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Author Topic: 2010 hyo gv250 efi wont start need help  (Read 422 times)

shana467

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2010 hyo gv250 efi wont start need help
« on: September 13, 2017, 12:33:08 AM »

bike turns over but wont start sounds like it wants  ; here are actions i performed
compression test- 115psi-120psi both cylinders
battery-good voltage
spark plugs have good spark-NEW plugs
ignition coils resistance within specs
injectors spraying fuel into intakes
fuel pump working
pick up and charging coil resistance within spec


Could ECU be the issue- im at a loss
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Dojy_biker

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Re: 2010 hyo gv250 efi wont start need help
« Reply #1 on: September 13, 2017, 12:46:54 AM »

coils connected to the correct sparkplug (cylinder) ?

valve timing correct? (if it used to run and youve not touched it, its probably fine as unlikely both would move on their own ;) )
« Last Edit: September 13, 2017, 12:48:34 AM by Dojy_biker »
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shana467

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Re: 2010 hyo gv250 efi wont start need help
« Reply #2 on: September 13, 2017, 01:06:18 AM »

yes timing is good- checked my question with coils is the wires does the blue/white connect to primary or secondary i wanted to make sure they are all correct
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umop-ǝpisdn

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Re: 2010 hyo gv250 efi wont start need help
« Reply #3 on: September 13, 2017, 02:44:47 AM »

Did anything change? My prior symptoms?
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shana467

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Re: 2010 hyo gv250 efi wont start need help
« Reply #4 on: September 13, 2017, 04:24:43 PM »

the coils are not interchangeable? i will reverse them today and let ya know. still not sure the of the where the white/blue-orange/black pair wires are connected on either primary or secondary coils

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shana467

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Re: 2010 hyo gv250 efi wont start need help
« Reply #5 on: September 13, 2017, 07:01:35 PM »

i reversed coils and still not starting im getting sort of a put put sound like it wants to start
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Hylife

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Re: 2010 hyo gv250 efi wont start need help
« Reply #6 on: September 14, 2017, 11:26:49 AM »

fuel or spark.
1/ remove plugs one at a time and refit HT lead and hold against unpainted part of engine, and crank that starter motor.
Should see nice blue sparks, front and rear.
2/  If test 1 provides good sparks then you have a fuelling problem.
Get some carby/injector cleaner and dose your tank at twice the amount per litre stated on the bottle for cars into NEW fuel.
3/ get some "start-ya-barstard" (ether) in a spray can and get it to fire up that way. Once the engine gets firing the cleaner will do its' job.
4/ Go for a nice long ride.  :D

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shana467

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Re: 2010 hyo gv250 efi wont start need help
« Reply #7 on: September 14, 2017, 05:10:52 PM »

thx will do and update ya
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