Lookin' for an MBK 51 Bottom End...

I'm lookin' for an MBK 51 Bottom end for my Motobecane 50v... I know someone out there is orderin' stuff from france...

Shoot me an email, or reply to teh post or w/e....

I want to discuss what I need to do to get a reed-valve bottom end for my bike!

Any info would be grand!

Thanks a bunch,

-Casey

Re: Lookin' for an MBK 51 Bottom End...

🇮🇹💦 Of the Loin /

I have a set of cases, no bolts or gasket for putting them together however

Re: Lookin' for an MBK 51 Bottom End...

Hrm... any idea regarding what else I would need to get to make it complete? is the crank / other internals identical to the 50v bottom end?

Re: Lookin' for an MBK 51 Bottom End...

I've got a 70cc Jug, piston, and reedvalve already... gaskets as well i believe...

Re: Lookin' for an MBK 51 Bottom End...

🇮🇹💦 Of the Loin /

youd need metric bolts and a gasket to put it together

also a reed valve and intake setup

also....a crank and magneto.

or just wait for months until somebody from ebay france will ship

Re: Lookin' for an MBK 51 Bottom End...

would I be able to donate parts from my current 50v engine? or are the mbk versions different? I've got alla that stuff if they are donor'able

Re: Lookin' for an MBK 51 Bottom End...

the hardware(brackets) and case bolts are different, and the stock variator hits the case unless you grind down the fixed pulley side. The different brackets means no tension spring hookup, so you'd have to figure out something else.

Re: Lookin' for an MBK 51 Bottom End...

And, obviously, you'd need a new cylinder, intake and reeds. The crank, magneto, piston and head would all swap over.

Re: Lookin' for an MBK 51 Bottom End...

word. Yeah I've got a 70cc MBK cylinder kit (w/ piston and reeds)

SO basically.. I just need a complete bottom-end...

Any easier way to get a hold of one of these, other than french ebay? Any group-buys or anything goin' down?

I've talked w/ a couple different sights that're willing to ship... but damn that crap's pricey...

Re: Lookin' for an MBK 51 Bottom End...

Bump.

Anyone got anything near complete?

-Casey

Re: Lookin' for an MBK 51 Bottom End...

🇮🇹💦 Of the Loin /

how do you have a 70cc kit but no av10 engine?

did you mistakenly order it?

just curious, what kind is it?

Re: Lookin' for an MBK 51 Bottom End...

yeah, I did about 2 years ago from 50cc.nl... So it's just been sittin' in my room for... forever... it's an airsal I believe w/ a nice carbon reedvalve if i'm not mistaken.

-Casey

Re: Lookin' for an MBK 51 Bottom End...

bump-diggity....

Maybe I'll sell my bike... ^^

Re: Lookin' for an MBK 51 Bottom End...

Any luck finding the AV-10 motor? I think i just bought a 50v for $150...

Re: Lookin' for an MBK 51 Bottom End...

No dice yet mang, if I get a good hook, i'll pass on the word!

-Casey

Re: Lookin' for an MBK 51 Bottom End...

Sweet, I'll let you know if i pick up this 50V

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