Dt 125re No power.
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Hi everyone I am Andrew and I have a dt 125 re 2005 which feels really flat. I have just put a new piston and rings in, done the crank seals etc. It ticks over smooth and drives through all the gears but is really lagging in power in ever gear. I have pinned the power valve open half way to try that but it is still flat. You open it up we're it starts to get going but just bottoms out on the revs change gear bottoms out again. When you put full throttle out and max it to the top it starts to miss like it's not sparking right or not getting enough fuel to give it that extra power. does not have that power valve type feeling on it. I can ride it about round the doors but it is so flat. Only Doing about 40 mph top end.
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Pinning the valve half way isn't pinning the valve.
But it'll most likely be restricted.
Perform the derestricted mod, with the first one being the green and black wire behind the clocks, and the bike should whizz through the gears and pull hard to around 12k. Note in this instance the valve should be fully operational.
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@Baileyboy2008 well like Calum pointed out there’s no such thing as pinning your valve half way if the valve is have way closed you will get zero power above 6k open her all the way and then see what it does
