Re: If the cdi is fried will the bike turn over at all?...
Capacitor Discharge Ignition modules control the spark timing to the engine based on the inputs received from various sensors. There will be no spark if the CDI is bad
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Tryd go to auto shop and check the carburator of your motor and clean your air filter adjust air setting in carburator and put a new fuel pump check fuel setting in carburator
The battery on most new motorcycles is required as a smoothing device and is always the first thing to feed the bike electrics. The alternator is mainly used to charge the battery. There is a very good chance that you have fried the CDI again.
Hi,
The CDi usually breaks down when it gets an over voltage from the voltage regulator.
Try to replace the voltage regulator so that the CDi won't overheat.
Check also the ignition coil, it might have a short circuit it the connection terminal or the polarity is wrongly placed.
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in addition to the cdi you should have a set of pickup coils that help with ignition timing, they are on the right side of the engine behind the side plate, they should ohm at 5k or so. If you check them and one or both shows infinite resistance that may be the problem.
Even though the bike spins over well the battery's on CBR's have to be in tip top condition because the capacitor in the CDI will not release the pulse to fire the coils even though it seems well charged, does this only happen from cold and have you run your jump cables from the battery first as feeding power through the fuel pump will also back feed the battery.
Obviously the CDI is picking up power from the starter button. Check the ignition key switch for proper operation. Chances are that whatever fried the loom also fried part of the switch. Alternate to that, trace the wire powering the CDI system, disconnect it at the source (starter button connection), then find a power source that is live only when the key is turned on and then hook the CDI wire up there.
I assume you got this fixed; sounds like it wasn't getting gas to the carbs. Some people don't realize the 99-02 SV650 has a vacuum-actuated fuel pump, and sometimes it can get stuck. Mine has had this problem, and it took me a while to determine it was the problem. I would guess it only happens after the bike has been sitting a while.
Best way to check it is to lift the tank (it's bolted to the frame on the right side of the engine just under the tank). Unplug the line toward the front of the motorcycle from the fuel pump, and connect some spare fuel hose to it running to a can next to the bike (don't want to get gas everywhere!). With everything else still connected, crank the bike for a short period to see if any fuel comes out (shouldn't take long). If not, then move backward and ensure fuel will flow from the vacuum-petcock when the bike is cranked. If that does work, your fuel pump needs some work. I was able to take mine apart and unstick it.
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