[agilbert]

This is my first 4stroke engine. what % of nitro should i use for best performance. also whats the best plug.

Thanks

[scaleguy]

Originally Posted by agilbert

This is my first 4stroke engine. what % of nitro should i use for best performance. also whats the best plug.

Thanks

5% or 10% but no higher. These engines are designed to run on FAI 0% nitro and anything higher then 10% will cause pre-detonation in the mid-range.

I had two of these and it's big brother the Enya 155R before Iswitched to gas.

Use genuine Enya plugs they work the best. You will have to use the supplied remote glow plug cable as you will be hard pressed to find a glow igniter that would fit over the large plug head never mind the fact that you will loose some fingers if you try and remove a igniter while this puppy is running.

These need to be chocked to draw some fule in. To activate the choke just pull out on the throttle lever. You should have gotten, gooder english EH?, , metric allen head bolt withthe engine that will thread into the throttle barrel.

These are good strong engine. They do take a while to break in but will last forever.

Make sure you double safety nut on the prop and use a chicken stick to start. Lots of compression and if she backfires she can wack you prety bad. If you insist on hand flipping get a nice thick leather welders glove for your flipping hand.

You are gona want a 14 x 6 prop to start if I remember correctcly but consult the manual.

[Sport Flyer]

I've used 10 and 15% Omega 4 stroke fuel with very good results. I have the Enya 90 4C, 120R and 155R. Enya #4 or OS type f works fine too. If you're using 10 and 15%, you want a medium plug.