I did mine using the included instructions from NewBonneville.com. It took me about 30 minutes from opening the package to test ride.
T.L.
I got this from
http://www.tribalaccessories.co.uk/
Here's some instructions...
1. Remove the tank (see Haynes manual 3:3) it's easy.
2. Pull the rubber pipes off the chrome tubes that go into the cylinder head. You may need to force the clamps open a bit first. They DO come off with a bit of a yank !
3. Remove the tubes from the cylinder heads one at a time, being very careful not to let anything/debris to fall into the head through the hole. Use a long reach plug spanner, or similar, for this.
4. After removing each tube, fit the stainless plug and copper washer (in the kit supplied) as you would a spark plug (Torque to 20Nm). NB! be careful not to cross, or overtighten/strip the thread.
5. Pull the rubber tube from the air filter box and fit the bigger plastic plug (in the kit supplied) in the vacated hole.
6. Pull the corrugated plastic pipe from the carb and fit the small rubber cap (in the kit supplied) over the vacated port.
7. Remove the valve assembly from the frame (re-fit the bolts.....you will be able to find them again then, if you ever want to reverse the whole job).
8. Re-fit the tank. NB! Be careful not to pinch the breather pipe !
Job done..! Any problems, just give us a call on +447803 851301 and we’ll try to help.