gpz500 drag bike

[@Cw1980s]

Hi we were running it on the standard airbox and exhaust to start with but to gain power and lose weight we rejetted the carburettors main jet by 7 sizes with pod filters and a 2 into 1 straight through exhaust which increased the power by 4BHP and an improvement of 1.5 seconds over a 1/5 mile with a personal best of 12.77 second. For the next season we will advance the timing and lighten the crank remove the water pump and alternator and fabricate a ram air system as a experiment

[@pantherx1298]

The bike would do even better with the stock airbox fitted and correctly pressured exhaust.

[@wildracoon666]

What mods did u do to the engine?

[@CatDaddyTuning]

what 60ft time?