So I just got my 07 kxf250 back together and I'm having some popping on deceleration. I checked the air boot to make sure its all the way on the carb, and it is. I checked my valves before I put my engine back in and they are in spec. So the only other thing would be jetting, right? Does the popping on decel mean I am to lean? From things I have heard, thats what I conclude.
250F Popping on decel
- Thread starter williamsb27
- Start date
Lean on the pilot circuit...many causes.
Too small of a pilot. Should be at least a 42.
Fuel screw not open enough. Should be around 2 turns.
Passageway above pilot partially clogged. Put a small gauge wire through all the way to the venturi.
O-ring missing on fuel screw.
Exhaust gasket between head and header leaking.
Too small of a pilot. Should be at least a 42.
Fuel screw not open enough. Should be around 2 turns.
Passageway above pilot partially clogged. Put a small gauge wire through all the way to the venturi.
O-ring missing on fuel screw.
Exhaust gasket between head and header leaking.
How bad does yours do it? I just barely let off and all I hear is "pop,pow,pop" something like that
what you said reminded me of this 
AgentSmith has given you very good advice..
So how would I know if I had an exhaust leak? Is there something I can do to know? Like on a car you can do the smoke test.
That only works on intake manifolds...not exhausts...
Buy the $ 3.00 crush gasket and replace it.
TWS...are you sure you're talking about the exhaust? I thought you did that for the intake to see if there was a leak. :excuseme:
Going to order a # 42 pilot jet and see what this does.
Alright the 42 pj fixed it, thanks for your guy's help