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1987 kx 250
bens87braap:
Carb fixed I used Spiral Flute Screw Extractors to remove pilot jet then bought all stock jets and started tuning from their Main Jet 320
Pilot Jet 35
2 turns out air screw
2nd top clip on stock needle
Bike is running awesome with no power valves the only issue i can see is the snap from nothing into band now is so more aggressive those power valves really did smooth out the band, u notice it heaps after removing them lol
motopunk:
the feeling without powervalves is similar to the older kx250 from 84 and older... little bit like modern 125.. first decent power and with the right rpm: woohoo ... 8-) ...
you should try to find good used powervalves maybe 85 to 87 could be very similar ...
bens87braap:
87 is a one off year for power valves i have been looking as i only need one side. I even bought some tecate 87 ones but they are bigger and i dont want to machine the cylinder to make it fit. Bike does everything i want it too, I dont race it just mainly take it camping and ride on my farm
motopunk:
the 88-92 power valves are also discontinued ... :-)
you could only try to find good used ones or a complete 87 cylinder or engine... at the moment i am thinking of reproduce them , but thats not so easy as it looks...
bens87braap:
Iv Done it finally a brown plug not a dripping black plug the Bike is lifting in top gear, and I was just getting used to it now its a different bike so much more power went down to a 310 main on 2nd from top clip. 2 turns out on air screw check this out
:mrgreen:
https://www.youtube.com/watch?v=8kj-7zWJELQ&feature=youtu.be
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