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300 carb

630 views 3 replies 3 participants last post by  SamUK 
#1 ·
Hi everyone I'm new here I have a 87 honda 250 two wheel drive and just for giggles I put a 300 carb on it and it runs great it has great throttle response idles good and runs like a scalded dog until I shift too fourth it acts it's bogging down it ran fine with the original carb on I was just curious any idea waists going on Tia
 
#4 ·
Emulsion tube is wrong or the jet that sits within it. As said above, you can confirm this by the color or the spark plug :)
 
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