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Makotosun

DT400 Reed Valve

  • Andy_C
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DT400 Reed Valve was created by Andy_C

Now that I have got my DT running pretty well, I have been wondering whether I need to look at the reed valve or not.

I assume that the bike will still be fitted with the original steel? petals as I have never taken a look.

Given that the bike starts and runs pretty well should I just leave well alone, or is it worthwhile fitting some modern carbon fibre petals?

Do modern petals give any performance improvements - some manufacturers claim that the do, but I would appreciate a "real world" view.

I welcome your opinions.

Thanks
Ex Yam DT400C, Triumph Trident 660, Triumph 865, Kawasaki KH 400
16 Dec 2022 06:33 #1

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Replied by Gr8uncleal on topic DT400 Reed Valve

If it ain't broke, don't fix it!

If you're looking for something to fettle with, then time to buy another project!
The following user(s) Liked this Post: RT325, AirborneSilva, Ht1kid, Pedalcrazy
16 Dec 2022 07:13 #2

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Replied by Andy_C on topic DT400 Reed Valve

If it ain't broke, don't fix it!

That is the approach I normally take, but thought I would ask.

Not enough room in the garage for any more projects, but there is fettling to be done in readiness for 2023, and the little drip from the clutch operating spindle to be fixed on the DT.......
Ex Yam DT400C, Triumph Trident 660, Triumph 865, Kawasaki KH 400
16 Dec 2022 07:35 #3

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Replied by turbodan on topic DT400 Reed Valve

On the stock reed block they don't do much. Made mine run richer at part throttle but didn't offer any improvement in performance. I would stick with the standard steel reeds.
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17 Dec 2022 08:27 #4

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Replied by Andy_C on topic DT400 Reed Valve

Dan

Thanks for the advice, leaving things as they are make a lot of sense, especially as it seems to be working just fine.

More important that I fix the slight weep on the clutch shaft !!
Ex Yam DT400C, Triumph Trident 660, Triumph 865, Kawasaki KH 400
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18 Dec 2022 05:42 #5

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