Thanks to Daniel Howe for sending me his description and photos of how he replaced the innards from a narrower CEV switch originally used on mopeds. You will not be able to use the chrome cover or the black plastic base. However, you can adapt the innards to work as shown.
Found this switch for a moped it is a CEV169 switch. A little work with the dremel to make it fit but it's only USD $14.99 instead of the normal USD $84.00. Worth a little time I think and it's fun to work on stuff like this.
Replacing the innards from a narrower CEV switch designed for use with a moped.
Photo courtesy of Daniel Howe.
Replacing the innards from a narrower CEV switch designed for use with a moped.
Photo courtesy of Daniel Howe.
Replacing the innards from a narrower CEV switch designed for use with a moped.
Photo courtesy of Daniel Howe.
Replacing the innards from a narrower CEV switch designed for use with a moped.
Photo courtesy of Daniel Howe.
Replacing the innards from a narrower CEV switch designed for use with a moped.