• Thermostat to fit the Honda CBR250RR MC22 (1990 - 1999), Honda RVF400 NC35, and the Honda CBR400RR NC29

• Includes Honda O-ring for thermostat housing

• Made in Japan by Tama

• Test fitted on our MC22, NC35, and NC29

Frustrated at the lack of options on the market, we sourced and test fitted a high quality, Japanese made thermostat to fit our Honda CBR250RR MC22. Having subsequently found this option, we also test fitted it to our Honda RVF400 NC35 and Honda CBR400RR NC29. The thermostat fits both the NC29 and the NC35. We also include a new Honda o-ring for the thermostat housing.

Due to the age of these bikes, replacing your thermostat is often a good preventative maintenance task, as years of being submerged in water and being subjected to years of heat cycles can cause parts of the thermostat to disintegrate.

Symptoms associated with a faulty thermostat include:

• taking a long time for the engine to warm up (thermostat stuck open); and

• engine overheating (thermostat closed).

The first symptom, where the thermostat is stuck open, can increase fuel consumption and decrease power, as your bike isn’t running at its optimum operating temperature. Conversely, where the thermostat is stuck closed, your bike may overheat, as the thermostat is restricting the flow of coolant to your engine.