Anonymous
Guest
My 72 roadster was not running properly, no carb adjustments/vacuum gauge synchronization seemed to improve things. Ignition timing (Boyer) was good too. The bike would idle fairly OK and run fine from about 1/2 throttle and up. In between it was very rough, jumpy and downright unpleasant to ride.
Tried different plug NGK/Champion types - no improvement. Then I bought some Bosch Super 4 WR 56 plugs (with four electrodes) and it was like I had a new engine installed. Smoother than I ever thought possible - throughout the entire rpm range, idled at 7-800 and dead steady. Carb adjustment response was instant.
Of course this is too good to be true. So - have any of you out there ever tried these plugs, and what are the horror stories ?
Tried different plug NGK/Champion types - no improvement. Then I bought some Bosch Super 4 WR 56 plugs (with four electrodes) and it was like I had a new engine installed. Smoother than I ever thought possible - throughout the entire rpm range, idled at 7-800 and dead steady. Carb adjustment response was instant.
Of course this is too good to be true. So - have any of you out there ever tried these plugs, and what are the horror stories ?