Hi All RX Gurus!

I recently changed my carb jets since the previous mechanic did some screw up work that my mileage dropped on the floor.

I took my bike to a renowned garage, there guy advised to change the jets. And that the stock size is 140 for the main jet and 17 for the pilot jet.

When I was asked buy the 140 size Main jet he had also asked me to purchase 165 size main jet. I wonder why? However, the bike currently rides on 140 and have kept the other at home.

I currently experience significant increase in the mileage and also the engine musics to my ears.

I know that increase in the main jet size would actually mean more fuel intake and that would result in better power/pickup.

Can someone throw light on the correlation on the mileage loss by doing so?

Currently I'm enjoying good 35+ mileage.

Now, I am little tempted on the power.( though I cried for getting the mileage of 15kmpl earlier).

The engine now looks like tuned to give mileage, however, if by running on 165 jet size, should there be very little compromise on the mileage would be eager to install.


Kindly let me know on this.
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