We recently acquired a 1978 dt 400. It apparently hasn't ran in a while (due to the mouse nest in the air box). We cleaned the whole bike up: carb, air filter, fuel, etc and got it to run. The only problem is it will sometimes begin to rev at extremely high RPM and not stop. Someone looked at it and told us it could be the float arm lever or the float needle. It was running -somewhat- properly before the float arm tab was adjusted and now it revs almost as soon as we start it.

What to we do :S???

Thanks!

We recently acquired a 1978 dt 400. It apparently hasn't ran in a while (due to the mouse nest in the air box). We cleaned the whole bike up: carb, air filter, fuel, etc and got it to run. The only problem is it will sometimes begin to rev at extremely high RPM and not stop. Someone looked at it and told us it could be the float arm lever or the float needle. It was running -somewhat- properly before the float arm tab was adjusted and now it revs almost as soon as we start it.

What to we do :S???

Thanks!

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http://65.12.209.183/yamahaforum/index.php