The FWW will do a fine job to smooth out the power to reduce the hit and help prevent the bike from stalling, but a FWW will not add low end power.
Part of the reason the hit on these MX bikes seems so drastic is partially due to the lack of low end power. I did some similar mods to a YZ85 for my son to ride in the woods. One helpful modification is similar but opposite to what GG riders do to increase top end power. This modification raises cylinder by adding base gaskets to delay port timing and move the power band higher into the rpm range. Conversely, you can move the power band on these MX bikes to the lower rpms by having the cylinder base cut. This moves the cylinder down, advances the port timing and raises compression, both of which increase bottom rpm power. Eric Gorr did this mod for $50 in the past.
In addition to the other mods mentioned by others, I would also advance the ignition timing a few degrees to increase bottom end power and reduce top end power.
|