Grand Prix 125
Main Motorcycle: VFR800 Pre VTEC
Join Date: Aug 2019
Location: Epsom, Surrey, UK
Other Motorcycle: Daytona 955i
Ok, great, I'll probably have a go at that - I had the tank off last week empty..!
Been reading a bit on the reset - mines has an O2 sensor so I dont see the adaptation button on the Tune ECU software. Re-applied the correct map anyway. Do I need to do the 20 minute tickover, no touch throttle / wait for fan to kick in thing - or is mines like this:
The fuel system fitted to the above models is adaptive. This means that the engine management system will
self-adjust air fuel ratio (i.e. the mixture setting) to its optimum level in order to ensure differing running conditions do not result in poor running.
During an adaption, the engine management system examines the air--fuel ratio as measured by the oxygen sensor in the exhaust system and, if necessary, makes an adjustment. In some cases, a single adaption may
be sufficient but in others, more adaptions will be necessary.
An adaption take place when all the following conditions are met:
Gearbox in neutral, clutch engaged.
Coolant temperature 80 -- 100 įC
Airbox temperature 21įC minimum
Engine idling for 10 -- 30 seconds
Once adaption has taken place, the settings are retained ensuring that adaption is not necessary every time
the engine is started.
Particularly for new bikes, where the engine has not been run-in, it may be necessary for dealers to ensure adaption has taken place before handing the motorcycle over to the customer. This can, of course, apply at
any other times as well.
To force adaption to take place, start the engine and warm it up until the above conditions aremet, adaption
takes place automatically. Blip the throttle every 30 seconds to start another adaption cycle. When coolant or
airbox temperatures are above or below adaption thresholds, allow the engine to cool or warm-up before