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 Athena "80cc engine" on a 2001 zuma 
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Scooterologist

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Post Athena "80cc engine" on a 2001 zuma
I'm attempting to come up with the rest of the funds to purchase a 2001 Zuma that shows 800 something miles on the odometer (0830 or whatever it is.. no possibility of it being either 8000 or 28000.. unless the odometer was disconnected at some point and the scooter ran for years)

but anyway, the current owner says it has an 80cc engine, and on the side of the cylinder i can see Athena forged into it (letters raised on the bottom), and it has an Athena expansion chamber exhaust. Claimed top speed of 65, i've personally seen about 45-50mph on the test ride (stock speedo only has numbers up to 40, and about 45-50ish is where the needle touches the bottom of the speedo area, which is where i let out of it a bit)


Anyway, my BIGGEST curiosity is if anyone knows if these Athena engines are durable and it'll be around and running for a while or if they're made with top performance in mind and sacrifice durability/longevity to achieve such (if you comment on only one thing from this post, this is the one thing to comment on.)

Also i'm curious... because i only see mention of Athena 70cc while looking around on the internet.. Has it always been 70cc and this one is stroked a little so it's 80cc? Or if it's possible to bore the 70cc that's another possible way it may have got to 80cc? Or at some point was there actually an 80cc Athena kit?

Also looking around on Athena's website i saw cranks and such.. would there be any easy way to tell if the people that put this engine together had did the bottom end with the 70/80cc from athena or if they stuck with the stock bottom end?

And if i get lucky enough to get the rest of the money to get this scooter, i'll have to figure out what carb is on it, what jet, what roller weights etc... This scoot certanly seems to be in some need of tuning. It'll blast to 20MPH, then acceleration really drops off from 20-30, then kind of crawls from 30-40mph. As hard as it pulls to 20 i would think it shouldn't have that much trouble getting from 20-30 and 30-40... one thing i thought about after i got back home was doing a rolling accelleration test from ~2mph (before the transmission releases for a full stop) up to 20mph or so to see if it had the same insane pulling ability with the clutch fully engaged (rather than the clutch engaging while taking off from a dead stop). Since i didn't think to check acceleration with the clutch already engaged, it's entirely possible this scoot's clawing its way to 20 just during the inital takeoff from 0.

Then again there might actually be enough power in the engine to claw it's way to 20mph whether a slow rolling start (clutch still engaged) or not. I've never ridden a scooter other than my '88 Razz (stock engine, single speed trans, 30mph if it's in a good mood, 23-25 if it's not)


But the number one thing, as i mentioned earlier, is if these Athena engines are built to last or if they just go fast for a short time and die

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1988 Razz 50 - 25 years old and still alive & kickin.
2003 Zuma 50 - stock and 'young' (640 miles when i got it in May 2012)

IF YOU DON'T STAND BEHIND OUR TROOPS, PLEASE, FEEL FREE TO STAND IN FRONT OF THEM!!!


Wed May 02, 2012 3:33 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
well athena did recently start makeing a stroker crank for the horizontal

but chances are that this person is just an idiot and doesnt know what they are talking about

if they didnt put a larger carb on to that scoot the engine wont last long at all

why the prebug 2001 and before run a smaller carb even with the 2002 to 2011 we ahve found that you need a larger carb for the athena kit to live


but as for the life of any kited engine it all depends upon who did the wrenching if they didnt know there head from a hole in the ground (like most dealerships) they wont last at all
if the person had more then a handfull of brain cells then they can be built fairly reliable
and if they realy know what they are doing they will go many many miles without issue the atheana being al and only 1 ring will not last as long as cast iorn bores

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2008 zuma dual headlight mod koso mirrors liquid cooled polini corsa kit leo vince zx stage 6 variator rally kit custom red paintFUEL INJECTEDsoon to be 100cc
2008 stella olive custom ported 177 cc kit dechromed ford tear drop tail light alive and breathing and awaiting cosmtic surgery thanks to an trump cager
1985 elite 150 how long can i leave it stock


Wed May 02, 2012 3:58 pm
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Scooterologist

