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Post by PCBGY6 on May 9, 2013 23:43:07 GMT -5
Well I run out to taco bell today and had a few things with extra beans. On my way home I had air coming from my back side and picked up 13 mph. Had I been going downhill at the same time I may have wiped out. Oh and my scoot is stock. Well mostly..... I have fresh muffler bearings and blinker fluid.
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Post by millsc on May 9, 2013 23:44:49 GMT -5
blinker fluid is like nos didn't you know  |
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Post by prodigit on May 10, 2013 0:33:23 GMT -5
wish my stock tao's went 60 would of saved me 600 bucks on each scoot on upgrades Try to select roads that are only going downhill, and ride only on days with wind in the back. And pump up your tires, air costs next to nothing. Thadaa! 60MPH! Speed off the chart! |
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Post by hank on May 10, 2013 0:41:46 GMT -5
wish my stock tao's went 60 would of saved me 600 bucks on each scoot on upgrades Try to select roads that are only going downhill, and ride only on days with wind in the back. And pump up your tires, air costs next to nothing. Thadaa! 60MPH! Hi One more thing to add is that you should never push a stock 4t 50 cc engine that hard even for short periods as its not going to last for very long with that type of stress and abuse Take care and ride safely dear friend Yours Hank |
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Post by millsc on May 10, 2013 8:01:50 GMT -5
I don't full throttle downhill, it's not good for the motor  |
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Post by carasdad on May 10, 2013 8:13:57 GMT -5
I don't full throttle downhill, it's not good for the motor Aw come on millsc...a tiny 4T screaming at 10,800 rpm scares ya? Nothing like a Grenade under yer crotch huh?..  |
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Post by skuttadawg on May 10, 2013 9:00:38 GMT -5
Get a Kevlar shatter shield . Wow I would be noid getting towed that fast . I hope you held onto the rope by hand instead of having it tied
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Post by carasdad on May 10, 2013 12:39:50 GMT -5
Get a Kevlar shatter shield . Wow I would be noid getting towed that fast . I hope you held onto the rope by hand instead of having it tied No...read up...we had it in the bed of truck...  Not being towed...omg no.. |
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Freshman Rider
Currently Offline
Posts: 56
Likes: 2
Joined: May 14, 2013 22:50:01 GMT -5
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Post by chihuahuas on May 10, 2013 12:58:24 GMT -5
Ka Booom
scooters are supposed to blow up sooner than later.
Take headgasket off
blow tires to 60psi
strap a leafblower to the back.
Hold on Baby
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Sophomore Rider
Currently Offline
Posts: 134
Likes: 1
Joined: Mar 3, 2013 11:46:47 GMT -5
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Post by jwalz1 on May 10, 2013 14:39:41 GMT -5
Yee haw!! My Jonway Hornet 2T with BBK hit 75mph today...didn't even have to put 40psi in the tires or mix 10w-30 and 10w-40 for the speed increase. Which is well known for making your stock Tao Tao 50cc..hit 60mph.  Going to have to change your signature. |
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Post by prodigit on May 10, 2013 14:54:57 GMT -5
Try to select roads that are only going downhill, and ride only on days with wind in the back. And pump up your tires, air costs next to nothing. Thadaa! 60MPH! Hi One more thing to add is that you should never push a stock 4t 50 cc engine that hard even for short periods as its not going to last for very long with that type of stress and abuse Take care and ride safely dear friend Yours Hank That would be wise advise. The manual also says not to let the engine rev without load. Going downhill at those speeds is basically the same. However at ~60MPH, the engine is still doing below 10k rpm. Higher than 10k RPM, and the engine rattles itself apart (screws literally come loose due to the vibrations). |
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Post by scootnwinn on May 10, 2013 15:38:40 GMT -5
Does the ATM 50 have a tach?
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Post by hank on May 10, 2013 15:43:57 GMT -5
Hi One more thing to add is that you should never push a stock 4t 50 cc engine that hard even for short periods as its not going to last for very long with that type of stress and abuse Take care and ride safely dear friend Yours Hank That would be wise advise. The manual also says not to let the engine rev without load. Going downhill at those speeds is basically the same. However at ~60MPH, the engine is still doing below 10k rpm. Higher than 10k RPM, and the engine rattles itself apart (screws literally come loose due to the vibrations). Hi You still could experiance valve float which is detrimental to any engine "Valve Float" refers to a condition in which the valve-springs fail to fully close the valves, allowing them to "float" during the stroke cycle. Floating valves can result in valve-piston contact with consequent catastrophic mechanical damage. This is caused by revving the engine past it's red-line, or the maximum RPMs the engine was designed to run. Take care and ride safely dear friend Yours Hank |
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Post by prodigit on May 10, 2013 20:28:44 GMT -5
That redline will be 11k RPM. The CDI usually limits the engine ~10k RPM. And while riding normally, you'd never surpass 7 to 7,5k RPM. That I get ~10500 RPM @ 60MPH, is a mathematical calculation deducted from riding 40MPH @7k RPM. Engine RPM is linear to speed when the CVT is maxed out. The ATM50 does not have a tach, so the values I tell you are approximate. Working with other scoots, I can tell in what RPM range an engine is running, and am usually within 500RPM correct on it. My evo does have one though. When I rev both to where the engine sounds about the same frequency, I know they're about in the same RPM range and the EVO shows how much that is (EVO goes to ~10.2-10.5 RPM without load). BTW, if you really want to know, you can get an instrument tuner app on your smart phone, and hold it close to the engine. Whatever frequency your phone tells you, usually is 1/2 or 1/4th the real RPM for 4 strokes; or on a 2 stroke they're actually showing correct values. If the instrument tuner app is only showing notes, like eg: C-6, you can convert that using following tables: www.phy.mtu.edu/~suits/notefreqs.htmlAnd use your logic to do the rest (eg: if the outcome is 450Hz, 900, or 1800Hz at idle, you know you're running at 900rpm idle, unless you set it to idle high at 1800RPM; etc...). |
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