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OKO not OK!


breagh
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It's an odd one this but any ideas welcome.

Old Fantic Section with an OKO carb was running fine but after a wet trial decided to clean carb.

Blew out pilot / main etc and now the bike barely runs it's getting a massive amount of fuel.

Float needle valve untouched and the carbs not flooding.floats working as they should.

Needle looks fine .

Really can;t think what's causing this must be something basic to be this far out.

Go tell me what i've done wrong and I'm an idiot.

 

 

 

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A blow gun can unintentionally , destroy the jet block gasket as above ... But make sure you have a proper new one before dis assembly ! They are a wee bit finicky ,but when set up correctly , work quite well . (IMHO)

Glenn

And the original float needle valve in mine got replaced with a kehin one , Hardly perceptible flaws in it and it would spew fuel at the most unwelcome moments ... Found pinholes with a magnifying glass  ... Worked fine about 70% of the time from new and then would suddenly be way rich , or dump fuel ... And then be fine again , pulled out what little hair I've got getting that one cured ! Not a issue since :):) 

Edited by axulsuv
more info ....
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Cheers folks funny feeling you're right about this jet block gasket.

I didn;t hold back with the air line.

It wasn't running consistantly at the trial so pehaps it was dodgy anyway.

Thanks again just have to find out who's got spares now.

 

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Certainly a red face job, there's a small "jet" which sits above the main jet nozzle which I was totally unaware existed.

This was lying on the garage floor which a oko supplier told me it would be .

Certainly a prize puddin of the week on TC award due.

Bikes spot and and for the record miles better than all the modified twinshock Fantics that folk spend £1000s on.

Shame the Sections only worth 50p and 3 Barrs  bottles.

 

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