My 2001 Triumph Bonneville is bad starting particularly when it is cold weather. It fires up then stops, it does this several times before it starts running. When I´m riding it on low revs it feels as if it is cutting out but when I´m driving it harder it seems ok. I´ve put new spark plugs at 8000 Its been bad starting since I´ve had it (3 years) I´ve done 10,000 miles on it. Its done 10,800 miles alltold.