139qmb big bore kit instructions -

[@thecoolkid1208]

I dig the KZbin cover pic on the background 🤙🏽

[@scooterarmy]

Glad you like it!

[@perlidberg7351]

Thanks for the information about the pins in the cylinder head when installing the camshaft and bridge. I had forgotten about it since I disassembled it.

[@scooterarmy]

@@perlidberg7351 yep, absolutely necessary, don't leave those out!

[@Scooter-q2s]

Those 52 mm kits rip when dialed in right 👍

[@scooterrehab6295]

I really need to get my SA88 build going I've been swamped with side gigs lately.

[@scooterarmy]

Make that money man

[@ScooterMods]

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]

@@ScooterMods 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?

[@ScooterMods]

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?

[@thelagmeister]

I did the same thing on my first 50cc. I never fished it out and It never had a problem. I'm glad you got yours out though.

[@staceythorpe9419]

Dam that kit looks amazing…and dnt look cheap and cruddy compared to others on the market..

[@scooterarmy]

Appreciate that.

[@scooterarmy]

Get one here, www.scooterarmymostlyofficial.com/product/sa88 , also available on ebay.

[@seanmayo206]

Them dam cir clips done got 2 of my cylinders. Question? Can the a9 cam work on 64mm valves as long as bridge is for 64mm

[@loserkid9973]

How many cc is the bbk?

[@scooterarmy]

52mm = 88cc , usually falsely listed as 105 or 120 cc.. biggest topend you can get for 139qmb.

[@scooterarmy]

Www.scooterarmymostlyofficial.com for more information

[@KikoBach94]

Nice video!!!

[@scooterarmy]

Appreciate that!

[@perlidberg7351]

Thanks for the tip with cardboard. Good work. I know that original carburetors can be used, but which carburetor is best? /Per Lidberg Sweden

[@scooterarmy]

@@perlidberg7351 glad it helped.. a lot of guys go with the 24mm cvk used on the 150s

[@perlidberg7351]

@@scooterarmy Thanks. I've ordered one from Amazon now, it'll be interesting. Merry Christmas to you all

[@KevinHernandez-hz6kj]

Chrome bore or steel bore?

[@КитайГуд-ц3ш]

Good video, are you sending this set to Russia?

[@scooterarmy]

Unfortunately the shipping cost is nearly the same as the kit cost to send to russia

[@seanmayo206]

I want the 51mm piston. Let's go

[@scooterarmy]

There is no 51mm

[@JeffreyDjRTBEdwards]

Is that 52 mm a drop in bbk or did it require modification?

[@scooterarmy]

Drop in kit.. no case boring required.

[@dantickle5562]

What's the valve gaps

[@scooterarmy]

Spec is .003 to .005 inches, I run .003.