My bike ran like a champ the previous weekend. However, the following week, I cleaned up the carb and filter. I put a new plug in and the thing would not fire. Decided it was time for a new top end.
Tore down my bike last night to do a top end. I noticed that my HPP valves had some small rub on them from the piston/rings. The piston and rings (Wiseco) had been worn exactly where the HPP is. I first thought that my valves may have been stuck shut but when I put a screwdriver on the actuator, they opened and closed flawlessly.
Confused by this, I took the jug down to my local Honda shop to have them meter the jug to see if it was in spec. After looking closely at the jug, they pointed out that there is a small crack in the jug between the left and right HPP.
This is on a 1991 CR250
A new jug is $430.
Question: Since this is a lined jug, can it be bored and sleeved with a cast iron sleeve with that crack? Anyone else have this problem with any success?
MM
Tore down my bike last night to do a top end. I noticed that my HPP valves had some small rub on them from the piston/rings. The piston and rings (Wiseco) had been worn exactly where the HPP is. I first thought that my valves may have been stuck shut but when I put a screwdriver on the actuator, they opened and closed flawlessly.
Confused by this, I took the jug down to my local Honda shop to have them meter the jug to see if it was in spec. After looking closely at the jug, they pointed out that there is a small crack in the jug between the left and right HPP.
This is on a 1991 CR250
A new jug is $430.
Question: Since this is a lined jug, can it be bored and sleeved with a cast iron sleeve with that crack? Anyone else have this problem with any success?
MM