hopefully my last 'help me' thread.

[MaybeGuy]

my CB400-N
will not rev happily above 6,000rpm :S
it sounds like there is a rev limiter, but there isnt!
any ideas?
thanks folkies
xxx
(male manly kisses)
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Whosthedaddy]

Whats 'happily'?

From this statement does the bike run as sweet as a nut below the 6k line?

What happens if you are in neutral and just rag the nuts out of the throttle, does the revs climb smoothly or refuse to rev throughout the full range?
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Current : MSX 125 Past : CBR 900RR Monkeybike : c50 LAC : ZXR750 H2 : FZR600 : ZX7R P3 : YW100 : TRX850: Trophy 900 T309 : GSXR 600 L0: Monkeybike : XJ6S Whosthedaddy

[MaybeGuy]

its the same in neutral as it is in gear.
below 6krpm its fine and dandy, once i get there, say im accelerating, as soon as i get to around the 6k mark, its like hitting a rev limiter and if im in gear it lurches back.
the only thing i can put it down to would be either my exhaust not letting enough out, or my air filter not letting enough in, are these sensible theorys?
cheers
x (one kiss)
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Odie]

Sounds like your alternator is on its way out, not enough power to charge the battery and run the bike.
When the R.P.M gets to @ 5,000 / 6,000 rpm the cdi unit requires more power to advance the ignition / timing, thus if the alternator is on its way out it will not give out the power.
Check out your reg / reg as well, check to see if you have 12.5 to 14.5 volts going to you battery, if you dont it will point to reg / reg if you have more than 14.5 volts, if nothing it will be the alternator.
Hope this help
Odie
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You are so ugly when you were born the doctor said "I?m gonna drop it, if it falls is a rat, if it flies is a bat."

[Jammy-R6]

[MaybeGuy]

the alternator is fine i think, because when i rev the bike in neutral to say 3000rpm, the neutral light gets slightly brighter.

it goes past 6000rpm if i do it slowly, its medium to heavy acceleration that it has this problem.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith

[Odie]

[ZaphodBeeble]

1. Take out your spark plugs. If they are black the bike is running too rich, if they are white it's running too lean.

2. If the plugs are black it could be an indication that the plugs aren't sparking and thus igniting the fuel mixture properly. First thing to do then would be to clean or replace the spark plugs.

3. Your ignition coil could be breaking down, the coil would be able to handle a low frequency of charges but as soon as the frequency (and current) increases the coil can no longer support the current going through it.
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Current bike: VTR1000F Firestorm. Previous: Firestorm (written off) - XJ600 Divvy - NSR125 - DT125 and a load of offroaders.

[MaybeGuy]

my sparks are fine, just checked them with the back of my haynes manual, 'normal' apparantly.
if it is the alternator, is it a big job to replace? and will it fit one from a 250 superdream like most of the other parts do?
cheers queers.
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Blue_SV650S wrote: it was a sh1te wheelie, but it proves that he can get it up in 3rd and can do angles. In summery, mattsprattuk is a gobby little sh1tebag, dopehead tw4t, but sadly for all of us, he probably isn't THAT full of sh1te!!
Kickstart wrote: Hi I tend to agree with Matt. All the best Keith