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View Full Version : 2007 Yamaha Apex WONT START!!! ANY IDEAS?


oonighttrain
12-19-2009, 01:12 PM
got an 07 apex.. cranks and cranks but wont fire,.. even sprayed a touch of starting fluid in it.. nothing....

any ideas?? THANKS FOR ANY IDEAS YOU MAY HAVE...

camshaft
12-19-2009, 01:34 PM
check battery voltage 12.5 or higher,load test if possible they are very finaky about low battery power.
make sure fuel pump is running when u turn key on ,check fuse.
last but not least change plugs.
hope this helps!!!!!!!!!!!!!

Duke
12-19-2009, 02:08 PM
Any codes?

Bigrock33
12-19-2009, 07:16 PM
As mentioned, low battery will crank but plugs will not spark. Pull a plug, connect, ground and turn over. If spark, check fuel delivery. If no spark, charge battery or replace. Probably one of those two, i'm betting on the battery.

Boosted Brad
12-20-2009, 12:02 PM
had to put a battery in mine this year try jumping it

BBNytro
12-20-2009, 05:42 PM
I know if the apex can foul plugs they will not fire at all even with a boost. It happens if you start and not warm them up fully or run regular fuel

Mtn-Track
12-23-2009, 01:18 PM
got an 07 apex.. cranks and cranks but wont fire,.. even sprayed a touch of starting fluid in it.. nothing....

any ideas?? THANKS FOR ANY IDEAS YOU MAY HAVE...

I'm 99% sure your plugs are fouled! Mine did the same thing: I bumped the throttle before it was fully warmed up and it died. Nothing I did would re-light it until I finally pulled all 4 plugs and fully cleaned them. I tried 2 of the easy one's first but that wouldn't get it. Pull all 4! After that it started right up. Lesson learned...:face-icon-small-fro

If your not boosted, run LOW octane fuel in it!

BBNytro
12-23-2009, 03:33 PM
Well I don't know about the USA, but in canada all the low octane fuel contains ethanol. I have seen two apex's that fouled the plugs almost instantly once regular(87 octane up to 15% ethanol)was put in them. I wouldn't worry about the minimal power loss and run the better fuel!

lightweightstickers
12-29-2009, 08:32 AM
u prob need to change the spark plugs. mine does this every once in awhile. once my plugs get fouled, it won't start till i change em.

Bigrock33
12-29-2009, 09:16 AM
Battery and plugs Jesse - usually 99% of starting issues w/ Apex

JohnBoyTurbo
12-29-2009, 12:11 PM
Check your valve clearances lately? It may be a long shot but it is a factor in hard starting machines.

sclwald
12-29-2009, 06:17 PM
I can't speak for the Apex but my Vector Mtn SE will not even think about starting with fouled plugs. Change them and it will turn right over.