A set of high quality aftermarket carb to head rubbers to fit:

229511 Carb to Head Rubbers for Honda ST1100 L, M, N, P, R, S, T, V, W, X Pan European 1990-1999

229511 Carb to Head Rubbers for Honda ST1100 Y, 1, 2 Pan European 2000-2002

229511 Carb to Head Rubbers for Honda ST1100 AN, AP, AR, AS Pan European (ABS) (TSC) 1992-1995

229511 Carb to Head Rubbers for Honda ST1100 AT, AV, AW, AX Pan European (ABS) (TSC) (LBS) 1996-1999

229511 Carb to Head Rubbers for Honda ST1100 AY, A1, A2 Pan European (ABS) (TSC) (LBS) 2000-2002

These are also referred to as "Throttle Body Insulators".

Irregular engine running at idle is usually due to old, hardened or brittle intake manifold(s).

TourMax brand - made in Japan.

Professional installation by a qualified motorcycle mechanic is highly recommended to ensure correct fitment and safety.