Roundslide Vs. Flatslide Carburetor

[abraham]

Which one would you prefer for touring? what would be the difference?

 

[Cerberus]

Flat slide for me if properly tuned..

 

[Stockbore]

Flat slide for me if properly tuned..

amen

 

[Cerberus]

Ahaha! Praise the carb!

 

[abraham]

Haha.. is there any advantages or disadvantages using this two different carb?

 

[Cerberus]

Im using flats.. noisy piston.. but.. aggresive reving.. even if fast throttled... aaang aaang! But correct me if wrong ha.. i really do experience fuel effeciency... in some point? Hahaha..! Stock bore user..

 

[suplado010]

they say flatslide is more powerful than roundslide...but flat is more on racing racing because it eats alot of gas than roundslide...

 

[abraham]

Im using flats.. noisy piston.. but.. aggresive reving.. even if fast throttled... aaang aaang! But correct me if wrong ha.. i really do experience fuel effeciency... in some point? Hahaha..! Stock bore user..

How many km/L?

 

[motoJBracing]

There is no difference in the amount of fuel that goes into the motor, so really no differece in power if they are the same venturi size and same jetting, the flat slide allows a sharper/ crisper response to throttle openings, racing mainly. But for road riding, some tuners also say that a round slide, VM gives better torque and is easier to jet on low hp motors. For many years till recently all the small 80 and 85 cc motocross bikes use 28mm roundslide carbs. If you hold it wide open full throttle all the time it makes no differnce

 

[Paladin]

I like flat slides better than rounds. Better engine response and better fuel supply on high RPM. Both has the same fuel consumption. Only prob I notice with flat slides is the plunge gets noisy through time.

 

[motoJBracing]

I agree with you to some extent, in that the [replica] flatslides actually are not as well produced as the most copied flatslide, the Keihin PWK. The OKO or KOSO for example.. from experience the OKO slide has a very loose tolerance from new and wears substantially with use. Does anyone now of there being a TM Mikuni copy ?

 

[traxxas-modifier]

I agree with you to some extent, in that the [replica] flatslides actually are not as well produced as the most copied flatslide, the Keihin PWK. The OKO or KOSO for example.. from experience the OKO slide has a very loose tolerance from new and wears substantially with use. Does anyone now of there being a TM Mikuni copy ?

so far i havent found any copycat of mikuni TM series, thats the reason why i only use Mikuni TM carbs

 

[AJM]

@traxxas-modifier how can i determine if keihin 28mm pe is original or fake? TIA

 

[motoJBracing]

The best bet is buying it from a Honda dealer, or direct from Japan.Anything that painted black or red or has yellow plastics on it is a copy. Genuine PE has.. PE... stamped on the main body and a serial number after it. I will post a picture of one I have for sale on eBay at present. You can see the serial number in the first picture, next to air adjustment screw.

 

[nanix]

oh! so mine is genuine! thanks for the info!