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Old 11-19-2010, 07:00 PM   #1
Alpinestars102
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No spark on F4i

I'm not getting any spark on any of the 4 spark plugs. I've researched it and found it could be a couple of things. Which one is most likely? TPS? Where is the TPS located on an f4i?
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Old 11-19-2010, 08:01 PM   #2
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im also getting 1 short blink and then followed by 8 blinks (FI light)
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Old 11-19-2010, 08:09 PM   #3
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alright i plugged the map sensor and tps sensor in and now there are no codes, but still no spark.
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Old 11-19-2010, 08:22 PM   #4
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How are you testing if you have spark? Its probably the ecu.
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Old 11-19-2010, 09:17 PM   #5
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putting the spark plug in the coil and putting the spark plug onto ground. it worked earlier today, then after i got my bike timed it quit.
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Old 11-19-2010, 09:20 PM   #6
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putting the spark plug in the coil and putting the spark plug onto ground. it worked earlier today, then after i got my bike timed it quit.
Crank or cam sensor?
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Old 11-19-2010, 09:22 PM   #7
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where are those sensors located? any idea?
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Old 11-19-2010, 10:50 PM   #8
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on the wiring diagram it shows a cam pulse generator is that what you're talking about? if so, i cant find it on my bike. It's one thing after another with this bike.. good bike, but its beginning to be a pain in the with all these issues.
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Old 11-20-2010, 01:36 PM   #9
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bump. pleeeease someone lol
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Old 11-20-2010, 02:38 PM   #10
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I am not an expert on F4i's but I would start simple and move to more complex. Make sure you have proper voltage from the battery. Then make sure there proper voltage to the coils, so on and so forth.
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Old 11-20-2010, 02:57 PM   #11
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when you set the timing did anything hit the ipg rotor? if it lost magnetism there would be no spark. other than that just check for bad wires and connections at the ecm and icm. also the ipg connection right behind the clutch cable at the engine. it should be a red 2 pin connector.
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Old 11-20-2010, 03:27 PM   #12
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alright thanks guys. and i just took the valve cover off now the whole side. how would i check if it lost magnetism. alright back to checking wires. appreciate it.
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Old 11-20-2010, 06:00 PM   #13
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has spark now. backfires through the intake. bent valves, out of time, or both?
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Old 11-20-2010, 06:23 PM   #14
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Out of time
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Old 11-20-2010, 07:14 PM   #15
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Seek professional help or your going to have bent valves....lol
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Old 11-20-2010, 09:06 PM   #16
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lol ya i know.. but im cheap. even though it could up being even more costly. i couldve sworn it was perfectly timed "IN" and "EX" were lined up and the "T" mark on the sprocket behind the valve cover was lined up. hmmm
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