If you can get your hands on a 2060 i think its the best. It's a little softer on the bottom and gets great mileage. It's a little pricey but if you look around you can find a deal. I found one for $30 at my local track.

A friend of mine runs the AE35 and loves it. It makes great power and is around $35-$40 new.

Hey guys,

Just a question for the guys in the know.

I just purchased a new JX BO1A from Amain and its head has a much darker grey anodising on it than my current BO1A. The only difference is i brought my current one in Australia and it came in a Ninja box, the one from the US came in a Mugen box.

Has there been a change to the head colour?

Not that its a big deal im just interested to know why.

Cheers

There is a couple brand new ones from the latest batch at my LHS, A buddy bought one yesterday and yes the head is very dark, like a dark charcoal metalic color............ very cool if you ask me...........Cool Update or just a screw up.. Either way I LIKE IT

yep, thats what mine is like. I personally like it more than the lighter colour.

Did your guys newer engines have the extra wrist pin clip included? I just received my new engine two weeks ago and noticed the extra clip wasn't there.

Also how many of you seal the carb and or back plate with these engines? Is it very necessary?

my first one came with the clips, the new one didnt

The new batch of JX .21s dont come with the extra wrist pin clip. And the heads are darker. I like the darker head myself as well.

I wouldn't and have never sealed a brand new motor.......... shouldnt have to,I dont care what anyone says..........with the machines/tolerances used to build these things if it leaks....... somethings majorly wrong........

i 2nd 3rd and 4th this

Sounds good, thanks guys

I did not seal mine either and it runs great. On another note I 2nd using the 2060, I ran a club race tuesday night. I got 10 minutes and had at least 30 seconds left in the tank. That is better than I ever got with my +4 and it is sooo much more drivable.

QUOTE=USP45;6419505]I did not seal mine either and it runs great. On another note I 2nd using the 2060, I ran a club race tuesday night. I got 10 minutes and had at least 30 seconds left in the tank. That is better than I ever got with my +4 and it is sooo much more drivable.[/QUOTE]

Does the JX21 use the speed style rod with the oil hole drilled in it? Thanks.

Yes it does.

On the color of the heads; I have 5 of these and they all looked darker when new; but as the heat and sunlight have gotten to them, they all lighten up. My newest one was dark compared to my older ones; but after a few weeks, now its the same color. I dont know if this is the case for everyone, but mine have lightened over time.