Updates to 89YZ490?

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9/12/2018 10:05 PM
Edited Date/Time: 9/12/2018 10:19 PM

Anyone try updating a 89yz490 with newer style forks, porting, head mods, race gas, newer style carb, PVL ignition, maybe a rear disc to make a better riding bike? I can get one cheap, was going to use it for all around playbike, maybe a few vet mx events?