redesigned bearing , they switched bearing suppliers


the nylon cage that holds the balls is VERY important , DO NOT MESS WITH IT

the pre-run from novarossi is very very close to race ready actually , very good forming of the piston/sleeve fit actually , worth the $$$ IMO

Hi can anyone help me identify which carb I have on a 4btt which I am breaking in after having a new piston and sleeve installed ( not by me ). I heard that there are a couple of different carbs that it may be. One is harder to tune than another. I am having some problems trying to tune it ( could be me too as I am new to tuning ), but I did notice that the low speed seems to be in excessively compared to another engine I have. It is in at least 1.5mm from flush and still seems rich? I cannot get a good idle and has started stalling a lot. This is after I followed the second break in procedure. I believe I have the idle gap correct as well.

ty all is well

Hi guys,

Care to recommend pipe and manifold combo for Novarossi S21P5XLT .21 5 Port Off Road Buggy Engine With Turbo Plug?

One for small track and one for large track?

Having a hard time keeping my Bonito idling when fliped over/crashed. Yeah I know I'm not suppose to crash but Im not Maifield lol. It doesnt do it everytime but does it too often to where its killing me during races. Installed a new tank and that didnt correct the issue. I'm not the best tuner in the world but I've had it tuned by a few diferent good tuners and still does it. I had another one of my buddies take a look at it last night and he said the tune is fine but to raise the idle cuz Novas like to run with the idle raised a little high. I've heard this about OS engines but never Novas. So I said what the heck due to being frustrated and raised the idle a little higher then I typically like but it did seem to solve the issue. It has probably 3 gals or so on it and the compression is still decent. It just recently started doing this so idk what the deal is. I run the AE 8.2 so the tank doesnt have a clunk but I run an inline filter which I was told a while back that helps when running a non clunk tank. If any one could chime in and offer any advice or suggestions I'd much appreciate it.

If the engine stalls on idle or stalls upside down, it's almost always because it is getting too much fuel, it's too rich, so it loads up and stalls.

If it stalls on idle it is the low speed needle.
If it stalls upside down it could be the high speed needle most likely, but could also be the low speed needle.

Either way what you need to do is run the car about to heat up the engine, then pit and physically turn the car upside down to check for stalling, tune a bit the carb, then flip it again etc.

Thanks for the info. Keep the suggestions coming folks. the more the marrier

+1...I had the same issue, same engine, and about the same time (3-4 gallons) Its very finiky! And likely a couple hours rich on the bottom. When your idle gap is to open and then your LSN is rich, it will sometimes give a false feeling and sound of a "In-Tune" engine to those of us less experianced. Hope you get it worked out...

I would recommend the 2096 with the 21 header for the larger track, but on a P5 it would probably be the best bet for all around. if you wanted a little more low end grunt you could get the 20 header. Cheaper then buying 2 pipes. I'm running the 2096/21 combo on my plus 4 on a medium to small track and I have plenty of low end grunt to get over all the jumps. In fact coming of a tight corner we a have a good sized (approx 25 foot) double tabletop section that I can consistently flat land past the 2nd tabletop.
THe P5 has plenty of low end grunt. Like a said, start with the 2096/21 and go from there. Also run times of the 2096 are very nice.

Check your front bearing.

Ill do the nitro spray test. Thanks for the suggestion

ive been flaming at the pits after a fuel stop in my last 2 outings. i leaned out the bottom last time and it didnt help. ive read that lengthening the pressure line may help, so i got a gas pressure line cooler and routed it back and underneath the air filter on a losi 8ight 2.0. if that doesn't work, im going to replace the fuel tank.

during my fuel stop last time i made sure to not blip the throttle while the tank is being refueled, and to clear it as much as i can right before he opens the tank.

does anyone have any other suggestions?

Blip the throttle right after he closes the tank before he puts the car down.

At three gallons it's probably low on compression. I highly doubt it's the front bearing. I ran into similar issues with other 7 port novas, never found a solution.