Cold High Revs

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Cold High Revs

Postby sir phily » 01:42 am Jan 11 2015

Hi guys here is a strange for you,
I've finally finished my 97 kdx 200 project but run into a snag, when I start it cold with the choke it starts up with very high revs, after a while they slowly come back down, not sure what causes this but I don't like starting a cold motor like that,
motor fully rebuilt with all RB parts and carby new VForce 3 reeds FMF Gnarly pipe,
other than that loving the bike just haven't had a 2 stroke since I was a young feller. :supz:

Cheers Phil
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Re: Cold High Revs

Postby superman27e » 01:55 am Jan 11 2015

It's normal for it to rev a little higher higher on a cold start. Especially if it's been sitting for a while, or if you left the gas on.
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Re: Cold High Revs

Postby sir phily » 02:45 am Jan 11 2015

Thanks for that
yes mainly after sitting for a while
I think I have been leaving the gas on
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Re: Cold High Revs

Postby KarlP » 07:59 am Jan 12 2015

It is normal and likely will do it more in colder weather. You can turn the choke off immediately after starting and work the throttle a bit to keep it running.

In cold weather I'll start with choke, click it off immediately, and sometimes give it just a touch of choke for the first 15-30 seconds.
'08 KTM200xc
'99 CR/KDX Hybrid with that RB stuff done to it
KX100 for the boy
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Re: Cold High Revs

Postby sir phily » 04:45 pm Jan 12 2015

Thanks guys I thought I might have had a carby issue,
still coming to grips with the 2 stroke.

Cheers Phil
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Re: Cold High Revs

Postby superman27e » 04:55 am Jan 13 2015

sir phily wrote:Thanks guys I thought I might have had a carby issue,
still coming to grips with the 2 stroke.

Cheers Phil




Sure thing! Just remember to turn the gas off when putting her away, pull the choke up, push it down once it's started and blip the throttle a little bit until it's up to running temp and then go rip!
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