01-03-12, 12:29 AM
If it is stuck in the fully closed position (remember it opens up a bit even for tick over) then yeah I'd expect it to strangle the bike.
Yes once you get it working it is easy to keep it working. Just strip and copper ease once or twice a year. Easy job.
The reason so many of them are seized is that Yamaha don't mention it in the service manual. But it needs a service at least once a year.
The real muppits (dirty thieving muppits) are all those Yamaha dealers that charge you a fortune for servicing your bike, then charge you another fortune to fix the EXUP valve they all know will seize if they don't strip and copper ease it.
Yes once you get it working it is easy to keep it working. Just strip and copper ease once or twice a year. Easy job.
The reason so many of them are seized is that Yamaha don't mention it in the service manual. But it needs a service at least once a year.
The real muppits (dirty thieving muppits) are all those Yamaha dealers that charge you a fortune for servicing your bike, then charge you another fortune to fix the EXUP valve they all know will seize if they don't strip and copper ease it.