69 Johnson 4hp exhaust question

I got the 4hp suitcase Johnson from 69 running ran good and smooth after sitting all them years. first baby size outboard.
I have two 4hp from 69 one straight leg the other a suit case, I'd like to run the straight and haul the suitcase for a spare and I need weight up front anyway so I can carry it as a spare and 30lbs of weight motor or rocks I need the weight.
I need to find a good instructional video on carb cleaning and adjustments , not good at carbs myself my hearing isn't good enough to tune by sound.

Thanks for the quick run down, not to argue but I have two knobs one for hi speed adjustment and a low speed one on the front panel?
I, me, couldn't notice any changes turning the adjustment knobs,may not of left it sit at a setting long enough for a change to take place? I don't have a manual yet and working with small engines was 50 yrs ago. I do have some of them wrap around the spark plug wire tachs with hour counter will use that instead of listening for the change, it's just something about carbs that has always given me trouble. I messed with my old 90 cc Honda motorbike forever and a guy had it running perfect in seconds. Some got it an others like me don't. I'll try with the tach an hope someone comes by with the knack and know how to dial it in right. I do thank you for any and all your help getting me up to speed before I am out in no mans land 50 miles from any help.

Johnson model 4W69B and 4WF69B are the two that I have made in Waukegan,Ill. hope this helps.