surferfratt
Scoot Junior
NorCal surfer w/2 as yet running Kymco People 50's
Posts: 16
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Post by surferfratt on Apr 30, 2020 19:45:20 GMT -5
 Just picked these up for free this week. 2004 and 2005 I believe. I'm fairly new to scooters, other than riding a Garelli moped some 35 years ago! Not sure how long they've been sitting, good cosmetic shape but not running. Messed with one and got it to spark but wouldn't fire. Has spark and fuel but checked compression and only like 75 psi, pulled head and looks like ring gaps are out of spec so guessing I need to rebuild the top end and hopefully that does it otherwise these "free" scooters are gonna start costing too much.  Any thoughts on whether to get a big bore kit or stick with stock? Figured I'd consider it since I'm doing the top end anyway. Thanks and great to find this site! |
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Post by Zino on Apr 30, 2020 20:07:24 GMT -5
Welcome to the forums
75 psi wont work
A bbk kit and a stock rebuild are basically the same price .
a sport big block cast iron is very reliable and a major upgrade for power .
As you go along keep asking questions and posting pictures .
We will help you along.
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surferfratt
Scoot Junior
NorCal surfer w/2 as yet running Kymco People 50's
Posts: 16
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Post by surferfratt on Apr 30, 2020 20:22:25 GMT -5
Thanks Zino. So I found a stock rebuild kit on eBay for $68 (https://www.ebay.com/itm/fits-Kymco-People-50cc-2-stroke-engine-50cc-cylinder-rebuild-kit/233089583639?hash=item364538ca17:g:TOEAAOSwM91aaZVf). And a 70cc kit for $149 (https://www.ebay.com/itm/70cc-performance-cylinder-kit-for-Kymco-People-50-2T-AC-2-stroke-50cc/332977087302?_trkparms=aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D20131003132420%26meid%3D57b671d08c814c938789b7d16d9ae6d7%26pid%3D100005%26rk%3D3%26rkt%3D10%26mehot%3Dpf%26sd%3D233089583639%26itm%3D332977087302%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWeb%26brand%3DMotoritec&_trksid=p2047675.c100005.m1851) And this place has a Malossi kit for $235! www.rollingwrenchdenver.com/collections/kymco-peiople-50/products/kymco-people-49cc-50cc-to-70cc-big-bore-cylinder-kitThoughts on route to take. Not looking to spend big $$ on these things. Thanks! |
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Post by Zino on Apr 30, 2020 20:45:30 GMT -5
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Post by Zino on Apr 30, 2020 20:57:49 GMT -5
Malossi or Polini would be my first choice
They are Both Top quality Italian made .
I have put a airsal cylinder on they are ok
Others on here have used the naraku cylinders with good results .
I also would take a look at your carb and see what the main jet is and carb type and take a look at the belt and rollers in your transmission.
That way you know what else you may have to order
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surferfratt
Scoot Junior
NorCal surfer w/2 as yet running Kymco People 50's
Posts: 16
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Post by surferfratt on Apr 30, 2020 21:49:10 GMT -5
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Post by tortoise2 on Apr 30, 2020 22:05:49 GMT -5
picked up 2 free Kymco People 50's Backstory? Looks like California will require an endorsement to operate these? |
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surferfratt
Scoot Junior
NorCal surfer w/2 as yet running Kymco People 50's
Posts: 16
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Post by surferfratt on Apr 30, 2020 22:49:50 GMT -5
picked up 2 free Kymco People 50's Backstory? Looks like California will require an endorsement to operate these? Someone was clearing out their garage/barn and had these sitting around for a few years. I got them for nothing so figured what do I have to lose. And not sure if an endorsement is required but I have a motorcycle endorsement. I rode motorcycles for years but never really worked on scooters. |
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Post by jbjhillbilly on May 2, 2020 19:02:56 GMT -5
You need a motorcycle license to ride them here in CA (they aren’t classified as mopeds).
They are great little bikes, and the engines tend to be robust. I’m almost surprised that they need a rebuild.
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Post by aeroxbud on May 2, 2020 20:10:47 GMT -5
39mm is the standard bore. And 48.9cc is the bore times the stroke. |
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surferfratt
Scoot Junior
NorCal surfer w/2 as yet running Kymco People 50's
Posts: 16
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Post by surferfratt on May 2, 2020 22:02:03 GMT -5
You need a motorcycle license to ride them here in CA (they aren’t classified as mopeds). They are great little bikes, and the engines tend to be robust. I’m almost surprised that they need a rebuild. Thanks jbj and I'm good on the motorcycle license. And yeah I don't know that they need rebuilding, but I had spark and fuel and could only find low compression as an issue and the ring gaps were out of spec. So I'm just going to put in piston and rings and see how that goes. Plus I broke a ring taking it apart. Hopefully this is all it needs. Cheers. |
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Post by kyledude on May 21, 2020 14:39:37 GMT -5
Let me know if you want to get rid of those or want to go riding I'm in the norcal area as well. recently just purchased a Zuma 
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Post by wiscootsin on May 21, 2020 22:30:22 GMT -5
get new carbs.
I got two not free but cheap kymco 4t scooters in December and rebuilt them. Tried to not spend money, and of course 6 months later I'm still having problems with cold starts, etc. because there's probably some crud in the carb even after boiling it multiple times.
but the 2t carbs seem a little easier to get clean enough.
Just saying, I regret the time I wasted cleaning and troubleshooting carbs when I could have purchased a new one for not very much money.
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Post by wiscootsin on May 21, 2020 22:33:08 GMT -5
Also, maybe you've done this all before and it's nothing new, but i'd also suggest completely tearing down, removing the fuel tank, and cleaning it out. I've had to deal with bad fuel and water in fuel tank issues even after cleaning/flushing as much as possible while on the scoot. That just meant more wasted time because I should have fully cleared the tank before trying more stuff.
I've "rescued" 9 scooters in the last year so...just trying to be helpful.
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Post by pinkscoot on May 22, 2020 8:04:43 GMT -5
What Wiscootsin said. When I get anything that has sat I break it all down looking for nests and vermin, pull the tank, take everything off and inspect then wash it out blow it out and let it drain for a day or so, then blow it out again. Always easier with a plastic tank. While its drying I go about inspecting and cleaning everything. Doing that makes working on it a cleaner job and with new hoses you know your fuel system is clean.
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