for giggles today i was bored so i thought i would shorten the low speed needle on my engine and yes i like it so much more than the longer needle seems to tune a little bit easier :)

will have to do my other carby now :):)

thanks for the reply grizz1... will place an order for the stage 5 5 port as soon as i can ...

The modded 5 is a good choice. I like mine alot, very powerful all the way through the band. I am finishing the break in on my new modded 3 this week and will let you guys know my thoughts on that. 1 thing I will say is that the 3 is much easier to break in, my starter box isnt mad at me with this 1 lol.

I agree, I just got the sport 3 port and put a 5 port cooling head, race carb and turbo head button on it and it was much easier on the first few starts then my 7 port was...

Well ive had my 3 port r for about a month now and has ran awsome never flamed killer power in my 1.0 buggy

So I just got a used EBmods full Mod 5 port for my 2.0 truggy and this thing runs awsome cant wait to race it TONS of power. All I know is its going to take an engine sponsor to keep me from running these engines:D

What would you guys suggest to keep these motors running for a long time the EB mods is almost at the 2 gallon mark and just got a brand new front bearing and the 3pt r is at about 1.5 gallons on it since a new piston sleeve rod and had the bearings replaced about 2.5 gallons ago.

Thanks

Just change the rod pin and clips after 2-3 gals from new, check bearings if bad put new TKO's or stockers what ever you want. I have front and rear TKO's in my 5 port now and they are awesome. My mill never flames either the 1st time was last sat I was running like 7 or 8 mins BS-ing before the main and go in for a top off and it flamed I was in shock. So I had to do the run and get running again like I have seen many others always do LOL. I attribute that to probably it being the same plug from the beginning of the season maybe I should put another in. I leave my box at my pit table thats how much I flame. But after the break in change of rod ect every 3-4 gals again do it again.

can some one tell me what the factory(break-in) carb settings are for a GO 21 3port and a Go 28?

Yep - the new Gen 5.5 motors have had the pinch relieved a little in manufacture to make it a bit easier on you and your starter boxes :D :nod:
The older Gen 5 and 4 motors were super tight for sure.

Not 100% sure on the .28, but the 3 Port (if it's a recent model) should be good at both needles flush (factory settings).
Try HSN .5 in from flush and LSN 1.5 in from flush on the .28. This should get it running reasonable I would think.

these are older models, not sure how old, but def early ones, both are the sport versions, had long needles, but i cut them down... B21, silver block, A28 silver block

Ah, ok - If you cut the needles down then they should both be pretty similar.
With the short needle go for 1.5 in on the HSN and 2 - 2.5 in on the LSN. This should get you running for sure, then fine tune from there.

JFAB you got PM

Thanks! I'll try it there

Do the new gen5.5 carbs with the long LSD needle tune any different to the earlier gen?I shortened the needle on my 7port,runs great,but always felt like I was cheating:rolleyes:I want to tune this 5 port the way the factory built it :nod:

thats the ball park to get running good if your having troubles with running chech the orings on the carby mine werent old but the ones that come with the carbies are not good they break up and get hard quiet fast i replaced mine the old ones were about 3lt old and they were breaking up