Originally Posted by
DRRC
I just got a second Extech 2 raced tuned yesterday
When I started it today all the settings on the carb were wrong
it was righ and the HSN and LSN were sticking out
I tried the rich settings and still would not work well, very rich
What can I do for this engine and what settings
I am using a dynamite HS pipe, odonell 77 plug, 30% fuel
My first extech race tuned was right on and have not touched the setting since getting it a few months ago with the same pipe, plug and fuel
Are you saying you have been running the engine for months at the break in settings? THe FM and RT models have been run on the bench with break in setting on the carb, you should have to go in SEVERAL hours on the HSN to achieve race tune. What temp is it running at?