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Post by Scootrific on Aug 6, 2019 10:50:28 GMT -5
I brought an used 2011 Baotian BT49QT-28, what usualy looks like on these pictures below (same colours). Original Specs: Baotian BT49QT-28C Scooter 50/49 cc Year 2011 4-Stroke 90cc TECHNICAL SPECIFICATION Engine Power 4 kW (5 PS(Hp)) Fuel Type: Petrol Gearbox: Automatic transmission Description BT49QT-49cc Scooter MAWI 28B 4.8 hp But, Previous owner made some modifications and went racing, with that. After that, scoot has 90cc 4-Stroke engine  . Illustrated Pics: 
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Post by Scootrific on Aug 27, 2019 4:28:58 GMT -5
I will take some stuff from the 2011 Baotian BT49QT-28B scoot, and place them on the 4-stroke Baotian BT49QT-20c:
wiring,
digital speedo gauge,
Digital Speedo wiring,
fuel tank,
all plastic panels,
front lights,
sidemarker lights,
Complete taillight,
Frame numbers + VIN code.
Other parts I will keep:
13" Wheels, with disc brakes (tires and valves will be swapped),
Brand new 12V battery,
Some of the Baotian BT49QT-28 frame, I will use to make foot rest (like choppers have). The 2-stroke engine, that the 2011 Baotian BT49QT-28 has, I will sell. Aslo, other parts, that I do not need.
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Post by Scootrific on Aug 27, 2019 15:01:19 GMT -5
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Post by Scootrific on Aug 27, 2019 17:30:16 GMT -5
White/Blue (90cc) scoot has TWH sport clutch, with red springs. TWH rear shock. CVT pics:    |
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Post by Scootrific on Aug 27, 2019 23:21:17 GMT -5
Now the Black/Gold donor scoot is stripped, the wiring and etc. I will sell the 2T engine (complete, with oiltank), fuel tank (2 pcs, one is without level thing). I´m gonna keep: both wheels, front shocks, Some pics:     |
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Post by Scootrific on Aug 29, 2019 10:36:49 GMT -5
I noticed, that I can´t use the plastic panels, from the black and gold Baotian, because, the parts do not line up, with the older version plastic parts. I´m going to use the original plastic covers instead. I installed the Black/Gold wiring to the second 90cc scoot, but did not get the scoot running, because, I did nit have some parts, what go with the magneto. I think . I did some exhaust flame pipe welding, to the blue/white 90cc scoot:  |
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Post by Scootrific on Aug 31, 2019 12:54:02 GMT -5
Today I installed the magneto and ignition coil to the 90cc scoot. I have a different 12V oil pump, with radiator. I took some wires and switch, then + from battery and ground from frame. The oil pump is working now. Sidemarker light, front lights, rear tail and brake light and horn - these work fine too. But, when I tried the starter button - No sound. Like it is not blugged in or something. I tried to find the problem, but no luck. I found a wiring diagram for the starter button and other staff for the scoot.
From battery to starter relay + , from relay to starter is are ok.
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Post by jloi on Sept 1, 2019 11:22:24 GMT -5
kill switch ?
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Post by aeroxbud on Sept 1, 2019 18:49:20 GMT -5
If you jump the relay, will it start?
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Post by Scootrific on Oct 19, 2019 5:05:23 GMT -5
If you jump the relay, will it start? No it would not start. I think I have to swap the throttle cable. The wireing is from Baotian BT49QT-28 (2-stroke) model. And I think the coil, what is under the magneto, is wrong too. The shop, I used to buy the parts, had 3 types of these things (stock at shop), for the 139qmb engine. That engine is 90cc from the factory and is customized to race useage, with oilcooler and 12V oilpump. |
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Post by Scootrific on May 17, 2021 10:29:18 GMT -5
I was thinking, what to do, with the scoot. I think, I will do a engine swap and the engine, I will be using is this: Engine 125cc 1P54FMI - el.starter, kickstarter, manuaal. Then I need to fabricate a new mounting point for the rear wheel, with disc brake braket. Also I need to sort out the starter button thing and other issues, what are problems, for starting the engine, I have on the scoot right now. The usual shop, that I go to, for my Scoot parts, there is shown the same engine as manual. One other shop site says, that it is automatic. Maybe there is 2 engines - one is manual and the other is automatic. I do not know right now.     |
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Post by Scootrific on May 17, 2021 22:11:11 GMT -5
This one is 125cc 1P54FMI - el.starter, kickstarter, automatic model. I might go for this one, then I have to do few less mods to my Scoot.   |
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Post by Scootrific on May 22, 2021 5:59:04 GMT -5
I was thinking little bit. Before I do the engine swap, I will try out something else. I will rewire the scoot and I will use the MotoGadget M-unit for the Brain of the scoot, to control everything. There is a Basic and Blue one. I will use the Blue one, because it has the bluetooth option, to connect the scoot to your phone. It will me simpler, to adjust settings and stuff afterwards.   |
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Post by Scootrific on Jun 16, 2021 13:17:38 GMT -5
Today arrived the stuff, I ordered from MotoGadget (Germany). 1. Motogadget M-Unit (with bluetooth) 2. Wiring kit with fuses and suff.  |
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Post by x7rocks on Jun 16, 2021 21:19:29 GMT -5
Today arrived the stuff, I ordered from MotoGadget (Germany). 1. Motogadget M-Unit (with bluetooth) 2. Wiring kit with fuses and suff. Just did a friends bmw k100 with a motogadget, was great how it simplified an entire wiring harness for it. |
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