Motorcycle engine - parts
Flex Tech Fun 50 4T - Page 4

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Products reviews

2025-08-06, 20:35

Laurids

Broke off when tightening. Do not overtighten, if manual says 40 Nm do not tighten to spec. The magnet goes all the way down the bolt so there is very little material holding the head in place. Looked nice before the head fell on the floor though

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2021-03-07, 10:47

Adrian

I have been buying parts from gmoto for several years and I am very satisfied with the quality of the product, as it is made very solidly and aesthetically pleasing. The shaft protector that I recently bought fits perfectly to my 139qmb 4T engine

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2016-06-19, 11:30

Maciej

Zumico Quick 4t 50ccm. The set fit perfectly, the only remark is that the set was missing the bushing seen in the photo, which I replaced with the old one. Overall I recommend :)

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Gmoto's reply In the product description it is indicated that the kit includes the starter pinion and kicker and there is no bushing. We have updated the photo and it now shows the actual composition of the kit.

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2021-12-22, 15:07

Bernard

Motobi Huzar 4T 50cc. The product is solidly made. It is not a cheap Chinese product. Precise dimensions contribute to fast and trouble-free installation and operation.

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2019-11-17, 10:16

Adam

Kit very helpful when we want to recondition all the components responsible for starting our scooter everything fits very nicely I recommend it

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2016-03-29, 09:31

kuba

I bought the segment along with the kickstand and I am satisfied with the quality of the product. Very good and durable, I recommend to all motorcyclists

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2025-06-28, 07:30

Andrus

Fitted perfectly and the quality was very good.In addition, fast shipping and a good price.I would recommend this product to others.

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2017-12-17, 08:28

Edyta

I am 100% satisfied with this part.It is solid,made of very good material.You can see that it is strong and will serve for a long time.

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2024-08-30, 06:38

Jakub

The lever fits perfectly. It looks very nice. Affordable price. Lever at the scooter Kymco super 9 50.

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2024-10-06, 13:59

joachim

set of gaskets all are demanded none are damaged there are even gaskets for the valves low price worth it

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2024-02-03, 07:01

Piotrbronson

Seger, it can be, depends how you hit you have to be careful when assembling if you twist it, it won't hold!

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2019-06-01, 20:39

Artur

Kingway coliber fart, the ring will unfortunately break quickly.

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2021-04-14, 08:53

Igor

For scooter 139qmb 4t fits perfectly. Recommended.

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Motorcycle engine - parts Flex Tech Fun 50 4T - Page 4

Digger + digger segment - 77843

Minarelli Kymco CPI Peugeot GY6 101 Octane carbon look kick starter - VC11396

Secondary air gasket - valve cover 139 QMB 101 Octane - IP43128

Engine rubber round bushing GY6 139QMB 50 101 Octane - BT17377

Cylinder housing mounting bolt GY6 4T - 73762

GY6 139QMB 101 Octane camshaft bridge - BT13854

Foot starter gear 139QMB 101 Octane - BT14430

Foot starter mode 101 Octane - BT24486

Top timing chain guide 139 QMB 101 Octane - BT13875

Bottom timing chain guide 139 QMB 101 Octane - BT13874

Timing chain 139 QMB 101 Octane - BT40009

Engine complete with SLS short 101 Octane - BT17459

Foot starter shaft 101 Octane - BT12001

Foot starter lever 101 Octane - BT12007

Timing chain tensioner gasket 139 QMB 101 Octane - BT14735

Standard 139 QMB 101 Octane camshaft - BT3001

Motor complete with SLS wheels 10,139 QMB 101 Octane - BT17460

Timing tensioner for Chinese scooters 139 QMB 101 Octane - BT40002

Complete wheel motor 12 139 QMB 101 Octane - BT14196

Foot starter shaft protection 139 QMB 101 Octane - BT12006

Plastic foot starter spring ring 139 QMB 101 Octane - BT12003

Foot starter shaft gasket 139 QMB 101 Octane - BT12005

Foot starter spring 139 QMB 101 Octane - BT12004

Foot starter shaft 139 QMB 101 Octane - BT16653

Foot starter shaft bushing 139 QMB 101 Octane - BT14344

Magneti Marelli Kymco 50 4T Agility complete cylinder - MCI0014

Magneti Marelli Kymco Agility 50 4T 16 teeth crankshaft - MAM0023

Power Force Peugeot Kisbee Sym Orbit GY6 37 mm Euro4 cast iron cylinder - PF 10 008 0005

Airsal Sport 80cc GY6 50.0 mm complete piston - 06350150

Shaft bearing and seal set GY6 139QMA - 42777

Naraku V.2 50cc 39mm CNC 139QMB QMA complete piston - NK100.71.2

Naraku V.2 50cc GY6 Kymco 50 2V complete cylinder - NK100.25.2

4T GY6 460 mm belt cover gasket - 671251

JMP magnetic oil drain bolt M12x1.50 mm long 15 mm aluminum Racing gold

JMP aluminum complete cylinder

Athena O-Ring 2.5x113mm clutch cover gasket - S410270008038

Athena water pump gasket - S410270024018

Athena timing chain tensioner gasket

Athena O-Ring gasket 12x18x3 mm

Airsal Sport 80cc GY6 50 4T 139QMB 139QMA cylinder seals - 14350150

Airsal Sport 80cc piston rings d.50,00 mm GY6 50 4T (139QMB 139QMA) - 11350150

Power Force GY6 10 inch 40 cm complete motor - PF 10 101 1015

Left crankcase complete Power Force GY6 50 40 cm - PF 14 259 0002

Power Force GY6 139QMB 39 mm aluminum cylinder - PF 10 008 0057

Foot starter shaft crescent 72 mm GY6 4T 50 Moretti - PLKJOY001

Crescent foot starter shaft 7 teeth GY6 4T 50 Moretti - PLKSK4T050POJOY07ZRZ1

Engine gaskets set 4T GY6 80cm3 43cm Moretti - USZMOR005

Crescent bushing 14x18x21mm Moretti - TUL021M14M18MJOY000

Gaskets - set of engine gaskets 400 mm 50cm3 GY6 4T - USZSK4T050POPKPSJOY000

Cylinder gasket GY6 4T 50cm3 Moretti

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Flex Tech Fun 50 4T - Page 4