Honda Spree and Elite 50 Forums

If I increase the air intake flow with a better air filter, and swapped out the main carburetor jet for a slightly larger one would the higher air flow, and more fuel balance out, thus giving me a few more mph?

rush1111 wrote:If I increase the air intake flow with a better air filter, and swapped out the main carburetor jet for a slightly larger one would the higher air flow, and more fuel balance out, thus giving me a few more mph?

Nope. I even did it with no filter and the the MLM tuned pipe made no difference whatsoever. Well it made a difference in the volume of noise from the intake... It just made more racket. More mph on a spree comes for changing the gear ratio. The take off suffers when you change the gear ratio. To get the take off to be livable you need to do more modifications. There is reason why motor swaps are becoming more and more popular for that very reason. If you could just upjet and pull the airbox to get more mph out a spree we all would do it. It would be the number one mod in wikispreedia it is very fun to try and squeeze more out of a stock spree though.

Swap in a bigger engine with variator or buy a faster scooter.
The Spree does not have a variator, that means it is a one speed transmission, engine RPM is your speed limiting factor, if you increase top end speed, take off from a stop suffers, engines that have a variator , are able to leave a stop using a two to one torque multiplication, once the speed increases the variator changes that ratio to about one to one.
No doubt about it, the Honda Spree is a fun little scooter, you would think that turning a magic adjustment screw the speed could increase.

Dio um stock goes 35-45 easy