4K Carb On 5K Instead Of 3K

[PMP020]

hey people.

 

just a quick question to make sure its not a wasted excerise.

 

looking at rebuilding a 4K carb ive got laying around to replace the tired 3K carb which I'm currently running on my 5K.

 

besides the fact the carb will be clean and fresh, will i gain anything from the small upgrade?

 

cheers,

Scott.

[Taz_Rx]

Probably not. 4k has all the anti-pollution stuff hanging off it and 3k doesn't.

[GJM85]

I tried the 3k carb on my hot 5k this afternoon. Runs a shit load better than the piece of shit sidedraft solex's i've been f@$king around with for months. The engine has a 0.7mm overbore making it about 1566cc. The 3k carb makes a whistleing sound and the vac secondries are sucked open at idle.

:no2: NOT ENOUGH AIR....

[altezzaclub]

the vac secondries are sucked open at idle

 

LoL!! Now you know the maximum size a 3K carb will handle... :laff:

 

..and the corolla-ry suggests that a 3K will not run at all well with a 5K carb!

[PMP020]

thanks fellas :)

 

cheers, scott