27-08-25, 08:54 PM
Just my own experience.
My EXUP became poorly during covid lockdown - rebuilding the valve was going to be prohibitively expensive and a very long process. (nil parts availability and no access to a machine shop locally).
So I replaced the entire exhaust system with a Black Widow.
I then fitted a 4 degree ignition advancer.
Rode it like that in town, city and everywhere else with no issues at either low, mid or high rpm. If anything it would rev freer.
2002/3 I then fitted an Ivan's kit, along with new manifold rubbers (machined to match inlets on cylinder head!).
Pulls from 25 mph to 1?? in top without any bogging, hiccups or any other issues.
Just ordered a Piper Cross air filter - won't make a massive difference, but then again I'm not looking at improving something that doesn't really need improving.
90,000 miles and still going strong.
My EXUP became poorly during covid lockdown - rebuilding the valve was going to be prohibitively expensive and a very long process. (nil parts availability and no access to a machine shop locally).
So I replaced the entire exhaust system with a Black Widow.
I then fitted a 4 degree ignition advancer.
Rode it like that in town, city and everywhere else with no issues at either low, mid or high rpm. If anything it would rev freer.
2002/3 I then fitted an Ivan's kit, along with new manifold rubbers (machined to match inlets on cylinder head!).
Pulls from 25 mph to 1?? in top without any bogging, hiccups or any other issues.
Just ordered a Piper Cross air filter - won't make a massive difference, but then again I'm not looking at improving something that doesn't really need improving.
90,000 miles and still going strong.