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Post Re: Athena "80cc engine" on a 2001 zuma
jmkjr72 wrote:
well athena did recently start makeing a stroker crank for the horizontal

2001 zuma: vertical engine

but chances are that this person is just an idiot and doesnt know what they are talking about

was a shop in cali that did the install.. i dont remember the name of the place but guy may have said it. definitely wasn't a dealership though (at least i'd hope someone wouldn't send a scoot to a cali dealer when they could get the same shoddy dealership level work alot closer lol)

if they didnt put a larger carb on to that scoot the engine wont last long at all

seems i need to find out asap exactly what it has for a carb then

why the prebug 2001 and before run a smaller carb even with the 2002 to 2011 we ahve found that you need a larger carb for the athena kit to live


but as for the life of any kited engine it all depends upon who did the wrenching if they didnt know there head from a hole in the ground (like most dealerships) they wont last at all
if the person had more then a handfull of brain cells then they can be built fairly reliable
and if they realy know what they are doing they will go many many miles without issue the atheana being al and only 1 ring will not last as long as cast iorn bores


there's a part in the trans with a year of 2009 stamped on it.. don't know if that's from when Athena was installed or more recent work. Are all athena's single ring aluminum bores or's there a possiblity this Athena is cast iron?

_________________
1988 Razz 50 - 25 years old and still alive & kickin.
2003 Zuma 50 - stock and 'young' (640 miles when i got it in May 2012)

IF YOU DON'T STAND BEHIND OUR TROOPS, PLEASE, FEEL FREE TO STAND IN FRONT OF THEM!!!


Wed May 02, 2012 4:17 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
all athena kits are al kits

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2008 zuma dual headlight mod koso mirrors liquid cooled polini corsa kit leo vince zx stage 6 variator rally kit custom red paintFUEL INJECTEDsoon to be 100cc
2008 stella olive custom ported 177 cc kit dechromed ford tear drop tail light alive and breathing and awaiting cosmtic surgery thanks to an trump cager
1985 elite 150 how long can i leave it stock


Wed May 02, 2012 4:19 pm
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Scooterologist

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Post Re: Athena "80cc engine" on a 2001 zuma
well.. scratch this thread. Guy said he'd hang onto the scoot for some days so i could either come up with the money or let him know i couldn't (while also talking scripture and inviting me to his church)... then turns around and sells it the very next night.

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1988 Razz 50 - 25 years old and still alive & kickin.
2003 Zuma 50 - stock and 'young' (640 miles when i got it in May 2012)

IF YOU DON'T STAND BEHIND OUR TROOPS, PLEASE, FEEL FREE TO STAND IN FRONT OF THEM!!!


Thu May 03, 2012 11:31 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
Money talks...you know the rest. Maybe you can find another one and build it the way you want. That way you don't have any surprises with bad tuning or some hidden headaches.

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Thu May 03, 2012 11:59 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
My dream career is being a TV preacher on commission.


Fri May 04, 2012 11:43 am
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Post Re: Athena "80cc engine" on a 2001 zuma
Waianae_Shane wrote:
Money talks...you know the rest. Maybe you can find another one and build it the way you want. That way you don't have any surprises with bad tuning or some hidden headaches.


yeah.. apparently you cant count on a man's word anymore.. even if they just invited you to their church. lol. Would be nice if we still could. I know i still would honor my word.

And i guess i should have put a deposit on the scooter so there was a financial obligation for him to honor his word of holding onto the scoot. Was a 2001 zuma (vertical engine) with at least an athena 70/80cc cylinder (and i'd think it was done right if it were sent to some shop in california).. plus it was priced at the dealership value excellent condition from KBB.com/motorcycle ($950.. close enough). I won't be able to build that scoot for that amount of money lol (buying a scoot and buying the parts).. and was looking forward to figuring out how to get the CVT working better with that engine and pipe and tuning the carb (including swapping the carb if it was still stock)

but as they say: learn something new everyday.

