Hi

I just made break in for my 1.60 gasser. I didnt fiddle with needles(manual said so) and the temperature was -12 degrees celsius. I runned 500ml of 1:30 fuel with recommended oil(Mobil 2t racing synth). Engine is starting fine, but I cant get it to running with full throttle. It just starts to die out after 1/2-throttle. What are the basic break-in needle settings? I just dont want ruin my engine running too lean so I want to check safe break in needle settings.

Hi there!

To check your settings, screw both needles in untill they are seated and back them out 2 full turns. This will ensure that you are rich enough for easy starts, and you will be rich enough on the top end that you will have to lean it out a bit for max RPM.

Once you find the correct needle settings for your engine/prop/exhaust combination, you will find that you rarley, if ever, need to adjust it. Lovley engine!

Wow! it's still cold in Oulu.
[link=http://www.prme.nl/forum/viewtopic.php?t=10]Look here for walbro settings[/link], after you have done as David suggested.

Yes it's damn cold and I will wait for warmer weather before next session with the engine It's just so interesting to see new engine running for the first time. Learning to master the engine is another case indeed and takes some time.

Thx for the help guys.