Motorcycle Repair: 1967 honda ct 90 need help, honda ct90 motorcycle, combustion chambers

Question
hello there i have a 1967 honda ct90 motorcycle
rain fine till i got a broken ring had head professionally rebuilt by machine shop that specializes in motorcycle work resembled bike but know cant get motor to run used to start first kick wont start as far as i can tell it is getting gas to the carburetor and good spark at the plug what do you think could be wrong please let me know any info appreciated

Answer
Hi Brian,

Q:  "...hello there i have a 1967 honda ct90 motorcycle
rain fine till i got a broken ring had head professionally rebuilt by machine shop that specializes in motorcycle work resembled bike but know cant get motor to run used to start first kick wont start as far as i can tell it is getting gas to the carburetor and good spark at the plug what do you think could be wrong please let me know any info appreciated..."


A:  Your narrative description is difficult to read and understand.

I recommend performing a compression test followed with a leak-down tst to determine the sealing properties of the combustion chambers (condition of the engine).

These tests will also serve as a quality of work check reference the machine shop's work.

Depending upon the results of the tests, I would make necessary repairs or continue troubleshooting. Need to know if cylinder compression is within service limits first. If so, check and adjust valve clearances.

Respectfully,
Mark Shively