President: Team Full Chat
Join Date: 06-28-2013
Mentioned: 65 Post(s)
Tagged: 4 Thread(s)
Quoted: 657 Post(s)
Reputation Power: 102
Re: Track Bike project - what are these sensors for?
That all looks like the US's version of the "California" model that has a more aggressive emissions control. Those aren't sensors, I believe they are solenoid valves. The can usually houses charcoal or something in it to capture and/or recirculate fuel vapor or exhaust gases. You may notice plumbing around the header too where Honda used to inject fresh air into the exhaust port, or at least something like that.
I'm gonna say it's not needed if you're racing it, but other areas may need to have ports covered or blocked. It's not a US import is it?
My 99 900RR Track Build Link
My Red Rocker 93 Build Link: Café