Engine Dying Going Downhill

Discussion specific to the 1995 - 2006 KDX200 (H Series) and 1995 - 2005 KDX220R (A Series) models sold in the USA
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Norm 427
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Engine Dying Going Downhill

Post by Norm 427 »

2005 KDX 200.

Engine idles fine when on the level. But when descending a (steep) hill with the clutch pulled in, the engine quits. To keep the engine alive I have to keep blipping the throttle.

I've installed a new float (measures ~ 17 mm), and new valve in the float chamber, checked and re-checked the jets, ran different sized low speed jets, new reeds (stock) .... but no change. Problem persists.

Ideas?
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doakley
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Re: Engine Dying Going Downhill

Post by doakley »

Let the clutch out. Engine braking will help with the descent. But to answer the question, mine will sometimes do the same thing. Is your idle high enough?
Norm 427
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Re: Engine Dying Going Downhill

Post by Norm 427 »

Idle is high enough, I'm sure. Sometimes in very tight, technical turns I have to pull the clutch in.
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Molly's 70
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Re: Engine Dying Going Downhill

Post by Molly's 70 »

Nature of the beast. Pull in the clutch & blip the throttle here & there.
If you lend someone $20, and never see that person again, it was probably worth it.
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rungrandpa
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Re: Engine Dying Going Downhill

Post by rungrandpa »

I have the problem with my KTM 300. I do not have the problem with my KDX 200. I think it may have to do with float level. I adjusted my float level on my KDX several times before I got it to run well. Now I'm starting the same adjustment routine on my KTM.
Have you noticed fuel spilling while going up or down hills?
I set my KDX float at 16MM.
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KDXGarage
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Re: Engine Dying Going Downhill

Post by KDXGarage »

Molly's 70 wrote: 04:59 pm Mar 28 2019 Nature of the beast. Pull in the clutch & blip the throttle here & there.
harumph, harumph!

That's what I do.
Thank you for participating on kdxrider.net. :bravo:
To post pictures from a device: viewtopic.php?f=88&t=24128
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rungrandpa
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Re: Engine Dying Going Downhill

Post by rungrandpa »

So my son and I went riding this morning - 35 miles in the desert. I had reset the float bowel level on the KTM and I had zero stalls today. Also no more fuel spilling on steep hills.
Problem solved for me.
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