Hi,
I was just give a 1977 Columbia Commuter moped. I got it running, but the speed is only about 18 mph. On the engine it says 40 kph, so I assume I should be going a bit faster. I cleaned the carb, changed the spark plug and cap, changed the gas, but what more can I do? What is the proper plug and gap? Thanks!
Dan
clean the exhuast and decarbonize the head and exhaust port
Do you have the sachs engine or the solo engine?
Chris MWH
Thanks for the answers. I have the sachs engine. I am quite new to moped or any motor vechicle repairs, so how do I clean the exhuast and decarbonize the head and exhaust port? Thanks!
Dan
ok go to the top of this page to resources then articles and then to freds guide it'll show you how.
Thanks,
I removed my muffler to see how fast it would go, but it went the same. I noticed something else that I think may indicate something, but I do not know what. As I would run the engine, I would hear pops at a regular interval, I know this is normal, I think it is it firing. Then as I accelerated the interval would decrease, the finally, when reach the top speed the poping would suddenly double in speed. Does this indicate anything? Thanks!
Dan,
Was your performance changing as this happened?
Ron
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