houseape1000 Posted May 9, 2009 Report Share Posted May 9, 2009 I have recently bought, what I am led to believe, a scorpa easy 250 1996 in black and yellow. It sounds like it is misfiring, and a little short on grunt, the same sound at high revs as a limiter.... It has the rotax engine, and a new dellorto carb, the engine is supposed to have been rebuilt about 3 mths ago. Do scorpas of this era sound like this or should I be looking for a fault, perhaps advance or retard ignition timing.... I am also a little confused as the number on the frame last digit - x which if forums are to be believed is a 99 model, but 99s were not black and yellow, or were they? Please help..... Quote Link to comment Share on other sites More sharing options...
godzilla Posted May 10, 2009 Report Share Posted May 10, 2009 (edited) If your bike has a dellorto and the rear brake master cylinder is fixed to the frame not the motor then its probably a 96. have you tried cleaning out the tank and the little filter in the side if the carb where the fuel goes in? i would probably get a new plug lead cap and plug to be on the safe side, as this caused problems on one of my easys, this should set you back around Edited May 10, 2009 by godzilla Quote Link to comment Share on other sites More sharing options...
houseape1000 Posted May 10, 2009 Author Report Share Posted May 10, 2009 Thanks, Ive been out today and it seems to be worse. I checked the plug again and its oily as hell, what plug should I get for it as the one I took out was a NGK BP8ES, not sure if this is right. Also, do you know where I can get an air filter as there isn't one on it.... I checked the carb over and it is clean, its brand new.. One more thing (for now), do you know the settings for the air/fuel set up for dellorto carb. Quote Link to comment Share on other sites More sharing options...
godzilla Posted May 13, 2009 Report Share Posted May 13, 2009 Scorpa recomend a champion N12YC , but i am 99% sure a BPR6ES works well too. Most of the info you need is hear. http://www.thehellteam.com/information/Rotax-info.pdf Quote Link to comment Share on other sites More sharing options...
b40rt Posted May 13, 2009 Report Share Posted May 13, 2009 Scorpa recomend a champion N12YC , but i am 99% sure a BPR6ES works well too. Most of the info you need is hear. http://www.thehellteam.com/information/Rotax-info.pdf Or BPR5ES, runs a little hotter to burn the crud off. Quote Link to comment Share on other sites More sharing options...
houseape1000 Posted May 13, 2009 Author Report Share Posted May 13, 2009 As for the plug, Ive just bought an iridium tip one, after hearing that they work ok, even if the coil is weaker than it should be. I think its a BPR6EIX, hope it works well. Quote Link to comment Share on other sites More sharing options...
stork955 Posted May 13, 2009 Report Share Posted May 13, 2009 Gday, a 6 is too cold. If Scorpa recommend a N12YC the correct NGK replacement is a BP4ES. Much much hotter. You might get away with a 5 but not a 6. Iridium plugs will only lighten your wallet, especially if they are the wrong heat range. HTH Cheers, Stork Quote Link to comment Share on other sites More sharing options...
houseape1000 Posted May 17, 2009 Author Report Share Posted May 17, 2009 does anybody know where I can get a replacement fan motor from, Im from the northwest uk. Thanks, Quote Link to comment Share on other sites More sharing options...
houseape1000 Posted May 31, 2009 Author Report Share Posted May 31, 2009 just a little update - the guy I bought the bike from sent me the old carb ( the correct one ) and I bought new jets from dellorto uk, cleaned it out about 6 or 7 times and she runs sweet now.... Thanks to all who offered info - Dellorto, Peter Knight(ROTAX) and Birketts......and others.... Does anybody know how to wire the fan. Ive found a green wire with some power in it but cant find a voltage regulator, I think the one above the fan was for the lights, will it work, I don't know, or should I buy one from somewhere......does anybody know where to buy or what part number, or should I phone Nigel at Birketts AGAIN.. Quote Link to comment Share on other sites More sharing options...
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