Originally Posted by So*Cal AFDude

A little trouble will my new Arrow Gen II today at Thunder Alley.

Here's the scoop:
-Broke in using heat cycle method. (Pre heat to 200* and do 5, 3 minute runs. Then 3, 5 minute runs. Getting up to 250 each time, cooling between each run. Then tossing on track and running easily for 5 tanks. Then Tune.)
-The motor is about 3 tanks shy of a gallon.
-Stock New Agama 3 shoe clutch with 1.1 springs.
-Go EFRA 2072 pipe (ran on my last Arrow and it ripped)
-Stock Carb.
-Break in shim left it

Now the problem is. It runs good for about 3-4 minutes then randomly I have NO bottom end what so ever. It bogs and runs poorly until the mid range kicks in. Then it pulls for days. There are no leaks, idles great, sounds good on the bench and top. I don't think it's a problem with the motor, but maybe the carb? I ran an OS carb on my last Arrow from day 1 and it was awesome.


Has any one had this problem? And can someone offer any advice onto what it could possibly be? The motor rips when it's running but getting there seams to be a problem at the moment.