The hunt for a Zuma continues. Currently looking at several stock zuma's 2002-2005ish (i think those are all horizontal motors?)... are there any drawbacks / negatives to having a bugeyed horizontal engine Zuma? the underseat storage would be nice even if it isn't huge, but i'm needing it to go ~50mph (55 would be nice, but i don't have to get TOO crazy with it for it to do what i need)... i ride 12 miles to go to work, and its between two cities with part of the speed limit hitting 55.. if i could at least go 50 that'd be aLOT better than my current '88 Riva Razz @ 30MPH.

although i kinda think i'd prefer a vertical engine even though it means no underseat storage.... perhaps i'm just partial to vertical motors because my Razz is a vertical (and i've heard the guys that work at the dealership like the vertical better.. just don't know why.)

=====================================================================================================

Rather than starting a new thread to ask this and cluttering up the forum with what seems to be becoming conversational threads since the '01 zuma fell through, i'll just ask this in the thread here:

Say i get a 2003-2005 Zuma in stock form... about how much would it cost to get it going 50-55 MPH? Cost is a major consideration, but i've read on the forum here "cheap, fast, reliable - can only have two.. not all three" (not an exact quote, but that's the gist). I do need to go at least 50.. 55-60 potential could be nice, but not if it's going to break the bank to be able to get fast and reliable.

Since i'm totally new to this lol.. anyone know if Minarelli (sp?) does aftermarket performance engine stuff like athena? (except hopefully cast iron, multiple pistion rings... you know, built to last.. like the engine in my razz).. least i think the razz has a minarelli (sp?).. whatever it is its a good engine. I got the razz with 2000 or 3000 on the odometer (only 4 digits on that odo, so could have been 03000 or 23000) and i've personally put 3000-4000 miles on it myself with no major problems

Or perhaps a polini 70/80cc with it's iron cylinder and two rings? I don't have to go 75mph.. just 50 (and actually be able to hit it), or perhaps 55-60 top speed so i can reliably hit 50 on those 55mph stretches. This will be my only vehicle (aside from the Razz i'll probably keep... which is currently my only vehicle.) so it will be driven 24 miles a day anyday i go to work (currently 2 days per week, and hopefully getting up to 3-5 days a week for more $)... it'll be a commuter scooter so it has to be reliable and durable. right now i'm doing about 3000 miles a year and if i get to where i'm going to work 5 days a week it'll be about 6000-7000 miles a year.

Also.. does anyone happen to know if a 24 pack "cube" of pepsi will fit in the floor of a 2003-2005 zuma? (12 ounce cans in a 4x3 rectangle on the bottom and another 12 cans on top) yeah.. i do everything on my scooter, including grocery shopping. Hence the need for a bit more speed with reliability and durability.

_________________
1988 Razz 50 - 25 years old and still alive & kickin.
2003 Zuma 50 - stock and 'young' (640 miles when i got it in May 2012)

IF YOU DON'T STAND BEHIND OUR TROOPS, PLEASE, FEEL FREE TO STAND IN FRONT OF THEM!!!


Fri May 04, 2012 1:56 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
yeah only takes a dollar to seal a deal, but it can't be on a maybe - I'll have the money maybe. i won't seal the deal on that.

If he'd took a deposit, that would be the only difference. And I don't do deposit as sealing a deal. For me, I only do options to buy - buys you the option for 30 days. You don't exercise your option to buy in 30 days, you lose your option - and you lose the money that bought you that option. you exercise it, the money option is consideration toward the purchase price. I'm not going to let someone tie up a sale or do layaway plans.

It's business, not religion.


Fri May 04, 2012 4:10 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
I don't want to be a weenie. Most people take a look around at what is working for others. Put together something that they think is going to work for them too - and tentatively have a build in mind. Then see what everyone thinks. If its good you'll know it, if its bad they won't forget it - but you'll get in the right direction and have fun doing it. lol.

But since you ask. 02 and up is horizonal motor zuma. spmotostore, yes thats one place you can buy stuff. Have a $1,000 dollor over the purchase to work with for your parts you want, whatever 50 -55 mph. Mileage, well can be almost meaningless if its been kept maintained or upgraded.

I like the vertical zumas. It's like wrapped 2 packs of graham crackers. I liked them better when there use to be 3 in the pack.


Fri May 04, 2012 5:02 pm
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Post Re: Athena "80cc engine" on a 2001 zuma
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