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Post by JoeyBee on Dec 27, 2014 0:32:57 GMT -5
Howdy everyone.
I'm new to the site, and need a piece of advice. I have a 2014 TaoTao Powermax 150cc and am starting to mod my ride. So far all I have done is break it in, remove all emission control devices ,and derestrict the airbox.
My first major tuning project is the carburetor but I am unsure of the stock main jet size. I'm going to swap the stock restricted carburetor for a standard unrestricted from Scrappy Dogs. With the airbox mod I know I need to increase my fuel ratio.
I don't want to tear into the stock carburetor in case I have to resort back to it as a spare or fall-back.
Any ideas?
Joey in South Texas.
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Post by geh3333 on Dec 27, 2014 3:02:10 GMT -5
You should be fine with a 110 main leave the pilot stock which will be either a 35 or a 38 . the stock main was probably around a 107
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Post by geh3333 on Dec 27, 2014 3:14:27 GMT -5
If you want to get the most out of your scoot and not spend to much buy a 28mm carb and use the 110 main and a 38 pilot . tune the CVT with lighter then stock weights so that your rpms can reach 7500 on a straight run . u don't want to be able to redline on a straight run. I read u "derestricted you air filter ". Not sure what u did but u want to run a uni like the pic below. Also if u have the extra cash u should by a high performance exhaust. Without the exhaust your looking at around 80 bucks possibly less. With the exhaust around $180 . with these mods you should be able to hit a gps verified 60 - 65 mph .  |
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Post by JoeyBee on Dec 27, 2014 12:06:01 GMT -5
If you want to get the most out of your scoot and not spend to much buy a 28mm carb and use the 110 main and a 38 pilot . tune the CVT with lighter then stock weights so that your rpms can reach 7500 on a straight run . u don't want to be able to redline on a straight run. I read u "derestricted you air filter ". Not sure what u did but u want to run a uni like the pic below. Also if u have the extra cash u should by a high performance exhaust. Without the exhaust your looking at around 80 bucks possibly less. With the exhaust around $180 . with these mods you should be able to hit a gps verified 60 - 65 mph . First off, thank you for the reply. I plan on sticking with a standard size carb. Not sure of the exact size, but it's was listed as standard for a 150cc on Scappy Dogs. It has K14D27 printed near the air intake. As for derestricting the air box, I was referring to slightly rotating the the intake for better flow and removing all the junk gasses that get tossed back into it. I would rather have the gas, crankcase, and valve cover vent to the atmosphere then back into the carb. That way It won't mess with my fuel:air ratio and "gum up" the engine. I noticed from past topics that increasing air requires increasing fuel input. CVT is next. I have lighter weights, springs, and spare parts ordered. I just want to make sure the engine is purring before I tune that next. Right now with the stock setup RPMs top-out around 6000-6500 on a straight and flat road. My goal is to have a finely tuned scoot that will loosen teeth fillings, but not look modified. I want less attention as possible, which is why I'm reluctant to switch to a pod filter. Air box i.imgur.com/NQouSEf.jpgEngine i.imgur.com/nmqX0QB.jpg |
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Post by rdhood on Dec 28, 2014 17:22:12 GMT -5
Newbie question here:
So my airbox is kind of like the one above.. how do you attach the uni filter when the original airbox is like that? Wouldn't a oiled unifilter need to be protected?
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Post by JoeyBee on Dec 28, 2014 21:44:49 GMT -5
Newbie question here: So my airbox is kind of like the one above.. how do you attach the uni filter when the original airbox is like that? Wouldn't a oiled unifilter need to be protected? The installation of a uni filter is very simple and straight forward. Loosen the hose clamp that attaches the air box to the carburetor. Follow the box outwards to the rear of the scooter and remove all connections and screws. When removing screws and bolts ensure they don't have a dual purpose, if they do like a couple CVT bolts, reattach once the air box is removed. Once done attach the uni filter to the carburetor which completes the installation. An unprotected oiled filter will be fine. Depending on where you drive your scoot will determine how often you clean it. If your driving it on a dirt track cleaning will be more regular than pavement driving around town. *** Installation of a uni/pod filter will require upgrading the main jet of the carburetor one or two sizes depending on the air flow*** |
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Post by tvnacman on Dec 29, 2014 7:44:30 GMT -5
leave the old air box where it is , pull the hose from the air box to the carb . Slip this on the back of your carb . John |
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Post by JoeyBee on Dec 29, 2014 12:21:45 GMT -5
leave the old air box where it is , pull the hose from the air box to the carb . Slip this on the back of your carb . John Why leave the air box where it is? Wouldn't the arm be in the way of the new filter? |
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Post by tvnacman on Dec 29, 2014 13:57:39 GMT -5
leave the old air box where it is , pull the hose from the air box to the carb . Slip this on the back of your carb . John Why leave the air box where it is? Wouldn't the arm be in the way of the new filter? look at the hose from your air box to your carb next to the size of the pod filter . |
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Post by JoeyBee on Dec 30, 2014 1:05:19 GMT -5
UPDATE The new carburetor went in without a problem. I also used the opportunity to install a clear fuel line. I also swapped out an unidentifiable main jet that came with it for a #114. Adjusted the air-fuel mixture screw and the ride is purring like a kitten. I may upgrade to the #120 main jet depending on the performance. For testing purposes I found a desolate straight stretch of road where I can go WOT for comparison after installing the carburetor and tuning in the future. GPS logged it as 0.163 miles (287.145 yards). Out of four runs I averaged 16 seconds (16, 16, 15, 16). It was too late to go for a ride after installation, so I will have to test it tomorrow. Spark Plug before carburetor installation.  After carburetor installation.  |
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