New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 7, 2013 9:59:17 GMT -5
I have a 2012 Tao Tao ATM50. I was topping out at 32 mph on flat ground (I weigh 190lb). I upgraded the 5g rollers to 5g sliders and now I am topping out at 36mph (all gps verified). My question is, what other cheap things can I do to gain a couple more mph?
Anything geared to this scooter would be great. Of course, I searched and there is a lot of generic info that I don't know if it applies to my scooter. I posted before on another board and got a lot of generic information that applied to other scooters (apparently this model is not restricted at all, carb is not adjustable, etc.).
Thanks
|
|
|
|
Post by ramblinman on Apr 7, 2013 13:30:39 GMT -5
|
|
|
|
Post by prodigit on Apr 7, 2013 16:22:46 GMT -5
Once you pass ~500 miles, and the initial break in is done, things will go better.
Just make sure the tires are pumped to 35PSI, and I personally took out the spark plug, and hammered the arm a little closer to the tip, and put it back in.
10W40 is about the best oil type you can put in there.
From there, it's just waiting until the engine is hot, and you'll be going 45+MPH!
|
|
|
|
Post by tvnacman on Apr 7, 2013 16:36:48 GMT -5
You could try a larger diameter variator . That will increase you ratio in the cvt .
John
|
|
|
|
Post by alleyoop on Apr 7, 2013 16:44:43 GMT -5
Yep, without going into the motor and putting in a bigger piston try a larger diameter variator.
Easy to put on and then you can try different weights to get the belt to climb on the bigger variator for a couple more mph.
Alleyoop
|
|
|
|
Post by skuttadawg on Apr 7, 2013 19:39:54 GMT -5
Install a larger mainjet or even better a new carb that is tuneable instead of sealed . If it has a Torch brand of sparkplug replace with a NGKDPR7EA or the iridium which is better . Mine came with 8 gram rollers and zoomed with 5 gram rollers . Maybe a gram heavier slider will help out top end . A BBK is the best way to get more power and will require upjetting
|
|
New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 7, 2013 21:55:41 GMT -5
Once you pass ~500 miles, and the initial break in is done, things will go better. Just make sure the tires are pumped to 35PSI, and I personally took out the spark plug, and hammered the arm a little closer to the tip, and put it back in. 10W40 is about the best oil type you can put in there. From there, it's just waiting until the engine is hot, and you'll be going 45+MPH! I put synthetic Castro 10w 40 oil in. i put in iridium spark in it. I put premium fuel. I have about 700 mile on it. I did inflate the tires...they were way low after winter. Oddly enough, they didn't produce any gains (well, so it seemed...with wind variances, etc....at hard to tell). I read about all these people saying they are getting 45-50mph on one of these scooters. Ultimately, it seems they 1) weight like 110 lb 2) have a "secret" 62cc. 3) have spent a ton on bbk, a lot of upgraded parts, etc. |
|
New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 7, 2013 21:56:02 GMT -5
|
|
New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 7, 2013 21:57:46 GMT -5
Install a larger mainjet or even better a new carb that is tuneable instead of sealed . If it has a Torch brand of sparkplug replace with a NGKDPR7EA or the iridium which is better . Mine came with 8 gram rollers and zoomed with 5 gram rollers . Maybe a gram heavier slider will help out top end . A BBK is the best way to get more power and will require upjetting From what I have read, this carb is hard to get open. Any suggestions a new one? What kind of gain can I get from that? Do I have to tune other things if I replace the carb? |
|
New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 8, 2013 18:50:12 GMT -5
|
|
|
|
Post by alleyoop on Apr 8, 2013 19:56:46 GMT -5
Michael,
Do not believe everything some of the people say they are getting on their top end. I don't know why, maybe it makes them feel good or their reading the speedo in KM/H instead of MPH.
Also the speedos on the scoots are way off some over 20% most are 10-20% off. I usually get in a pissing match when someone puts up unrealistic numbers of their top end speed and I ask them to prove it. And to tell you the truth they do not come back and prove it.
To get a 139qmb motor to go over 40 mph takes a lot and it takes more displacement , CVT changes, Free Flow exhaust and free flow filter plus up jetting the carb and still it has to be running in tip top shape. For your scoot the specs STOCK say 35mph and Let me add, the dealers are no dumbies they will always bump up the specs to show higher top end speeds especially on the 50s because they know the younger crowd buys those and they want speed and that is the truth. In reality that scoot will do a little over 30-32mph.
I know it is not what you want to hear but I am telling you the truth. If you have it doing A REAL 35mph consistently you have a good running scoot there.
