I'm trying to help my neighbor. His 1999 Whizzer runs perfect when first started, but as soon as it warms up, if you give it any gas it will die. We've swapped out the coil and CDI and it was not either of those. Any ideas?
I even changed my coil & CDI like you did when it happened to me . You don't expect your valve seats to fall out. If it happened to a car they'ed make them recall them & fix it.