Fuel/oil mix ratio for 8hp Jonson

[learningtocatchem']

I'm hoping to get some answers...I have a 2003 Johnson 8hp 2 stroke short-shaft. I have been using it on a 14' jon for crabbing. I'm having issues with the motor stalling at lower RPM. I have to rev a bit higher to keep it running, which adversely affects the runs on my trot line. The motor runs great at 3/4 to full throttle, with no hesitation, and brings my boat right up on plane. I use a 50:1 mix, but something just don't seem right at the lower speed. What are some things I can check? Do I make a throttle adjustment? I want to change the plugs (champion QL86C) and wires for the new season, and possibly clean the carb, but I would like to make sure I'm not making any mistakes (I don't want to foul a new set of plugs). Am I missing anything?

[MIKE]

Get NGK plugs champions are junk also sounds like carb needs work

[gunsmoke]

Mike is rite champion plugs are junk. Don't over torque the new plugs in to tight, alumium heads will strip [been their done that] 16 to 18 foot lbs if you can get your hands on a torque wrench. Might try useing some fuel additive too. star\tron works great and may clean out those carbs. Good luck.

[rj]

assuming the Idle speed is set right ,,the next thing to check is the low speed carb circuit--dirt,ethanol related gunk ,etc

[billnorman]

If your motor has a decal that says 100:1 you can run that mixture BUT you must buy oil that says it will satisfy 100:1 lubrication demands, not just normal TCW-3.

[Rogerv]

I had same problem with my 1976 JOHNSON 25HP. I changed plug to one step hotter and use 89 octain at a 50/1 mix it idles like a champ now