We have a DS50 and a DS90 for our two sons. They were purchased new in 2001 and have gotten to the point where they never run. We take them to the shop, they adjust the carb, replaced the fouled plugs and send us home. As soon as the boys start running them the plugs foul and they quit running. They have no speed whatsoever and the exhaust smokes quite a bit. We are totally frustrated with the dealer and their obvious lack of knowledge. We've heard about restrictors which could be causing the fouling problems. Are there restrictors in them? If so, where are they and how do we remove them? Any ideas? Thanks![img]i/expressions/face-icon-small-mad.gif[/img]

 

are they 4 strokes or 2 strokes? whatever they are, a friend of mine had the same problem and i unscrewed the end of the pipe and cut out the spark arrestor and whatever was restricting flow. then try to take off air box lid, if they even have one..hope this helps make sure choke is off

 

In Oregon I would only deal with Gary at TVI in Hillsboro. I'm sure if you give him a call he can help you get your bikes up to speed. I'm not to familiar with the little Bombs, I wish I could be more help. TVI is the only Bomb dealer that I would let touch my quad.

TVI