[Wildoneallout]

I have a trx 300,the oil was changed and oil filter was put in backwards.was rode about 2 miles and top end of motor started making a tapping sound.it still starts right up no problem idles has power.any ideas what the tapping sound is?filter has been put in correctly and the tapping isn't as loud.help is appreciated.thank you

 

[retro]

Camshaft & rockers probably... when you pull the cover off you'll see... good news is it isn't hard to fix if the damage was limited to the valvetrain.