Hi, so im looking for help i jave a problem with my cbr 1000rr 08 that it hesitates or sputters when you are in a complete stop and then take off the bike will stutter until it passes 3k rpm bike will to a power wheelie if im in 1st and let the bike get below 3k say i hit 2k and bike is rolling if i teist the throttle the bike will bog down and be like that until pass the 3k once it passrs 3k you will fill the power kick in i know i should not ride below 3k but i also think it not normal for the bike to stutter when you are taking off from a red light i have change: fuel pump (its used and working perfect) Spark plugs All 4 coils Wiring harness 8 injectors Ecu Throttle body Lower injectors wiring Tps (and was calibrated) Cam shaft sensor Air sensor Fuel lines and they are not kinked Throttle cables Stator and regulator And clutch kit
It almost sounds like a cylinder problem, can you take out the plugs and see if one is running rich or fouled , a compression check at this stage would be helpful , if you have a power commander on take it off for this check, one of these tester's on your down pipes will show if they are all getting to temperature on idle https://www.ebay.co.uk/itm/Laser-IR...775586?hash=item4467a706a2:g:WSwAAOSwgRhfkqv6
The temp could be up to 90c , but as long as they are all the same that will show an even feed to the cylinders , if one is low that will be the one to concentrate on (if it's a cylinder problem, or fuel feed to that cylinder)
Also threw some water on headers and header 2 from right to left did not evaporated the water fast like the other 3
Hi @Alexvaldes31 - I’d be inclined to think it was the primary injector on the cylinder you’ve identified as not getting as warm as the other three. A compression test is worth doing to illuminate/identify any other issues for sure, but you say it runs fine over 3K revs which makes a compression issue less likely (IMHO)
ive Had a similar issue with a non Fireblade before it would do pretty much exact same thing and was a stretched timing chain caused either just bad engine or the ecu to get confused and cause the stutter I don’t know how hard it would be to check the engine timing ie whether all the timing marks line up possibly someone else here could advise on that?
