How do I get this little 25cc engine humming at 8000 feet elevation? I've adjusted the high and low jets (needles) and it improved ease of startup and runs slightly better, but it still isn't running at full power and dies easily with any resistance of string into weeds or grass. Aren't there different carb jets for altitude above 7000 ft?
SOURCE: new fuel lines, wont stay run, swapt in/out line, wont stay run
Sometimes simply removing the carb and placing it in a carb dip will clean it without tearing it apart, also check or replace the spark plug. Make sure you have compression, good spark, and that fuel is getting to the carb. If that doesnt work, email me and I'll find you a diagram. [email protected]
SOURCE: My 1981 Honda "CB750K" runs rough at low rpm and
1 and 2 run off different coils so its not electrical
do a compression test after checking all valve clearances
clean the carbs
check for any cracked hoses to the fuel tap,
and check for fuel tap operation, and its not running on prime, no fuel should flow in the run or reserve position until the engine is running.
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