Oil on spark plugs - Inverted 503

Re: Oil on spark plugs - Inverted 503

by Nick Axworthy » 14 years ago

Nick Axworthy

16 325 0

At 25hrs my plugs still look like new....I clean mine and get a good 50hrs + before I replace,

But I stand to be corrected if what I am doing is wrong.

Nick.

Re: Oil on spark plugs - Inverted 503

by Harvey Parent » 14 years ago

Harvey Parent

1 8 0

Thanks all for your posts. I will see how the new set of plugs do over the next few flight hours. hp

Re: Oil on spark plugs - Inverted 503

by Diego Sagrera » 14 years ago

Diego Sagrera

0 6 0

I used to have a challenger with the inverted 503 and I usually fly it almost every weekend, did not have that problem but when I left it siting in the hanger for a wile the same problem with the spark plugs, what I did is change the plugs every 20 hours and I used the B8EV plugs instead of the B8ES. Hope my experience helps you.
Fly Safe

Re: Oil on spark plugs - Inverted 503

by Joe Harrington » 14 years ago

Joe Harrington

1 26 0

I flew an inverted 503 for 600 hours and now an inverted 582 for more than 400 hours. My plugs almost always last for more than 75 hours once I figured out the jetting/prop setting. I have never had a spark plug problem in flight in 23 years of flying Rotax 2 strokes. When the spark plugs a getting near the end of their life, i notice is does not want to start quite as easy.
Regards,
Joe Harrington