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99 XR400 rev. limiter???

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Mike Schifano

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May 21, 2001, 9:29:40 PM5/21/01
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Does anyone know if the 99 XR 400 has a rev. limiter on it. I've only
had the bike a few weeks and I noticed it starts to break up in the
HIGH rpms. I didn't notice it the first few times out, but it may be
that I didn't hit that high of rpms. Someone told me to check the spark
plug cap because it may be grounding out under heavy load. I didn't
check that yet but I have changed the plug, cleaned the main jet,
changed the gas and tried running it with no air cleaner. Same results
every time. Any help would be appreciated.

Thanks,

Mike

jg...@chello.com.au

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May 22, 2001, 5:07:05 AM5/22/01
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coil could be braking down at high rpm..


jeff dunham

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May 22, 2001, 5:09:35 PM5/22/01
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It does have a rev limiter, I think white brothers sells a cdi box without
one if you want to overrev it.

If the bike is stock, my advice would be to not rev it that high - power
is dropping off and it *is* time to shift!!

jeff
'95 xr300r

Jay C

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May 22, 2001, 2:32:07 PM5/22/01
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Mike Schifano <msch...@nac.net> wrote in message
news:3B09C103...@nac.net...

Yes, the XR4 does have a rev limiter on it. You are probably hitting it,
or, if you've removed the airbox snorkle without re-jetting, you are running
lean on the main. If a lean main jet is the problem, running w/o an air
filter will make it worse.

Jay


RM250

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May 22, 2001, 6:07:22 PM5/22/01
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if you are hitting the rev limited maybe your just not used to the bike i.e.
maybe it get peak HP down low so then your just damaging the engine by going
any higher maybe if you ask someone will tell you where the XR gets peak
HP - maybe on Honda website. If you go too much higher your just going to
lose power and end up right at peak HP when you hit the next gear and then
have to either shift again or over rev again, you didn't happen to ride a 2
stroke before this? - if so you probably need to get used to the low peak HP
revs

Also keep the air filter on at all times!

Charlie

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May 22, 2001, 8:17:07 PM5/22/01
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Jay C wrote:

> Yes, the XR4 does have a rev limiter on it. You are probably hitting it,
> or, if you've removed the airbox snorkle without re-jetting, you are running
> lean on the main. If a lean main jet is the problem, running w/o an air
> filter will make it worse.

didn't realise it'd have a rev limiter. anyone know if my 1990 xr250
would have one? I always scare the crap out of myself when I slip
neutral by accident and rev the tits off it...

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