[Ajay79]

I recently got a 01 SV650 S and the bike has a gutted ignition but it can be turn on. after a quick look over i tryed to start the bike it turns over but it will not fire i tear into it and theres no spark i no about the resister in the ignition but how do i test it??

 

[TeeRiver]

Unplug the switch form the main harness. Measure resistance between O/Y to B/W. It should be 100 ohms.

 

[Ajay79]

Ol ilwl let u no how it turns out ima work on today thanks man

 

[mad8vskillz]

 

[Ajay79]

So i tested the resistance and it was 94 .9 ohms not 100.so it wont fire then correct??

 

[TeeRiver]

94.9 is good, close enough.
Have you ever heard this bike run?
A common problem on the gen1 sv650 is a failed R/R which caused too high voltage and fries the ignition ignitor box.

 

[Ajay79]

The last ower lost the key and was try n to start it and he pulled the ignition apart thats is the only thing that he done to it so he says but who knows.the last ower didn't know.how to ride and he dumped it and lost the key i picked it up cheap .so 95 is enough how do i check the R/R or ignitor. Box ??

 

[TeeRiver]

Sorry, late reply, Ajay, I missed this.

The only way to test the Regulator section of the R/R is with the engine running. Battery voltage should be low to mid 14v with the engine at 5k RPM. But, gotta fix the spark first...

The service manual shows how to test the Rectifier section of the R/R but don't bother. The rectifiers rarely fail and no matter what, the Regulator still needs to be tested as above, and if that test passes then the rectifier is confirmed good by default.

If the R/R is bad, it is probably the stock OEM part (massive problem with this part) which should be replaced no matter what! If the R/R failed in high-voltage mode it can fry the ignitor box, possibly what happened in your case.

For the ignitor box, it can not be tested stand-alone (not without special equipment). The best way to test it is to swap it into a known running SV650. Or swap a known good ignitor into your bike (not as good a test).

Good luck.

 

[Ajay79]

Ok thnx my partner said he has one to test it and also it only has 95 omhs not 100 so it that enough omhs to have spark??

 

[TeeRiver]

95 ohms is ok, not the problem. The resistance has a window, probably at least +/- 10%.

Does your partner have an SV650 gen1? That would be the perfect test-mule to check your ignitor box.

 

[Ajay79]

I dont think he has a SV but he has alot of suzuki sport bike parts he said he has the igniter box and anything else i would need so im hopeful

 

[TeeRiver]

Good luck. Please let the forum know how it works out.

 

[mad8vskillz]

For the ignitor box, it can not be tested stand-alone (not without special equipment). The best way to test it is to swap it into a known running SV650. Or swap a known good ignitor into your bike (not as good a test).

imo it should ONLY be tested by putting an unknown into a known good bike. doing the opposite risks having 2 fried cdis..

 

[mad8vskillz]

let me run through the no spark thing (im doing it in my head so this is not exclusive...)

to have spark we need:
-spark plug(s) (do both not fire or just one?)
-lead(s) plugged in
-coil(s) plugged into the spark and harness
-ignitor plugged into the harness
-ignitor doing its job (we're in this step now...)
-pickup coil plugged into the harness (white and green wires coming from the flywheel cover up into the harness)
-pickup coil getting the right time from the flywheel (if its bad the cdi will not know when to fire)
-reasonably charged battery

im assuming all of these except ignitor firing have been verified?
tbh id still suspect the resistance/antitheft since that's the last thing that has been messed with. maybe use the plug/pigtail off the broken ignition to make a little test rig with a 100ohm resistor?

not sure your mechanical experience, so i'm gonna roll through some questions that may seem dumb
-are you grounding the spark when you check it?
-is the battery fully charged as you're doing this?
-are all the connectors well seated and not cooked (coil connectors, cdi connector, pickup coil connector, etc)?
-green connector from the ignition... no burned terminals right?
-are all the "safeties" happy (clutch/kickstand/neutral)?

 

[TeeRiver]

imo it should ONLY be tested by putting an unknown into a known good bike. doing the opposite risks having 2 fried cdis..

I agree. In addition to the risk(not large but could happen), there is the also the chance that there be multiple problems with the bike such that even a good ingitor may fail to make spark.