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Post by flavio on Jul 22, 2019 14:26:46 GMT -5
Kris I have that problem right now, I am looking into the starter clutch.
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KrisW
Scoot Junior
Retired
Posts: 9
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Post by KrisW on Jul 23, 2019 6:38:18 GMT -5
Starter clutch works just fine with mine. It will disengage properly if the engine actually manages to start going. The thing is it died in a strange manner, tried to restart and then failed at that, and everything that has followed has been a recurrence of the same exact symptoms. Really weird.
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KrisW
Scoot Junior
Retired
Posts: 9
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Post by KrisW on Jul 23, 2019 6:43:35 GMT -5
there's some offerings for a Tao Tao Powermax 150 with 12" tires, disc/drum and good basic transportation, shipped to my door for 820-840 in the crate Receiving the Certificate Of Origin in a timely manner MAY be an issue. Should be able to get insurance immediately, and perhaps a DMV "temp tag" . . but may take a month to get the COO for title and registration. Include the Peace Sports 150 808-7G in your research. Jiajue has a decent reputation, and this model has the GY6-B engine. If you're willing to "roll the dice" on Dongfang . . they offer some 169cc models. I looked at both of these. The Peacesports listing does not give you a price up front. You have to give them information to get it from them, and I don't do business with people who play those kinds of marketing games with me. I want the price, and I don't want to give you any of my information so that you can harass me for a sale later on, if I decide not to make a purchase. It's an insidious tactic. Avoid such vendors if you can. As for the DongFang, their price is well above my priced break. I'm on a bit of a limited budget, so anything over $1000 is kind of a non starter. I went with the Superior Motorsports version of the TaoTao 150 Powermax, which is a good basic generic model that gets everything done that I need. They even priced matched me to the 360powersports listing (out of Arlington Texas) and are shipping me a red version of the scooter from an Indiana warehouse. $823.90 total cost, which I consider to be an incredible bargain since my 50cc TaoTao Huragan cost me $800. It has the 53" wheel base and comes in at the same weight as my Huragan, so it's going to be quite the upgrade to my scooter riding. Why didn't I go with the 360powersports offering, since they have the exact same product line? I called them to clarify some details, and was transferred to a tech support person in India.... I'm an AMERICAN!!!... i want to talk to AMERICANS when I do business for something I am buying in TEXAS, for crying out loud... I'm not xenophobic...I'm particular. Foreigners don't understand American colloquialisms and catch phrases. Even other English speaking countries have difficulty understanding us in some cases. It may be a Chinese product, but in America, we speak American, deal with other Americans, and By God can only have a proper argument with someone from...America. The rest of the World just doesn't understand us. I'll put a photo build record on here for anyone who is interested. We used to build similar Chinese based scooters, ATV's and small motorcycles during the Christmas season when I was working for Pep Boys. They'd line them up in the front showroom of the store and people would come in for Black Friday bargains and then we'd spend 3-4 days pulling the cycles out of crates and finish assembling them, tuning the carburetors and getting them road ready. We got paid .5 hours to finish assemble a scooter, .3 hours for the 50cc ATV's, about an hour for the 125-250cc ATV's and 1.5 hours for a side by side off road go-cart since it had a roll cage that needed to be assembled. It took longer than we got paid to do it, but business was usually slow at those times anyway, and anything you can do to fill the hours with money-making is a plus in my book. And, as for the Huragan?? I'm going to do some measuring. The future holds a short-case 150 for it. No sense in going back to 50cc's if they're just going to be underpowered and overly expensive to keep at a high enough performance level to be properly useful. Thanks for the interest.
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Post by mike007 on Jul 27, 2019 10:04:51 GMT -5
how much compression does it have?
