Break In Only 25/miles on break in.......Mix 25:1 on 48cc slant head

[geebt48cc]

After the first tank.....................

I was out on bike today, and I'm running about 25-30 mph with 48cc skyhawk. The muffler is solid from top to bottom. Uno, I was thinking about drilling a hole or two to help let it breathe alittle?! So, any advice?

The only thing I've done from stock is drll a few holes in the back of the air cover.

Thanks................

 

[GearNut]

A few holes in the back of the air cleaner? The carburetor side?
That will let more air in, at the expense of by-passing the filter element. Dust and dirt do horrible things to the inside of an engine!

 

[geebt48cc]

...............Hey there, No, I drilled a few holes only on the outside (with filter between) in air cleaner plastic cover. I'm going to get one of the K&N filters from SBP.

 

[GearNut]

Ooohh kaayyy! I was a bit concerned there for a minute!
The snorkle holes actually flow plenty. The SBP unit will flow alot better!

 

[geebt48cc]

Mmmm, Power, or not as much?

The 48cc Skyhawk is doing well, but it only will run right with choke half- on......Sometimes, when pulling a slight grade I have to either lean it out, or give it a little more choke.....(This is all after it's warm uno????)..?????

I vary speeds, mix is 25/1 Engine has now about 30 miles on it......

 

[professor]

Look for a vacuum leak or restricted flow to the carb first.

 

[geebt48cc]

Ratio mix.....................

:-/Uno I'm pleased with the 49cc 2/stroke so far. Only about two tanks have been used at 25/1.............Ok, I'm ready for new mix.............What do you think ratio should be for third tank?

PS-idles great with zero smoke...............Is that good or bad?

 

[srdavo]

IMO..... stay with the 25:1 for a few more tanks.