carburateur

bonjour a tous qui pe me dire le quel des deux carbut a le plus gros debit entre le walbro wt 451 668a et le walbro wt 036 603 b merci a vous les pro

ESCUSES MOI mais la derniere fois tu demandais comment attaquer le demontage de ton moulin........
depuis tu recherches un 27O et un changement de carbu

QUE S'EST IL PASSE ENTRE LES DEUX ET quels sont tes soucis exactement?
PS: c 'est histoire de comprendre plutôt de répondre à des brides de questions.......

bonjour j ai 2 moteur zenoah 26 cc un sur ma voiture met il na plus boucou de compretion et un autre de rechange qui a beaucou de compretion avec une autre referance de carbu c est pour cela que je vous posai la question merci a vous

La compression n'a rien à voir avec le carbu

A+

Alain

oui je le c la compretion c le segment et l etat du cylindre je voulai juste savoire le debit

Aucune idée

A+

Alain

D = K x Square Root(C x n)
where:
D=venturi diameter, in millimeters
K= constant between 0.65 and 0.80 (determines the smaller and the biggest diameter to be tested at the specific engine)
C=cylinder displacement, in cubic centimeters
n=RPM at peak power/1.000 (be realistic, dreaming only will make you try carbs far bigger than the correct, with results below your needs)

Stock cags only rev to ~10500 and you can use 0.70 as the constant so:
0.70 x root(40.21 x 10.5) = 13.35mm, obviously the 11mm and 12.7mm walbros are not good enough even for a stock 40, on a hotted up 49cc it would have no chance. Cag carbs are 13mm stock, they can be bored or drilled to 35/64th or 14mm fitted with a V-stack and filter and will work well with most applications.
The carbies listed below are available from most mower repair, chainsaw places and probably some pocketbike shops may be able to order them, google may help. I know ADA have manifolds to fit WA, WT or WYK they also have cable mounting hardware that these carbs may be missing. Reed valve engines can normally handle a bigger carb than piston port motors like that of the midbikes, a midbike normally has the CVT to try and recover from a loss of bottom end, if you have a 13.5 then it will still be good on a mild engine, but the 15mm would be a better choice. With a reed valve you can generally go up to a bigger carb and keep the bottom end. Carb sellection depends on what mods have been done to an engine to let it breath, the engine size and of course the rpm it will be running at.


TOUT çà pour dire que pour 23 26 27 29 cm3 C EST PAREIL
D ORIGINE

apres les carbu dit"preparé" sont plus précis mais ne débite pas plus mais mieux !
plutot réservé aux CE ET CM

A+

Alain