Hi gang..
I got a bike from a friend that has some issues,, it's a 99 Busa, and it didnt run on all cylinders..
I started checking things out, and he previously changed the stator and crank position sensor..
My first thought was that the new Crank position sensor was from a newer bike (32bit) so I changed it and
put the old one back in, then the bike started running on all cyl's. but... very poorly..ran rich..
I unhooked the vaccum hose from the map sensor (iaps), then it started running better at idle, but badly at higher rpm..
then.... (yes, its a funky bike) I saw that the aps sensor outlet had been blocked..
The iaps sensor is hooked to all 4 throttle bodies..
so, now im a bit at a loss what to do next..
I have 2 busas myself, but both are 2004 models, so i dont think i can (or want) to swap the ecu...
but are the iaps sensors the same between 1999 and 2004..?
any ideas here ? what should I check next?
Compression ok
timing ok
spark plugs ok
fuel pressure ? havent checked
also one thing I noticed, was when the bike was running the lights flickered.. but.. even though the charging is messed up it should run ok? (ran it on a charger = no change)
thanks in advance from Iceland...
I got a bike from a friend that has some issues,, it's a 99 Busa, and it didnt run on all cylinders..
I started checking things out, and he previously changed the stator and crank position sensor..
My first thought was that the new Crank position sensor was from a newer bike (32bit) so I changed it and
put the old one back in, then the bike started running on all cyl's. but... very poorly..ran rich..
I unhooked the vaccum hose from the map sensor (iaps), then it started running better at idle, but badly at higher rpm..
then.... (yes, its a funky bike) I saw that the aps sensor outlet had been blocked..
The iaps sensor is hooked to all 4 throttle bodies..
so, now im a bit at a loss what to do next..
I have 2 busas myself, but both are 2004 models, so i dont think i can (or want) to swap the ecu...
but are the iaps sensors the same between 1999 and 2004..?
any ideas here ? what should I check next?
Compression ok
timing ok
spark plugs ok
fuel pressure ? havent checked
also one thing I noticed, was when the bike was running the lights flickered.. but.. even though the charging is messed up it should run ok? (ran it on a charger = no change)
thanks in advance from Iceland...