72 end top end bog

MSP381

New member
Jan 25, 2008
75
0
6
upper peninsula michigan
Why Do I Have A Top End Bog When I Give It 3/4 To Full Throttle. Seems Starvibg For Gas. Idles Great And Low End. I See Two Lines Coming From The Gas Tank. Is There Supposed To Be Air Bubbles In It. I Tried Adjusting The Screw But Does Not Help Or Makes It Worse.

Sorry For The Caps.....Its My phone
 

tar

Well-known member
Nov 26, 2007
560
160
43
Sumas WA
Maybe the carbs need to be cleaned. The main jet could be pluged.
Fuel filter?
Tar
 

retiredpop

Well-known member
Lifetime Membership
Jul 3, 2001
1,109
236
63
Calgary
What make and model? You will see bubbles in the return line to the fuel tank. What screw are you adjusting?