Hello form..
I have a huge bog when quickly snapping open the throttle..2-3sec sputter...then she goes...
I took the exhaust pipe off and found the left exhaust valve was not operating...
Top end was taken apart and necessary parts ordered..
Prior to taking the engine apart I noticed that the bike produced ALOT more power, with no bog, when the choke was pulled all the way out and the air screw as only 1/2 turn out.
Seems to me I'm way too lean on the pilot circuit.
My question is :
I have tested with the choke on full and the air screw only 1/2 turn out and the bike runs awsome...I need a richer pilot no doubt.. How much richer do I go.
Here's my setup.I bought the bike this way.
'90KDX200
FMF pipe/silencer
bossen reeds
air box lid removed
The jetting :
Main 150
Slide Cuttway 6.0
Needle R1172N
Clip position 3rd from top
Pilot Jet 45
Air Screw 1/2 and choke on full ( just to test) I don't ride this way.
Temp 25'c
about 150-250 m above sea level
thanks
Bucket
I have a huge bog when quickly snapping open the throttle..2-3sec sputter...then she goes...
I took the exhaust pipe off and found the left exhaust valve was not operating...
Top end was taken apart and necessary parts ordered..
Prior to taking the engine apart I noticed that the bike produced ALOT more power, with no bog, when the choke was pulled all the way out and the air screw as only 1/2 turn out.
Seems to me I'm way too lean on the pilot circuit.
My question is :
I have tested with the choke on full and the air screw only 1/2 turn out and the bike runs awsome...I need a richer pilot no doubt.. How much richer do I go.
Here's my setup.I bought the bike this way.
'90KDX200
FMF pipe/silencer
bossen reeds
air box lid removed
The jetting :
Main 150
Slide Cuttway 6.0
Needle R1172N
Clip position 3rd from top
Pilot Jet 45
Air Screw 1/2 and choke on full ( just to test) I don't ride this way.
Temp 25'c
about 150-250 m above sea level
thanks
Bucket