Thunder Bolt 110 9.8 Won't say running

[Griffinator01]

Hello

I have a mercury 9.8 thunder bolt I think its a 1975 and I can't keep it running I start it will the choke on and play with it a bit openning it but it then trys to stall and I put the choke on again and it runs. I've put new plugs and looked into the carb a little( can see anything at all that would stop it from running) but I'm not much of a mechanic but I am very able to learn.

If its not to much trouble could someone please help me out with this issue, I have tried better gas as well but everytime I open the choke it wants to stall, I've bought some carb cleanner that I will try tomorrow.

Thank you in advance for your time.

Griff

 

[Tyty]

Re: Thunder Bolt 110 9.8 Won't say running

If you havent touched the adjustments they might be fine but I bet cleaning the carberator first not just by spraying it into the carb but taking the whole thing apart and spraying everything after that i would try to re adjusting the high speed an low speed.

 

[Griffinator01]

Re: Thunder Bolt 110 9.8 Won't say running

The setting were messed with, I don't know a lot about boat motors but I know that there are two butter flies in the carb, the first one (starting on the outside of carb) is your choke the second one must be your throttle now that one has black plastic thing attached on the top of the carb I found it stayed closed all the time, the screw in the plastic part wasn't tight to the small shaft so I put a stiff wire in the carb and openned that butter fly a bit and tightened the screw in the plastic part. The motor now runs without stalling so I must be on the right track.

I would like to know where to set that butter fly with the black plastic part, I really hope you understand what I am trying to tell you. I really appreciate your help I would like to get it running soon.

Thank you
Greg