XH Motorcycles Forum
Motorcycle Resource Forums => Technical Resource Discussion => Topic started by: tbachelor on March 21, 2015, 05:52:15 PM
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Hey guys I am new to this form and I am having problem with my Super X. I have seen this issue on some other posts so I apologize for re-posting. My bike likes to stall after it gets warmed up and won't re-start until it cools back down. I was able to test the crankshaft position sensor and it is coming back at 515ohms. I see that the standard is 532 - 588. Now I am in Minnesota and it is about 40 degrees outside right now so I am wondering if that is playing into effect. But is 515 to far off for this sensor and it needs to be replaced or am I running into some other problem that I need to dig in to? Thanks for any help
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Welcome to the forum. I wouldn't worry about the impedence of the sensor as that is not a reliable test. The only valid thing that will tell you is if it's open (no connection at all) or shorted. I'd consider that reading you got to be in the normal range.
The easiest test would be to ride it until it dies again. After it happens, try to start the engine and watch the tach. No movement of the tach needle while cranking is a sure indicator that either the sensor is bad, or the wiring going to it is damaged.
For some odd reason, the computer does not throw a code when the starter is engaged but, getting no tach signal. I had a completely failed crank angle sensor on 1989 and no codes on the Examinator.
The same bike also had an intermittent road speed sensor that sounded almost the same as what you're experiencing. It would be fine most of the ride, on a cold day. On a warm day, it would get 70-80 miles before the speedo would quit. No other symptoms. Replacing it fixed it for good.
Greg