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-   -   What's wrong with this picture (https://atvconnection.com/forums/polaris/368435-whats-wrong-picture.html)

Yamahemi Jul 6, 2016 08:41 PM

What's wrong with this picture
 
1 Attachment(s)
So two weeks ago I was out for a ride..

Let my nephew take the 500 for a burn and comes walking. Back says it just died

NO SPARK

so after checking the wires I discovered the pulse coil is nfg,

AB bolt had come loose and come around and taken out the pulse coil..

So replaces that turn key fires idles like shSpam wordSpam word Spam wordSpam word Spam wordSpam word Spam wordSpam word dies... hmm try again same thing..

Well after a few more attempts it just cranks and occasionally backfires.. plugs wet

We'll today I go to check my gapping and such good string spark double checked the timing and discovered this..

No Mater what I do nothing lines up

Cylinder is TDC cam is on point but the "T" is like 70 degrees out :confused:

1ArmBandit Jul 6, 2016 09:59 PM

sheer the key on the flywheel

Yamahemi Jul 6, 2016 11:33 PM

Nope triple checked that

1ArmBandit Jul 7, 2016 12:30 AM

sure you are at tdc? when you take the flywheel off when you think its tdc, what position is the key in?

Yamahemi Jul 7, 2016 12:41 AM

Pretty sure I stuck a 3/8 extension down the pug hole to feel for movement as for the keyway I'm. Not sure. I'll check after work tomorrow

Yamahemi Jul 7, 2016 12:47 AM

What position should it be at

old polaris tech Jul 7, 2016 07:54 AM

Have you removed the flywheel nut to see if the key has broken? Look at these pics from a member with the flywheel off and timing the cam up with the plated links. The flywheel key slot should be at 12 o'clock position.https://atvconnection.com/forums/pol...ml#post3305250

Yamahemi Jul 7, 2016 05:14 PM

Not sure how I missed it but it looks as though the fly wheel key is indeed broken... when you say 12 portion do you mean. To the bike or twelve to the top of the cylinder

Pic for fun

Yamahemi Jul 7, 2016 05:16 PM

1 Attachment(s)
Missed a step posting from my phone

old polaris tech Jul 7, 2016 06:53 PM

Definitely sheared and out of time. Hopefully the tapered shaft is ok. Any good hardware store should have this 5mm woodruff key.


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