I have a header and rejetted Tillotson PK1b carb on a predator 212 and wanted to let you know the sound difference in db of the two mufflers for those who were wondering.
Open header idle- 101 db
Open header WOT- 120 db
Hot dog idle- 95 db
Hot dog WOT- 113 db
RLV idle- 98 db
RLV WOT- 120 db...
I just scored a DB 30 with a 212 predator and chinese torque converter install. Running it around in the yard for 15 minutes, broke the bronze bushing. It seems to run fine without and the only way I knew was when I took off the converter cover to peek inside and to check that all the bolts were...
Just brought home this DB30 with a monster enging conversion. It also has a OldMiniBikes header and torque converter and throttle bracket. Just finished 4 months ago. I have not been on a mini bike since the mid 70's when I had a 3.5 HP Rupp sprint. Wow what a difference. Im from South Jersey .