grizz1,

Thanks for giving such a valuable info, will report later how I got right my 5port, but tell me seriously-how you get HSN flush....

The point is, flush can be little left and little right...at least half turn, do you put something flat on top?

Sorry dumb, but honest question

Yes you can if you need to set something over the needle to make sure its flush why not.

Thanks grizz, I'll be out later on today to try again.

So watch out all Nova dealers, here's a guy who's going to buy all your rods

Having the same dieing issue with my 21 5 port, have about 4 tanks through it and have not got even 1 minute without dieing. Factory plug went weak, not burnt out so I put a 97T plug in and its running, but I think this carb is so touchy, it is gonna be a pain to get tuned. Have tried to follow the settings list on 453 and I'm getting there I think, but dang! Very frustrating. I actually have one of the Econo Nova's (Novarossi N21BF Limited Edition .21 )on the way, because I'm not sure I can trust this thing. Sounds real heathy when its running, but so far, cant keep it this way. Wish one of you Go Guru's lived in the KC area!!

For the guys having tuning issues, there are "traditional" needles made for the GO carbs. I belive 22racer files the stock LSN down on them too. See other brands of carbs you can go in larger incraments to tune them, GO's just need very small 1/2 hour turns to make a difference. It can be frustrating at 1st but when you get it right you wont have to touch it again. And if you do its due to weather, or moisture thats it. I went I belive 2 1/2 months last year without touching my carb. It was summer and hot. Just be patient. For the guy who got the Nova Limited if all fails and you cant get the GO carb tuned put the Nova carb on there thats the best part of that mill, and I am not sure wether you have the 3 5 or 7 port but all 3 race .21 Go mills will out perform that Nova. I am not knocking Nova at all they are awesome. And i hear our Go's are based off nova patents. That is a great little mill for $150 street price. The nova guys i know use them for buggy, on small tracks and the guys with deep pockets use them for practice. A little under powered for truggy unless modded.

Thats one of the things I'm finding is the 1/2 hour increment thing. I'm not gonna give up yet, but its frustrating for someone with limited tuning skills like myself. I've been used to easy tune LRP spec 3, losi 427, and even the RB TM 728 and GO 3 port were easier than this one is. The Nova I couldnt pass up 150.00 plus 25.00 discount and free shipping! 124.99 for a Nova, OK I'll bite! I fully expect the Go to be faster, maybe just needed to vent.

I would switch to the os-p3 or 4 plug. with the p3 it is easier to tune when new. this same thing happened to me this morning when I was breaking in my 7-port. what I did was to remove air cleaner set my needles at hsn 1/2 in from flush and lsn 1-1/2 from flush then set idle at 1mm. then I turned on transmitter to make sure it was opening and closing correctly and everything was set right. then rechecked idle gap.put air filter back on went out after heating engine up too 190 fired it up went from idle to 1/4 throttle for entire tank. let cool for about 5 minutes fired it back up got it up to operating temp then when it sounded like it was idling to high lowered in 1/16th increments each time making a pass with it to flush out load up. finally got it just right. I own 3 go -tec's and by reading this forum and the info on massive mods web site I have no problems with the carbs. I am also using massive mods run in oil. but have read that you can use klotz oil from your local moto store. I do believe they used like 2 drops per tank. These engines are so tight that they need the hot plug to get every thing burnt. And I swear by the run in oil. the 7 port i am breaking in is super tight that it makes a wisp-wisp sound every time you give it gas. I have used the oil in every tank I ran through this engine(7tanks) and the noise is getting fainter.

Stick with it. If you only have 4 tanks through it, you have another 30 to go before it's broken in You are running it super rich, gently in figure of eights - yes ? (prefferably with foil on the head to keep the temps up).
If you have just fired it up and are expecting it to run normally when it's that tight it just won't happen. Bump the idle up so it stays running when you hit the brakes for a few more tanks, and just be patient with the break in.

You don't have to be perfect. You are going to end up somewhere around 1/2 a turn in from flush, but every motor will have a different combination of fuel, pipe, plug, ambient temperature etc. So it's not a perfect art tuning these little devils. As long as you don't mis-cue and start going too lean on the HSN you will find a good tune pretty easily. Just do it by sight. If you want to be more precise, just scrape your finger nail across the top of the needle. If it catches the lip of the copper tube on the inside - turn it out more. If it drops off the needle onto the copper lip - turn it in some, simple.

It usually wont run long enough to run figure 8's, LOL I get it running, feel good about setting it down, go out the garage and maybe get the 1st 0 of an 8 and will die. It's not as tight with pinch as it was. I can turn the flywheel over by hand now, whereas when it was band new- no way! had to use a heat gun to get it to turn on the starter box. Now it will crank by itself, so ......anyways, its a challenge continues....

It was 3 gallons old, I bought a new rod when I got the engine, and since its a GO with the kung fu pinch I should have replaced it.I told myself that to, but I tried to stretch it for one last race.

I did everything I could to ensure its long life (preheating for half its life too)

Don't get me wrong I LOVED the engine. It RIPPED, could hang with or beat anything down the straights, loads of bottom for a 7 port and got 10 minutes a tank and I'll rebuild it to keep as a backup. I just don't mind spending the extra $ now on an engine where I don't really have to worry about that.

Just think they could easily resolve the issue just by easing the pinch on them a little

check and make sure your head is on tight. Do a cross pattern (star) when tightening. there is no way you should be turning that over by hand with only 4 tanks through it.

running engines so much fun but yet very rewarding when its done and your having a fat time at the track

the previous engine i raced with was grp tuned and this motor was very fustrating had no bottem end even tried different pipes and all of a sudden after 2.5 gallons it finally made power .... i was shocked but i just had it for this motor in the end ,was very reliable gave it to my brother in the end