ATHENA 170cc
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Quality is lovely to be fair and when setup properly they go well.
There is a huge loss of over-rev, but the midrange is brilliant. Dies off around 10,000RPM.
Couple this with a pipe and a proper ignition system then you're in for a real treat.
The bore is nikasil plated and the head is independent from the skull cap. So overall it's nice quality.
I had mine ported by Mick Abbey as well.
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I highly recommend the Zeeltronic ignition systems. I own 4 of them. That was the single biggest improvement on my Yamaha IMO.
Yeah, I've grown to like the Athena I must admit. If you go back 10 years, you'll find posts of me not loving it so much. The reason is, my friends all had Aprilia RS125s and they just run rings around the DTRs. The fact is, I wanted something like a YZ or Aprilia in terms of performance.
I've now grown to realise that the DTR was never going to be on par with those bikes, no matter how much I spend. So now it's just about appreciating the DTR for what it is. The Athena is more akin to my type of riding, when I'm on my DTR.
When I'm on my RS, it's all about revving the nuts off of it
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@StanKn I'm not sure about that, I've just been around DTRs for a long time. Probably done every modification under the sun and back again. So I know a little more than average about them. True masters are people like @oldman @scrimsmustang @HOTSHOT-III to name a few.
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Yes it worth's the money ported or stock will give you mid range and the ability to cruise at nice speeds around 5K rpm depending the gearing,if you go the tuning way depending the depth of tuning,you can still have mid range like above but scream at about 13K rpm.
Zeeltronic is excellent as @Calum said.
You can "play" nice with Yamaha's CDI from other models if you want or some unrestricted.
@Calum has done extensive mods the other members mentioned from him have their respected history also,I will add @SpookDog and @Louis-DT-WR. -
Cheers Guys the help is massively appreciated, My Dads is very experienced with composite work so I plan on making mine a one of kind front fairing, and having the engine about as perfect as it can be, I'm glad a joined this forum seems to have all the answers!!
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Stock work fine with me.
I got a nice improvement in mid and (especially) low rev range torque. I never get tired of cruising along at just over 5K~RPM doing 60mph nice and lazily…
I’m sure a bigger carb would be a boon, but myself I hardly ever go over half~3/4 throttle, so it’d be wasted on me
I kinda think if you love WOT revving the nuts off of it, it’d be better sticking with the 3MB barrel… -
My mate used to ride his Athena everywhere pinned.
https://www.youtube.com/shorts/bOGAEzTaBgI
Was very reliable.
