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139qmb big bore kit instructions -  

#scooterarmy
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Step 2 -
Installation
Detailed installation of 139qmb big bore kit.
I'm going to show you in detail how to install a 139qmb big bore kit.
If you want to maximize the power and speed of your gy6 50cc 139qmb scooter this big bore kit has the largest displacement, largest valves and ports and is the highest quality kit available for the money.
- #SA88 -
52mm Domed Piston
52mm Bore
23mm Intake Valve
20mm Exhaust Valve
64mm Valves
Useful for the installation of any 139qmb big bore kit

Опубликовано:

 

28 сен 2024

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Комментарии : 26   
@thecoolkid1208
@thecoolkid1208 7 месяцев назад
I dig the RU-vid cover pic on the background 🤙🏽
@scooterarmy
@scooterarmy 7 месяцев назад
Glad you like it!
@Scooter-q2s
@Scooter-q2s Месяц назад
Those 52 mm kits rip when dialed in right 👍
@scooterrehab6295
@scooterrehab6295 6 месяцев назад
I really need to get my SA88 build going I've been swamped with side gigs lately.
@scooterarmy
@scooterarmy 6 месяцев назад
Make that money man
@donnieleffingwell1412
@donnieleffingwell1412 Месяц назад
Quick question, my valve adjustment nuts and 1 stem recently backed off the rocker assembly ... it fell down into the bottom of crankcase.. What should I do? And would it cause harm down there if I leave it in the oil? I tried draining it and fishing it out. I can find anything there I didn't see it come out in pan when I did the oil.. Can you give me some advice on what to do here? And the severity of the outcomes? If it can make it's way back up?
@scooterarmy
@scooterarmy Месяц назад
@@donnieleffingwell1412 well. If it went down with the chain and just made it's way to the case bottom it may be ok. Hard to say. 5heres a potential of damage. What was it, the nut?
@donnieleffingwell1412
@donnieleffingwell1412 10 дней назад
It was I ended up turning the bike completely upright and getting it with a magnet.. I'm looking for one of your kits? Any chance you have any in stock soon?
@KikoBach94
@KikoBach94 7 месяцев назад
Nice video!!!
@scooterarmy
@scooterarmy 7 месяцев назад
Appreciate that!
@JeffreyDjRTBEdwards
@JeffreyDjRTBEdwards 4 месяца назад
Is that 52 mm a drop in bbk or did it require modification?
@scooterarmy
@scooterarmy 4 месяца назад
Drop in kit.. no case boring required.
@KevinHernandez-hz6kj
@KevinHernandez-hz6kj 5 месяцев назад
Chrome bore or steel bore?
@dantickle5562
@dantickle5562 5 месяцев назад
What's the valve gaps
@scooterarmy
@scooterarmy 5 месяцев назад
Spec is .003 to .005 inches, I run .003.
@loserkid9973
@loserkid9973 7 месяцев назад
How many cc is the bbk?
@scooterarmy
@scooterarmy 7 месяцев назад
52mm = 88cc , usually falsely listed as 105 or 120 cc.. biggest topend you can get for 139qmb.
@scooterarmy
@scooterarmy 7 месяцев назад
Www.scooterarmymostlyofficial.com for more information
@КитайГуд-ц3ш
@КитайГуд-ц3ш 7 месяцев назад
Good video, are you sending this set to Russia?
@scooterarmy
@scooterarmy 7 месяцев назад
Unfortunately the shipping cost is nearly the same as the kit cost to send to russia
@staceythorpe9419
@staceythorpe9419 7 месяцев назад
Dam that kit looks amazing…and dnt look cheap and cruddy compared to others on the market..
@scooterarmy
@scooterarmy 6 месяцев назад
Appreciate that.
@scooterarmy
@scooterarmy 6 месяцев назад
Get one here, www.scooterarmymostlyofficial.com/product/sa88 , also available on ebay.
@seanmayo206
@seanmayo206 4 месяца назад
I want the 51mm piston. Let's go
@scooterarmy
@scooterarmy 4 месяца назад
There is no 51mm
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