The cap for the CVK40 cut off valve gets warped over time due to being under constant pressure from the cut off spring.
With the development of the cut off mod (included in the MCP Carburetor Correction Kit), and now the cut off block plate (optional), this system is entirely deleted, and the bike runs better and is more reliable this way. The cut off mod (with or without block plate, works best with MCP in the carb)
Check out the MCP Store (google knows how to find us)
Or visit our facebook page, click on photos then albums. In there you have enough information to service, repair, rebuild and inspect nearly the whole machine.
For the record, a person could tape 400 grit wet/dry sandpaper to a piece of glass and figure 8 the OEM cap until its flat. Still works best with MCP in the carb. And the cut off block plate is a nice way to show off that you have the best carb set up there is. MCP
