38racing wrote:I just pulled out my 73 massey tiller which last fall would stop running due to fuel starvation . (I could keep it running by shaking enough to get fuel into the upper well).When I got it the year before I had to put points and condenser in it to get it running. I found the problem in the carb and cleaned it out. But it would not start even with a shot of carb cleaner. Found there was no spark. My testing found that I could get a spark if I just grounded the inline tester . But if I put it on the plug (old and new) there was no spark. I pulled the flywheel and the point gap was less than .020. I reset them and it's running fine. I do have a newer 5hp electronic coil I could put on it. In researching it seems that different flywheel keys are used. What is the difference? (other than 50 cents each , minimum order 10)
no difference in keys between point ignition vs electronic - they both use the same key # 222698-S but those keys you are looking at may be a 3-pack (5002K) or 10-pack (Briggs 4181) or some aftermarket version - the single packaged part costs (dealer cost) nearly as much as a 3-pack DIY package. so your best value as an end user, rather than a working shop that might use a few dozen keys a year vs 1-2 a year if that, would be the 5002K DIY packaged 3-pack
Briggs does have a couple other keys they used (like the "antique" ones that used a bolt-on keystone style key) but for the most part,the vast majority of Briggs engines used flywheel key = part number 222698S (222698)