RCU Forums - View Single Post - GMS 47 tuning problem
View Single Post
Old 10-30-2006 | 12:14 AM
  #62  
Flyboy Dave's Avatar
Flyboy Dave
My Feedback: (21)
 
Joined: Mar 2002
Posts: 13,864
Received 10 Likes on 10 Posts
From: Pinon Hills, CA
Default RE: GMS 47 tuning problem



submikester:


Granted, I am sure the OS with its smaller muffler has more fuel pressure...but I will try it this
weekend with the GMS muffler for kicks. Anyone care to make a wager?

Incidentally my carb looked exactly like yours with the offset fuel inlet.
This might be interesting....I'm thinking if the big fat GMS muffler is leaking all over the place
the pressure to the tank could be almost zilch. Couple that with the mis-drilled fuel inlet and that
would account for a lot of the problems.

Low fuel pressure, and an upright engine leaning out, could lead to a lot of deadsticks.
The muffler swap could be beneficial with the process of elimination.

FBD. [sm=regular_smile.gif]