Diggity
70cc twin V2
And you recommend the non-synthetic oil to break in the engine?
I have always used Lawn Boy for break-in
And you recommend the non-synthetic oil to break in the engine?
And you recommend the non-synthetic oil to break in the engine?
I like to run the first gallon with Pennzoil air-cooled 2-stroke oil (natural), then switch to Stihl HP Ultra(synthetic). The lower film strength of the natural oil helps the ring seat quickly. Make sure the needles are reasonable and get a few flights on it with gentle uplines and downlines, letting it heat cycle. After that you can start to push it harder. Re-tune when you switch to synthetic.
However, many people start with synthetic from day one instead of starting with natural oil and DA says you can do either though it will take a bit longer to break in with synthetic...but you don't have to re-tune and you don't have to deal with two filler cans. Despite the arguments you will find in some places, either method can work great.
We should write a wiki article on break-in....
Anyway, to get back on topic, I flew ghoffman's 91 the other weekend and it's a pretty incredible airplane. It's as big as a 100cc plane and even though he had the CG neutral it tracked better than any plane I've ever flown in this size. I'm definitely going to find a new home for my 60 and will wait for the Yak but it's pretty tempting to get one of these...
I like to run the first gallon with Pennzoil air-cooled 2-stroke oil (natural), then switch to Stihl HP Ultra(synthetic). The lower film strength of the natural oil helps the ring seat quickly. Make sure the needles are reasonable and get a few flights on it with gentle uplines and downlines, letting it heat cycle. After that you can start to push it harder. Re-tune when you switch to synthetic.
However, many people start with synthetic from day one instead of starting with natural oil and DA says you can do either though it will take a bit longer to break in with synthetic...but you don't have to re-tune and you don't have to deal with two filler cans. Despite the arguments you will find in some places, either method can work great.
We should write a wiki article on break-in....
Anyway, to get back on topic, I flew ghoffman's 91 the other weekend and it's a pretty incredible airplane. It's as big as a 100cc plane and even though he had the CG neutral it tracked better than any plane I've ever flown in this size. I'm definitely going to find a new home for my 60 and will wait for the Yak but it's pretty tempting to get one of these...