What’s up EXUP?
My Yamaha FZR1000 loses power when it gets hot. If I stop the bike and let it cool down for a bit, it’s fine. But when I set off the problem soon returns. What do you reckon? Nige Ryan, email Gary Hurd says: Sounds to me like the EXUP valve is sticking when the bike gets hot. This isn’t uncommon. Time for an overhaul of the valve and make it a part of your regular maintenance schedule. EXUP valves are usually OK if serviced regularly, and not if not