Hello Damian, and welcome to the Forum.
If the bottom and middle are clean, and you have tried all assortments of MJ and needle, then there is a possibility there is a problem with the RC Valves. You need to make sure they are opening fully. There could be some debris preventing them from opening fully, or maybe one/both are slightly out of adjustment.
If you want to discuss jetting specifics you will need to do it in the Members Area, as it is not allowed in the public area.
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Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
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