Yamaha's AIS - pumps fresh air into the exhaust to cheat CO emissions testing
Time to fix all that popping. But I couldn't be bothered waiting days (more like weeks) for the parts to turn up... and I had some stuff in the shed I figure I can achieve the same result.
This is all you'll need:
Pliers, #2 Phillips, flat blade, stumpy flat, 5mm hex key,
1/2" carby bungs (x3), stainless steal hose clamps (x3), zippy tie
As always, you'll need a rag (not shown)

