weird problem!

So what did you do to fix it?

Probably turned the carb back over.

Customers don't always tell the whole story in the beginning.....(where I work)LOL

Guys I will let the "cat " out of the bag. lol He had drilled the crank case so he could turn the carb around. In doing so he was slightly off center on the new bore and alignment was an issue. He simply oversized the new bore a bit and the engine now runs fine.

jamesrxx951 said:

Make sure the carb pulse port is lined up properly. The engine may have enough pull on fuel with the rpms lower but cannot sustain at high rpm.

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You were right but for the wrong reason. Or should I say "other left" reason.

Robotech said:

Wow. Is that a kit built Dalton Yak hiding in the picture? Been some really nice weather for a maiden.

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I wanted to tomorrow, but My wife is taking my car to take the dog to the groomer, so no maiden yet! Soon though!

Just wanted to make a correction......The DA70 and 60 do not use an o ring like the DA 120 in the aluminum carb plate.

They do have recessed areas though so make sure the gasket aligns correctly as not to partially block it. Guess bolt spacing for the 120 is at a premium as not to allow a "channel" recess like the 70 and 60.