechanic bas use to tune the carb and go and smell the silencer smoke . and come again and doing tuning . even there is no smoke.

actually can we tell abut the correct air fuel mixture with that without using any device or meeter to check ?

and what is the smell is telling about ? and how to identify the correct mixture from the smell ?

can some one explane about this to get some knowledge about .

[Ripper]

well i think he's just checking for petrol fume smell from the exhaust to see if the carb is running too rich....aka...too much of fuel. When there's a balanced burn you shouldn't get "petrol smell" from the tail pipe

and on smoke....usually "blue smoke" is associated with engine oil burn and not with fuel system. blackish smoke and poor performance roughly means unburnt fuel or partially burnt fuel in your exhaust gases.

when the motor runs really good...you usually get steam coming out of the tail pipe

i suppose though you can't have 100% accuracy, a very experienced tuner can tune a carb pretty well just by following this method.

so many carbs were tuned manually long before EFI's came in and fancy machinery replaced good old down and dirty mechanics...

[Simplelife]

Guys ,

when we go for a crab tuning or for repair . the mechanic bas use to tune the carb and go and smell the silencer smoke . and come again and doing tuning . even there is no smoke.

actually can we tell abut the correct air fuel mixture with that without using any device or meeter to check ?

and what is the smell is telling about ? and how to identify the correct mixture from the smell ?

can some one explane about this to get some knowledge about .

I have also seen that, once I asked one of those bass who did that, and he said he can tell from the experience whether there are too much of fuel mixed in the air by smelling the silencer. Basically what he said was if he smell too much of petrol in the air then he can adjust the idle mixture screw… don’t know how accurate this method is ..

[mensoft]

thanks for all for the answers . but i also just check the smell . but i want feel any petrol smell but i can feel some burnt smell is there . is that the smell or you guys are telling about or are we can feel the real petrol smell if its not properly tuned .

Edited February 1, 2011 by mensoft

[MkX]

thanks for all for the answers . but i also just check the smell . but i want feel any petrol smell but i can feel some burnt smell is there . is that the smell or you guys are telling about or are we can feel the real petrol smell if its not properly tuned .

AFAIK if the car properly tuned you don't get a petrol smell from the exhaust. What you get is burnt fuel smell or in sinhala "Kara Ganda".

However I suggest you to refrain smelling the exhault gas for prolong period or make it a habit, as it could end up with having asthma or similar affect.

[mensoft]

AFAIK if the car properly tuned you don't get a petrol smell from the exhaust. What you get is burnt fuel smell or in sinhala "Kara Ganda".

However I suggest you to refrain smelling the exhault gas for prolong period or make it a habit, as it could end up with having asthma or similar affect.

Yes its kara ganda . so what can tell from that ?

[kelum_wj]

Yes its kara ganda . so what can tell from that ?

Buddy if you get the burnt smell or "kara ganda" your carb is well tuned . And as said by another member please do not make it a habit to smell the exhaust gases because you inhale toxic gases which can cause ailments in the respiratory system

[shanX]

Just, just curious, sooo wouldn't that make carb mechanics/tuners sick or something after sometime?? I mean breathing exhaust gases often?

[jdnet]

Just, just curious, sooo wouldn't that make carb mechanics/tuners sick or something after sometime?? I mean breathing exhaust gases often?

lol I was thinking the same thing. All that carbon monoxide is probably bad.....

[charitha19]

ohhh. man.. AL is never boring.. of all the things to talk about.. but wow our mechanics do know how to do thier work...

[mensoft]

Buddy if you get the burnt smell or "kara ganda" your carb is well tuned . And as said by another member please do not make it a habit to smell the exhaust gases because you inhale toxic gases which can cause ailments in the respiratory system

Haaaa Haaaaa . Very happy to here that . I through the burnt smell ("Kara ganda") is coming because of the its not in a correct mixture.

and i have heard people are saying if the mixture is correctly tuned there will be water drooping from the exhaust. is it true ?