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KrisW
Scoot Junior
Retired
Posts: 9
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Post by KrisW on Aug 2, 2019 9:49:52 GMT -5
UPDATE:
Alrighty..... I got the 150cc powermax and put it together, it started after about 15 seconds of cranking and runs pretty darned well. SCARY fast with the lightweight chassis at 60+ mph (seen GPS verified 63 on the flat with no tail wind), very nimble and quick and a slightly shorter wheelbase than my full sized 50. One problem with it. it 'surges' at about 30-35 mph and around 3000-3500 rpm,which is really bothersome. It's a mild thing, and typical of carbureted engines, but I didn't like it, so I decided to see if I could swap out one of the 20mm carburetors in place of the 24mm stock piece, and get rid of the mid-range surge with a slightly smaller carb which would be flowing air at a higher velocity at the same rpm. First thing, the intake snorkel on the 150 is larger for the carb mounting than the 50cc unit.... BUT, the inlet snorkels have the same bolt pattern and the inner diameter where it mates to the head is close enough to ensure a good seal, so I swapped the new snorkel for the 50 onto the 150, attached my carb and linkages and fuel line, plugged the extra vacuum line used on the 150 style carburetor, and gave it a try.
Welll... now things get interesting. It would not start. Cranked and tried to run...just like the 50...but no go. I slowly opened the throttle with the hand grip and it kind of tried to go, but would not catch..
Sound familiar?
I thought about it for a couple of minutes, then opened the idle mixture 2 more turns, and started cranking up the idle speed screw and retrying the start WITHOUT touching the throttle. Finally, after turning the screw in another 4 turns (!!!!) it kinda-sorta tried to get going...running rough and very slowly but starting to clear its throat. I tried to give it some throttle and it died, so I let it idle and it got better and better. Occasionally I'd try the throttle again and it would stumble and try to die, but each time it got better. After about 10 failed throttle snaps it finally caught and went to full revs, spinning the rear tire very hard with the center stand holding it off the ground.
SUCCESS!!!!!
I then started adjusting things, since it was idling very high now, and slowly brought it back down to 1500 rpm (according to the tachometer), then played with the idle mixture and idle speed till I had it running smoothly. Then I shut it off and tried a restart. Instant crank up and go. Very nice. I put the seat back in place and took it for a spin. The power was down slightly compared to the bigger carburetor, which I'd expected, but the midrange surge seemed to be tamed down a bit, so I took it to the store to get a few things, bringing the original carburetor and all my tools along in the seat bucket just in case it decided to not start again. I came out of the store after a half hour, hit the starter and it fired right up, idling pretty high while the solenoid caught up with things then purring very smoothly after about a minute of warm-up.
I got home, noticing along the way that it still had a noticeable mid-range surge, though not as bad as before, AND that it would top out at about 58 mph with the smaller carburetor, something to consider for the future. The throttle response was more subdued, and took more twisting of the grip to get the same effect, but it was instantaneous and smooth in all instances.
Back home I swapped the original pieces back onto the engine and tested it on the road and everything was back to normal with the larger carburetor in place. I bolted the now properly functioning carburetor and inlet snorkel onto the 50 cc scooter (now that I'm sure it works properly) and over the next few days I'll UN-do all the things I did to try to get it to run again, including putting the original stator back in place and re-setting the camshaft timing to the setting that is not one-tooth advanced, and see if it starts for me. I'm going to have to get a new battery, it seems, just to be on the sure side. We're in the middle of a week of storm fronts and heavy rain, so I'm going to be dodging that at the same time I will be working on the engine. (Yes... it's parked outside... I don't have a garage or carport)
If it starts and runs I'm going to keep it parked while I get a stroker crankshaft for it, along with all the parts that the new crank will require, and do a complete and proper rebuild with the heavier duty components to assure against any future failures of things like bearing or wrist pins. The stroker kit (44mm) will make it a 92cc engine using the 50mm bore kit, which will be plenty for this large-frame scooter.
So... I'll keep everyone updated on my progress. It was the carburetor...or carburetors...all along it appears, which is bothersome. I've never seen such problems from a carburetor, especially not with the replacement unit, brand new out of the box, having the exact same problem. It's very strange. But, now I know, and can move forward from that.
Thanks for all the responses and advice. I'll keep you all apprised of my progress.
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Post by bullybike on Aug 4, 2019 21:12:03 GMT -5
Shot in dark... Crap spark wire/boot or coil connector. Notoriously dicey. Exasperated by large factory plug gap. ?
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