Originally Posted by 8&stuff

I have a jpx 21(not the plus). tunes great and runs even better. only prob is that it lean bogs at full throttle, for a couple seconds. I have a mach carb and see that some nova carbs fit and some dont but would rather keep it stock. the bottom needle slide is smoooth. i went around and sealed it everywhere, should that be good enouph? I did a search and seen that sealing should help although wondered if i should try anything else too. thanks for help.