85-86? Polaris 250

mr east · #1 (**permalink**) 05-23-2007, 09:34 PM

First off the atv was givin to me so i cant complain. I was ridin one day and somebody was talkin to me. Well i couldnt hear them so i cut the four wheeler off. when i went to start it, it wouldnt. Hasnt ran yet. Its getting fire and fuel, compression is good. But nothing still. Could the coil not be producing a strong enough spark? thanx for any help

rweiss17 · #2 (**permalink**) 05-24-2007, 06:58 PM

<div class='quotetop'>QUOTE (mr east @ May 23 2007, 05:34 PM) <{POST_SNAPBACK}></div>

Quote:

First off the atv was givin to me so i cant complain. I was ridin one day and somebody was talkin to me. Well i couldnt hear them so i cut the four wheeler off. when i went to start it, it wouldnt. Hasnt ran yet. Its getting fire and fuel, compression is good. But nothing still. Could the coil not be producing a strong enough spark? thanx for any help[/b]

Check all of your wires to the switches old bike one might of broke off. I have a 86 Trail Boss 250 as well.

rpyfz450 · #3 (**permalink**) 05-24-2007, 08:48 PM

A strong spark will appear white and a weak one will appear blue. Does the ATV show any signs that it wants to start?

If you observed a good reading on a compression tester, that's a good sign. The last guy that said his compression was good found out the cylinder was scored up really bad. The finger over the sparkplug hole test isn't very reliable.