Very few runs the P5 here in Europe. Seems like the P5 is much more popular in the US. BTTs are killer engines. Great liniar power and mileage.

I found the Btt to be a great engine. Very smooth, great top end. I just started running a differenent version of Nova Engines so my Btt is reserved for back up duty.

From Novarossi's facebook page:

ABOUT New Off-Road Carburettor

ADAM DRAKE: “The three needle carb (24067) is very nice to be able to fine tune the power band for the best performance.
The feel of the engine with this carb (24066) was better.
It had a richer and more torq...ue feel on bottom and seemed like the mid range was leaner which allowed the engine to spool up quicker and the top end speed was the same.”

BEN PANIC: “I used one of the Novarossi engines during the race and I was really impressed with the speed. The new 3 needle carb also gives an excellent idle which the old carb tended to have issues with.
The sound and consistency is really good now. I would defiantly go with it for 2014 engine lineup.”

No runtime comments? Wth

What size rear bearing does the Keep Off 21-7 have in the rear? Mine needs to be replaced after 2 gallons.

Unfortunately you can only use the novarossi replacement part

its 14.5x26mm but like I said you cant use a standard bearing

Where can I get this bearing?

So I broke the clutch bell screw off inside the crank. I dremmeled a slot in the end of the crank to try and unscrew it. The screw driver caught on the crank and broke it off. Instead of paying $100 + for a new crank would the Ofna 10091 pictured work? It's a plus 4btta.

Ok so I just ordered both of these for $9 shipped. they are HPI a805 and 806. Hopefully it will work. The dimensions of the longer one are:

Total length: 27mm (1.06")
Shaft diameter: 5mm (0.20")
Shaft length: 16mm (0.63")
Inner thread size (crankshaft): 5mm
Inner thread size (clutch bell screw): 3mm

And shorter one:

Total length: 21.4mm (0.845")
Shaft length: 10.7mm (0.42")
Inner thread size (crankshaft): 5mm
Inner thread size (for clutch bell screw): 3mm

You just need to look in the right places for engine parts:
http://www.ebay.com/itm/Novarossi-Pl...item5af8d520ac

I'll watch it and see what it goes for tomorrow night.

I take out broken clutch screws all the time for people. The best way is in a lathe with a left handed drill bit.

Rex

Novarossi BX 21 3T
 

Hi guys

What do you know about this engine, a Nova BX 21 3 ports, please? Have you ever heard of this one?


Thanks a lot :)

Any word on where I can purchase the rear bearing for the Keep Off 7 port.

Rex,

Can I make a collet to do the same with a 3 jaw chuck on a lathe?