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Motorcycle cylinders and cylinder heads
Junak 122 125

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2025-05-23, 12:25

poland

Luboš

Cylinder 150 cm3 pin 13 mm Zetka Junak 122

mounted to honda xr125l, only need to grind the crankcases / turn the cylinder on the lathe to fit the crankcases, because the cylinder skirt has a larger diameter than the crankcases will fit. The cylinder fits nicely, it runs, you can already see the power furniture in the lower revs. The piston knocks, the piston knocks, it's not the valves or anything, it's the piston. Because the clearance between the piston and the cylinder is too big. It's generally supposed to be around 5 hundredths of a millimeter, but I measured 33 hundredths from the bottom of the piston and 63 hundredths from the top of the piston. The piston is hard to find, I found one here on the eshop, so I just pray it comes and has the right dimensions, that mine in the kit was just a dud...

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2017-12-04, 20:44

poland

Sebastian

Cylinder head complete 125cc Zetka Junak 122

Barton Tz 125 '15. Replacing the head after the exhaust valve broke off. The head purchased from gmoto fit without a problem, made without glaring imperfections, decent for cheap Chinese parts. However, it is definitely lighter than the original head - probably a less solid casting. Threads for exhaust pins m6 vs m8 in the original one. In any case, it fits, works, looks aesthetically pleasing.

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2025-01-03, 10:26

poland

GINES

Complete cylinder 62mm engine 162FMJ

Cylinder compatible with honda clr 125 cityfly engine. I bought this cylinder to increase the displacement of my 125 bike with some doubts about the measures, but that were cleared as soon as I put the cylinder in the engine, is a plug & play cylinder piston and gaskets perfect cylinder head and crankshaft preserving original. Thanks for the attention received.

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2018-05-28, 21:09

poland

przemysław

Cylinder + head tuning 150cc Zetka Junak 122

I am an owner of a romet z125 motorcycle after the courier shipment arrived I was excited about what performance my motorcycle could achieve the head and the rest of the components were well made the performance has increased significantly I recommend the product and encourage you to buy it

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2018-02-05, 02:05

poland

Andrzej

Cylinder head complete 150cc Zetka Junak 122

The head installed in a Romeet ZXT-125.The product exemplary workmanship and fit. It is mandatory to reach the valves with valve paste because their tightness raised concerns. I recommend this head because it is really worth it.

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2019-05-06, 11:09

poland

Mateusz

Cylinder + head tuning 150cc Zetka Junak 122

I have a Romet 125 I bought this kit to put on a larger capacity, I'm not a mechanic I managed it myself it took me 30 minutes, I'm satisfied with the quality of the material better than the original I recommend to everyone

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2016-09-26, 22:01

poland

Paweł

Cylinder + head tuning 150cc Zetka Junak 122

Cylinder, cylinder head, piston, rings, only the valve keypad is loose, besides that at the beginning it was so stuck that it was difficult to move it, put away and bought a new one.

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2015-09-05, 10:26

poland

Majster

Cylinder tuning 150cm3 Zetka Junak 122

Full kit. Includes everything needed for replacement. Surprisingly well made.

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2016-06-25, 10:20

poland

Valentin

Cylinder + head tuning 150cc Zetka Junak 122

Všetko došlo v najlepšom poriadku. Doporučujem.

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2016-05-28, 07:37

poland

Mariusz

Cylinder head complete 150cc Zetka Junak 122

Everything works without any problems. I recommend

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2016-06-30, 13:15

poland

Valentin

Cylinder + head tuning 150cc Zetka Junak 122

Aprilia RX 50 tuning to 90, year 1997

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