Motorcycle Repair: honda crf250x, honda crf250x, vacuum hoses

Question
bike ran good all day, next day to go ride would not start . compression good, got spark, while trying to start exhaust pipe gets warm, checked timing chain and timing marks still lined up. T.P has range from 4kohm's at closed throttle and 1kohm's at full throttle. seems to be getting fuel, plug was wet at one point , backfired a couple of times. But still won't run.Anyhelp or info would be appreciated thanks Jerry

Answer
Hi Jerry,

If weak, the plug may not be arcing under cylinder compression. Clean or replace the spark plugs and try starting. Check plug gap and adjust accordingly.

Check for intake air restrictions and leaks.

Check fuel and vacuum hoses.

Respectfully,
Mark Shively