Alleyoop
|
|
|
|
Post by prodigit on Apr 8, 2013 20:05:25 GMT -5
Once you pass ~500 miles, and the initial break in is done, things will go better. Just make sure the tires are pumped to 35PSI, and I personally took out the spark plug, and hammered the arm a little closer to the tip, and put it back in. 10W40 is about the best oil type you can put in there. From there, it's just waiting until the engine is hot, and you'll be going 45+MPH! I put synthetic Castro 10w 40 oil in. i put in iridium spark in it. I put premium fuel. I have about 700 mile on it. I did inflate the tires...they were way low after winter. Oddly enough, they didn't produce any gains (well, so it seemed...with wind variances, etc....at hard to tell). I read about all these people saying they are getting 45-50mph on one of these scooters. Ultimately, it seems they 1) weight like 110 lb 2) have a "secret" 62cc. 3) have spent a ton on bbk, a lot of upgraded parts, etc. I'm one of them! My scoot does ~50MPH GPS verified (~60MPH on the speedo, which is not even there, because the speedo only indicates 'till 40MPH) 1- I'm 170 2- I don't know what I have (yet), but presume it's a regular 49cc (the manual says something like a 50.5cc) 3- Technically, I did not spend a cent on performance upgrades (windshield excluded, which can be debated if it actually causes speed gains or not). The scooter is very sensitive to wind and hills. With the least of them, I won't be able to get above 40. With strong winds, and uphill, I barely make 30MPH. I can only gain 45+ MPH after the engine has warmed up. It seems that doing a series of WOT accelerations, and engine braking, warms up the engine the fastest. But usually it takes a good 15-20 minutes, in 65-70 degrees weather, to get the engine hot enough. It also takes long stretches. If you are riding on a road with a lot of stop signs, you won't ever make 45MPH; as in my case, on a hot engine, it takes just under 10 blocks to get to top speed. I've also noted that BP Premium fuel is a lot different from other brands like chevron, shell, citgo, texaco, mobil, etc... For some reason I get more performance out of that fuel, not only with my scoots, but also with my car. On my Honda VT750 however, which is made to run on 87 oct fuel, I do not notice any performance difference |
|
New Rider
Currently Offline
Posts: 22
Likes: 0
Joined: Mar 23, 2013 9:09:14 GMT -5
|
Post by michaeljc70 on Apr 8, 2013 21:56:25 GMT -5
I think that quoting a speed with wind pushing you or going downhill is silly. Of course, my scooter will go 50 if I had a 20mph wind perfectly pushing me.
Has anyone drilled holes in the airbox or replaced the air filter? Some people claim good gains from that.
I was personally happy to get the 4mph gain from the rollers. I am not sure if the performance variator will yield me much more beyond that.
I live in Chicago in a very urban area. Street speeds limits are technically 30, but most people drive 35-40 when there isn't a lot of traffic. I am just trying to avoid being plowed over. Upper 30s mph would be sufficient.
|
|
|
|
Post by prodigit on Apr 9, 2013 11:08:54 GMT -5
Another unbeliever.
With wind in the back, my scooter exceeds 50MPH. Those numbers are at a fairly wind still environment.
The issue is that you're looking for more low end power, but that's about all the engine has to offer.
Top speed only accumulates as the engine makes more revs, it gets more torque, and is able to overcome more wind resistance.
It's a fine balancing act of finding the right gearing, and optimize the engine for top speed.
At low end speed there's very little you can do. A BBK is your best option.
If you see that the spark plug is good color, you could always make your airflow a bit bigger, running a bit leaner, and install bigger jets, or change the carburetor.
That would take care of a hair better acceleration; not much, but something, perhaps not even noticeable...
|
|
|
|
Post by wutzthedeal on Apr 9, 2013 18:13:07 GMT -5
I think that quoting a speed with wind pushing you or going downhill is silly. Of course, my scooter will go 50 if I had a 20mph wind perfectly pushing me. Has anyone drilled holes in the airbox or replaced the air filter? Some people claim good gains from that. I was personally happy to get the 4mph gain from the rollers. I am not sure if the performance variator will yield me much more beyond that. I live in Chicago in a very urban area. Street speeds limits are technically 30, but most people drive 35-40 when there isn't a lot of traffic. I am just trying to avoid being plowed over. Upper 30s mph would be sufficient. I've drilled holes; no help. Still getting around 33mph tops until wind comes into play. When people tell you they are going over 40mph on one of these things, be extremely skeptical and even if they prove it, understand that they are a rare, miraculous exception to the rule that binds 99.9% of us 50 owners. |
|
..BAD TO THE BONE..
