Help... cbr250rr cutting out at 100kph

**redliner** · 10th August 2007, 20:50

my bike runs fine but as soon as i get on the open road at about 100kph it cuts out.

it eventually starts again with the choke on and rides fine again at low speed.

any clues as to what the problem might be? it's pissing me off!

**breakaway** · 10th August 2007, 21:00

Revs or Speed? Does it rev all the way to redline?

These bikes have some sort of limiter in the speedo apparnetly, which makes the bike cut off if it goes too fast or some such. Maybe yours is broken and is prematurely cutting off?

**redliner** · 10th August 2007, 21:07

it revs up sweet in the other gears, it is just 6th gear at around 10K revs that it is cutting out.

**Mully** · 10th August 2007, 22:56

Are you on your learners?? You shouldn't be going that fast if you are.

Lord knows I never exceeded 70km/h when I was on my 6L.

**kiwifruit** · 10th August 2007, 23:13

sounds like someone has fitted a speed limiter not unlike the one i use, leave it alone... 100km/h is fast enough

**breakaway** · 10th August 2007, 23:55

Sounds like a speed limiter if it consistently only happens in 6th at 100km/h. Tried it in 5th?

**Indiana_Jones** · 11th August 2007, 10:24

Originally Posted by kiwifruit

sounds like someone has fitted a speed limiter not unlike the one i use, leave it alone... 100km/h is fast enough

If I brought a CBR250RR that only does 100Kph, I'd be pissed lol

-Indy

**redliner** · 12th August 2007, 11:47

yup tried 5th. Ended up pushing ma bike 2km along side of motorway yesterday

U tink it mite be broken speed limiter?

**babyblade250rr** · 12th August 2007, 11:53

sounds like it, but strange though the way the speed limiter works in these things i doubt it could fault unless you got something stuck in the sensor

**babyblade250rr** · 12th August 2007, 11:54

very strange indeed

**babyblade250rr** · 12th August 2007, 11:58

it's alittle piece of metal that rotates with the speedometer, so when it rotates to 180k/hr it passes through a sensor which effectively causes a cut out, i can't imagine how that piece of metal would shift,

How long have you had your bike and when did this occur?? just guessing but it could have something to do with fuel pressure??

**redliner** · 12th August 2007, 12:06

Only had bike for 3 weeks. Only bn up to 100kph three times. Everytime the bike cuts out. Then wont start again.

**babyblade250rr** · 12th August 2007, 12:14

Originally Posted by redliner

Only had bike for 3 weeks. Only bn up to 100kph three times. Everytime the bike cuts out. Then wont start again.

sounds like fuel to me especially when you tell me it wont start again, did you buy it from a dealer? if so take it back and get them to fix it if not i'm sure some of our "Know all" Kb'ers will be able to help