iv read threw some of the previous post to make sure this wasn't already covered.
ok so i bought a 81 xs400 and it was not in running shape. took it home cleaned carbs changed oil and plugs new gas. started backfired and wouldn't start again. checked plugs again and i had spark so i checked coils primary and secondary just to be sure also checked wires. then i checked the valves and readjusted to spec checked compression and timing all checked out OK tried starting it again and backfired than no spark went back thew and checked ignition system again and still checks out fine so im suspecting "cdi" any ideas or input?
ok so i bought a 81 xs400 and it was not in running shape. took it home cleaned carbs changed oil and plugs new gas. started backfired and wouldn't start again. checked plugs again and i had spark so i checked coils primary and secondary just to be sure also checked wires. then i checked the valves and readjusted to spec checked compression and timing all checked out OK tried starting it again and backfired than no spark went back thew and checked ignition system again and still checks out fine so im suspecting "cdi" any ideas or input?