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Post by endru on May 10, 2013 21:57:16 GMT -5
I finally scraped together the funds to do some major upgrades to my Puma Amor 50cc, and I'd like to run them by you guys just to make sure I'm not missing something critical or wasting my money. I've done all kinds of minor things so far: valve adjustments, upjet, 1,500 rpm torque and clutch springs, iridium spark plug, pod filter, sliders tuned to my liking and orange coil. Here's what I'm planning to purchase: - 50mm BBK from Scrappydog's ebay store. 52mm would have been great but it's out of my price range. - # and # jets. Should I get one in between as well? I'm having trouble finding them, where's the best place to order those sizes? - Final gears: 16/50 from Scrappy's ebay store. Need a few more MPH top end. I'm still running a stock exhaust, which I know will restrict me some, but even ebay perf. exhausts cost more than the BBK. Might drill some holes in the exhaust to compensate. Sometime later I'll get that and also look into getting a better head, carb, intake manifold, variator, A9 cam and maybe even a stroker crankshaft. Are all my ducks in a row?
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Post by devo344a on May 10, 2013 22:19:28 GMT -5
Look at this parts place chinesepartswholesale.com at the top of the page everyday they have specials there are 3 everyday.
they have mufflers quite often and real cheap only draw back is sometimes they are slow shipping like 5to8 days most of the time there shipping prices are cheap hope this helps you if not PM me and I will tell you a way to use what you have
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Post by larry001964 on May 11, 2013 5:19:40 GMT -5
Hi Endru, The stroker can be quite a handful, personally I don't recommend it with the 52 mm anyway. Makes starting too hard, and componets like the variator and drive belt don't hold up well with the power or heat it produces. I suggest you read the threads on Hanks scoot "Spector" or "Red Streak" and my build both are on the old scootdawg site i believe. Good luck hope this helps.
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Post by endru on May 11, 2013 14:26:59 GMT -5
Thanks for the feedback. Devo I'll send you a PM, I think for now I'm going to have to use the exhaust that I have. Larry I remember reading about Hank's builds on the old site, I'll have to check back on it again if I decide to pursue a stroker crankshaft.
Thanks again!
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Post by hank on May 11, 2013 15:41:58 GMT -5
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Post by ej132 on May 11, 2013 20:54:15 GMT -5
I am waiting on parts coming in now for my bbk. If I were you I would wait to do the gears and instead do the a9 cam now while you already will have the engine apart. Good luck!
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Post by endru on May 12, 2013 8:56:10 GMT -5
OP You have a good scoot there My Puma Was topnotch Yours Hank Thanks Hank, I saw those videos back on the old site back when I first got my scoot. Didn't yours get stolen or something? I really like my Puma. I wish it were styled more like the Angel, but I got a great deal on it and it's been really good to me. I like "Spectre" too. Maybe some day I'll be able have a list of mods like that on my Puma ;D I am waiting on parts coming in now for my bbk. If I were you I would wait to do the gears and instead do the a9 cam now while you already will have the engine apart. Good luck! That's a really interesting suggestion, I had forgotten that the a9 cam can improve top speed too, and that's what I'm looking for. I do subscribe to the 1 modification at a time principle though (easier to diagnose if something goes wrong), so I wouldn't be doing the kit and cam at the same time. I think I'll make the cam my very next step after the kit and gears.
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Post by larry001964 on May 12, 2013 18:28:05 GMT -5
That's a really interesting suggestion, I had forgotten that the a9 cam can improve top speed too, and that's what I'm looking for. I do subscribe to the 1 modification at a time principle though (easier to diagnose if something goes wrong), so I wouldn't be doing the kit and cam at the same time. I think I'll make the cam my very next step after the kit and gears. It's been my experience that the cam also provides more low end torque, something that will be needed with taller gears, quite a few that go with a 50mm kit seldom do much with the gearing, most of the time the new bbk provides more torque to take advantage of the stock gearing. I'm thinking this should push you to 45 without redlining if your variator is set up correctly.. After 45 every MPH gained gets more and more expensive..
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