Mark I have the Hudy tool. It works perfect on the Nova's. If you want to try it out, let me know.

Have you changed a bearing for a btt? I just need to know if the hudy kit is able to do that motor because I think the btt have diff size bearings

Yep, changed my CRE BTTS with no issue.

Thanks that's all I needed to know :nod: I just bought one

Nice! The 17011 front bearing has a raised inner race, so make sure you place a washer between the bearing and bearing cup to prevent you from smashing the race. Sounds weird, but look at it when you get the tool and it will make sense.

It takes a lil customzing or a machined washer that will only touch the outer race of the 17011 as it has an inner race that protrudes .3mm , seen allloooottt of messed up front 17011 because of this

I'm just going to send it to you lol

:lol:

Thats no prob bro

Just lmk

With the button head, which way does the arrow point? I took it off but didn't pay attention to the orientation.

Also, should there be movement of the flywheel when the piston is right at the top of the sleeve? With the heat sink and back plate off, I noticed a few mm movement left and right when the piston was stuck at the top. The pin on the crank that goes into the bottom of the rod seemed a bit loose.

Tdc is not where to check for rod/crankpin "slop" , thats normal

Towards exhaust but is a circle and will not hurt anything either way

[QUOTE=houston;12021255]Tdc is not where to check for rod/crankpin "slop" , thats normal

OK, thanks. How would you check the slop?

[QUOTE=RCNitro13;12021494]usually at the start of the compression stroke or get all technical and measure crankpin , under 4.92mm bad

what is the best fuel to run in a .21-4C engine? I normally use Byron 30% in my current engine, but noticed novarossi recommends 25%. I was thinking of 25% worlds blend

30% is fine. That all I run on my plus 4 btt. Can't go wrong with Byrons.

Perfect, Thanks!