Recent content by jurchybald

It's fine in the cut. Out of cut and idle is like it's running out of fuel all the time. Something that bothers me personally.

Other than that it has a torq of 500i and shape of 261. People here love it

Been living with 400.1 for months now. All I can say is I hate it. It runs so fuggin lean I don't know when it's running out of fuel. Stock or ported. So this week I drilled every hole on carb I ever heard people drill. Tomorrow I'm buying new carb. Can't wait for 564xp.

Flat top

I ported one, have two more to do. I did cut the base and than use JB weld to reconstruct that extension back. Went couple of times in and out. Didn't find any real gains to be honest. it seems it does like higher exhaust. Second one I will try only BGD and squish cut to see if it's worth all...

Here you go

Transfer entrance is way down in the case. Cilinder entrance is just part of a tunnel. That extension on cylinder has to stay there imo

Look at my photo again and imagine how you would cut the base on a lathe. Than add asimetric chamber design and imagine cutting squish by hand like I do. It has nothing in common with old 400 believe me

It's a PITA saw to work on. You can see everything from this one pic

Yes here in eu stock exhaust port is at 103 and once I drop the cylinder it's at 106. If I leave it like that 400 becomes one bad mf**er

I don't like how every c-m saw has this L jet starvation. Especially ported. That's better on 500i. Plus insane throttle respond

261i than 400i and I'm good

I drilled the nozzle and it did improve my problem a little but not all the way. It did help with power. Saw is even stronger now. But that delayed rpm drop is so annoying I'm considering selling the saw. I have few regular carbed and love them. Any idea how to trick mtronic?

Uff that's small. I'll give it a try