First time posting hoping someone can help.I have an 07 grizzly 700 bone stock 700miles on it.I have read allot about pod mods and tps set at 17 and rpm at 1600 mines all good AFuel is set at factory 0.So with that being said I am experiancing fouled black plugs dealer told me everytime I start this quad i cannot shut it off till it has warmed completely up.He said yamaha did not put an O2 sensor on these quads till 2016 so it runs off engine temp so if i shut it off b4 the quad warms up it does not have time to burn excess fuel off plug and it will faul it out.Is there a fix for this it runs fine other then when it fouls plug then it will pop and not start rite but thats to be expected when plug is fouled.