Quote:
Originally Posted by Alabamanoob
Sprockets replaces. New battery. Turns over smooth. Not firing. Won’t crank. Plugs and coils are good? How do I check the timing
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No need to check ignition-timing, it's fixed and computerised. Could check coils and spark:
1. measure resistance across coils' primary terminals. What is this number?
2. pull spark-plug wire, insert spare plug, ground-case of plug. Push START, do you see spark jumping gap at plug?
If so, entire ignition system between pick-up coils at crank to spark-plugs are fine. What's preventing bike from running is insufficiently cleaned carbs. They worked perfectly fine when bike left showroom floor. You need to clean carbs back to factory-fresh condition.
I. In addition to clearing out jets, did you clear out each bleed hole in pilot-jet and emulsion tube? Each tiny hole needs to be cleaned with matching size guitar wire. I also like to drip coloured-dye through centre of these and verify that every hole "bleeds" correctly.
II. You'll also need to clear fuel-passages in carb-body that delivers petrol to jets. It's similar to nozzle at end of garden-hose. You've been cleaning nozzle, but there's still clogs in hose. Need to clean hose as well.
Quote:
Originally Posted by n4mwd
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Most important to clean are choke and pilot circuits to get bike started. But all other passages should be cleared with mechanical scrubbing as well.
III. Float-valves must seal and stop petrol flow for correct fuel-level in float bowl. If you've got petrol leaking out your vent/overflow tube, float-valves are not sealing. They must be replaced and their seats must be inspected for proper sealing.
Please review some threads linked at end of this thread:
https://www.ninjette.org/forums/showthread.php?t=336365