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Message Icon Topic: merry tiller engine Post Reply Post New Topic
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ih674
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Quote ih674 Replybullet Topic: merry tiller engine
    Posted: 12 Apr 2012 at 9:34am
i am currently getting a merry tiller with a briggs and stratton 5hp (i think) going. Could anyone tell me the spark plug gap for this engine? also I can get it to start but seems to run very rich (black smoke) and when you try and lean it it just dies/wont start. also it wont rev at all
 
Thanks,
James
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hortimech
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Quote hortimech Replybullet Posted: 12 Apr 2012 at 12:15pm
sparkplug gap is 30thou, first place I would start is by removing and cleaning the carb, but a bit more info would be nice. Just what b&s engine is it?, is it a 5hp (carb on top of fuel tank, but it could also be a 3 or a 4hp) or is it an earlier 3hp with a separate carb and fuel tank.
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ih674
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Quote ih674 Replybullet Posted: 12 Apr 2012 at 12:47pm
Thanks for the reply, but i just bossed it. I had already gone right through the carb and fuel system. But i had set the plug to 30 thou as a start point and still there is no go, but runs like a dream at 25thou. I presume this means a weak coil.
 
Thanks again,
James
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lauber1
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Quote lauber1 Replybullet Posted: 12 Apr 2012 at 2:12pm
pretty much all briggs engines used a plug gap at .25, and the points set to .20. If its smoking and wont rev up, you may have some speck of dirt came loose and got into the jet. amazing how little it takes to stop up the tube or passageway.
restoring history, one bolt at a time.
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hortimech
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Quote hortimech Replybullet Posted: 12 Apr 2012 at 4:51pm
nope, the sparkplug gap is .030 thou, the coil to flywheel airgap could be too large, try resetting it to between .010 -.014 thou.
Just how old is this engine ie does it have a set of points, if it does, they may require cleaning and resetting to .020 thou.
Final thought, what sparkplug are you using?
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