02-12-16, 08:48 PM
(This post was last modified: 02-12-16, 08:49 PM by pilninggas.)
Very much doubt it will be making it leaner. On a carbed bike fuelling relates to flow rate (bernoullis) and flow rate through the engine can be effected by the exhaust. On an EFI bike fuelling is either the alpha-N or Speed Density, both of which will take data on inlet temp/pressure and therefore inlet massflow, TPS and revs. The inlet parameters don't change if the baffle is pulled (in my experience the FZ1 doesn't even notice the decat), so the algorithm for the EFI is unaffected and the engine runs the same. The only exhaust measure is lambda, but on the FZ1 that only occurs in a small rev range on very small, steady throttle openings and has quite limited effect (mainly emissions appeasement). Potentially decel pops may be more noticeable sans baffle due to the obvious reduction in noise suppression (or increase in noise production).
Potentially you could do back to back runs with and without and look at coolant temp or better still use an IR thermometer and read the downpipe temps (how I do carb tweaks on my fzr and rg these days).
Potentially you could do back to back runs with and without and look at coolant temp or better still use an IR thermometer and read the downpipe temps (how I do carb tweaks on my fzr and rg these days).