|
I have never replaced the factory petcock as I have never had a issue using it with a Malossi cast 70cc kit. I also use all the stock vacuum lines and oil pump. As long as you jetting is correct the stock carb will work fine with a 70cc kit, but if you go with a 19mm get a Stage 6 carb as they come pretty close in the pilot/slide/main AND they use the correct atomizer. You may have had a soft seize. Pull the exhaust and look inside the exhaust port for piston scrapping. A cast iron kit can handle a soft seize, you just replace the piston. A aluminum kit will get trashed and need a total replacement. Look in the exhaust hole for piston scoring......
|