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Post by Alleyoop on May 8, 2016 20:27:05 GMT -6
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Post by Alleyoop on May 8, 2016 19:52:07 GMT -6
Normally the 50s stock come with a 30-32 pilot jet, the 150s come with 24mm carb with #35 Pilot and main anywhere from 103-107. Getting 45mph out of a 50 is excellent not to many can get them to 40mph maybe 38mph and they complain cause they thought it would get them 40+. Got to remember they only did 30 maybe 32mph and to get them to go 8 mph faster takes quite a bit let alone 45 (HEHE). So you have a screaming 50 BRO.
Those piecec of metal where they in the mesh filter or did they come out from the crank case? I am trying to picture the pieces to try and identify where they came from. If they where in the Filter then the pieces are maybe from around the oil pump. The pieces do not look like pieces of the rings or the chain if from the crank maybe from the bearing seal Which would not be good.
Alleyoop
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Post by Alleyoop on May 8, 2016 19:10:23 GMT -6
The restricted CDI's are few and far in between I have yet to have anyone verify that their CDI is rev limited. Back in the older scoots they used to be restricted but you would be hard to fine one in the later scoots. Very noticeable if you have a rev restricted CDI but most are not knowledgable to tell one way or another (LOL) they just think it's restricted cause their scoots are slugs (LOL). But any stock 50cc will only do 30 maybe a little more if your lucky. Takes quite a bit to get them to get up to near 40mph.
IMO the biggest you should put on a 50 is a 20mm but if you can get it to run descent with a bigger carb by all means. Just remember to much fuel will slow things up. I am surprised to hear you have a #45 Pilot jet WOW! Your the first I have heard with a built 50 with such a big arse pilot jet.
Even MILLSC which is a Heck of a builder of 50s only went with a #38 with a full blown 50s build he tried a #40 and it was to much. Even with your 150s some slap in a 32mm carb which not even the 250s come with and they have a heck of a time getting them to run HALF WAY descent. What I do is ask them to video a wide open take off from a complete stop from idle. That will tell right off the bat if the carby is to much.
My Trike I have a #38 pilot a 40 was to much and a 122.5 Main, I have a 62bbk with a 60mm stroker bringing up from 149.6 to 182cc(30) more ccs, plus all the goodies to go with it, 1 1/4 pipe Free Flow Supertrapp adjustable muffler Free flow K&N Filter Taller tranny gears and on and on
Can you VIDEO it idling and giving the throttle a couple quick blips to see how it takes throttle from a standstill.
Alleyoop
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Post by Alleyoop on May 8, 2016 18:30:14 GMT -6
That scoot uses the KEY TO OPEN the SEAT? I put up a picture of the scoot and it shows it has the KEY ON THE FENDER to open the seat?.
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Post by Alleyoop on May 8, 2016 18:25:53 GMT -6
Good luck that should be pretty close I would think.  And if it is off by a little you can always add to the number or subtract from the number  |
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Post by Alleyoop on May 8, 2016 18:16:53 GMT -6
I took it that you adjusted 2 turns OUT from the closed position. I did not know that you had it out from the closed position 4 full turns. That would either mean you were running really rich OR you Main Jet is to small.
The thing to do is FROM wherever it is at turn it 1/4 at a time to get the highest rpm the back it off 1/8 HALF of the 1/4 turn. Reason you only adjust it 1/4 at a time is 1/4 to much or to little makes a big difference. If you go 1/2 turns the sweet spot may be within that 1/2 turn. People just want to rush these adjustment then have to go back and fart around with it somemore.
Just F.Y.I I have NOT TOUCHED my fuel ratio mixture screw going on THREE years. Once you set it especially in your are where it is mostly hot you should not have to mess with it unless something is out of whack like valves or air leaks.
Alleyoop
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Post by Alleyoop on May 8, 2016 16:15:49 GMT -6
Well setting it from 130 to 452 should give a higher number, we may have found what it needs to be set at. Those chinese instructions are not very clear of what to use really as all of their instructions for anything else for that matter  |
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Post by Alleyoop on May 8, 2016 16:13:17 GMT -6
I would say it is either bad bulb, switch or wire to low bean came loose.
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Post by Alleyoop on May 8, 2016 15:19:48 GMT -6
Ok try 482mm tire diameter of 19.
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Post by Alleyoop on May 8, 2016 15:13:32 GMT -6
Great when you get the highest RPM just turn it COUNTER CLOCKWISE about 1/8 of a turn.
You adjust to get the highest rpm by turning it 1/4 at a time then on the LAST 1/4 turn and you reached the highest turn it 1/8 the opposite to give it a tad more fuel and that will be the good setting.
Alleyoop
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Post by Alleyoop on May 8, 2016 15:05:57 GMT -6
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Post by Alleyoop on May 8, 2016 14:31:01 GMT -6
Ok the circumference is 1527mm
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Post by Alleyoop on May 8, 2016 14:19:03 GMT -6
Nope get the size off the tire, it will say 130x60x13 or something like that.
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Post by Alleyoop on May 8, 2016 13:54:37 GMT -6
Best to get the right circumference is put a chalk mark on the tire and floor then roll it have the tir mark hit the floor and mark it there. Then measure the distance from mark to mark and convert the inchs to MM. What size are you tires 130x??x?? Alleyoop |
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Post by Alleyoop on May 8, 2016 12:39:54 GMT -6
Make sure the 24mm intake Manifold is the same size as your Intake, if bigger then it will disrupt the fuel and air flow into the motor. If your really getting that much power from the 18 I do not see the need for the 24mm because you will have to drastically down jet the main?
You can get a 24mm with an accelerator pump just like the 18s They are called 24mm Performance Carbs.
A stroker will lower you rpms but not by a whole lot, not enough to get you down to 8K which is the redline for these motors. Also if you want the motor to last you should get the motor to run in the mid-7K range.
Slapping in taller gears for every tooth up and down expect about 2-3 more top end. But remember this you must have the low end torque to pull the taller gears also it will lower your rpms some.
What gram weights are you currently running with? The easiest means to lower your rpms is slap in heavier weights.
Rollers for every gram up or down the rpms will change by 500-600.
Sliders for every gram up or down the rpms will change by 200-350.
You mention it has a hard time running 5-15mph, what rpms does it idle at??
Alleyoop
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..BAD TO THE BONE..
And if it is off by a little you can always add to the number or subtract from the number 
