50>72cc, a GREAT tutorial by GTVert

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kliff
Revolutionary Commander

Sargeant Major, there is only 1

"... I still ain't got a clue...."

Posts: 676

50>72cc, a GREAT tutorial by GTVert Jul 22, 2009 4:37:36 GMT -5

Quote

Post by kliff on Jul 22, 2009 4:37:36 GMT -5

www.49ccscoot.com/bbk.html

This is one of the most often asked questions about scooters. How do I do the 50 > 72cc conversion. And even though we aren't gonna clutter the place up with stickies, this link NEEDS to be right out here in front where it can be seen, and is not lost in a myriad of other 50cc tips and tricks....this is the grass roots of hot roddin' a scooter.

Thanks Vert....well done dude!

Kliff

shadetreeairguns.proboards.com/index.cgi

90GTVert Global Moderator Fat Ghost Rider Posts: 601	50>72cc, a GREAT tutorial by GTVert Jul 22, 2009 6:57:55 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 90GTVert on Jul 22, 2009 6:57:55 GMT -5 Glad to help. I was kinda amazed no one had done this before.
	Brent 103cc Vento Triton 2T : 72MPH 103cc Vento Triton 2T : 70MPH 96cc Keeway Venus 2T : 61MPH 49ccScoot.Com

Enviromoto Lt. SFC Indy, IN, DIV, So. Symperthisers, 139QMB Directorate of HP Enviromoto.com Posts: 331	50>72cc, a GREAT tutorial by GTVert Jul 22, 2009 9:26:07 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Enviromoto on Jul 22, 2009 9:26:07 GMT -5 Yes Brent you did a fantastic job, I really like the part about ring gap I even learned something. I guess it goes to show how new all this stuff really is.
	10% Member Discount Code "ScooterReble"

Rebel
Administrator

Posts: 6,912

50>72cc, a GREAT tutorial by GTVert Jul 22, 2009 11:51:30 GMT -5

Quote

Post by Rebel on Jul 22, 2009 11:51:30 GMT -5

No problem, GTVert does such good work on tutorials he should make a living at technical writing.

You can see that a new thread has been stickied. In the future we can add a link to anything that should be stickied in that post, we will try to keep them organized and easily found there. Of course a mod will have to edit the post to do it.

Last Edit: Jul 22, 2009 11:53:35 GMT -5 by Rebel

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jct842 Guest	50>72cc, a GREAT tutorial by GTVert Jul 22, 2009 22:51:19 GMT -5 Quote Select Post Deselect Post Link to Post Back to Top Post by jct842 on Jul 22, 2009 22:51:19 GMT -5 very good tutorial. I will probably never get a 50 but who really knows. as it was said a 150 is pretty much identical and I have an idea in another month or so I will be ready to build a big bore 150. John

90GTVert Global Moderator Fat Ghost Rider Posts: 601	50>72cc, a GREAT tutorial by GTVert Jul 24, 2009 6:51:28 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by 90GTVert on Jul 24, 2009 6:51:28 GMT -5 I did a 155cc big bore kit a couple days after doing my 72cc. Same deal. I didn't bother to write another tutorial because it was basically identical, just larger parts.
	Last Edit: Jul 24, 2009 7:47:40 GMT -5 by 90GTVert Brent 103cc Vento Triton 2T : 72MPH 103cc Vento Triton 2T : 70MPH 96cc Keeway Venus 2T : 61MPH 49ccScoot.Com

rapidjim Non-Com Posts: 93	50>72cc, a GREAT tutorial by GTVert Aug 21, 2009 8:09:13 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by rapidjim on Aug 21, 2009 8:09:13 GMT -5 Excellant tutorial!!!!
	Support/Sales 715-825-3710 Authorized Roketa & Ice Bear Dealer. Trikes and Scooters We Dropship or Visit our B&M store in Milltown, Wi Parts Available Call!! New Website www.rapidrepairpowersports.com or click on banner

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Shoutbox

terrilee: dude i dont know if you like praise, but i know of 100's of people who would like to shake your hand Jan 29, 2013 9:29:44 GMT -5

Rebel: Yeah, Brent is excellent at publishing technical data Jan 29, 2013 15:22:31 GMT -5

cloud: hows it going Rebels, looks like the warm scooter riding season is getting closer, thank goodness LOL

Feb 12, 2013 18:43:22 GMT -5

gy6forlife: Hello, Feb 16, 2013 16:30:47 GMT -5

gy6forlife: I am jason from Noblesville out in the corn fields and I am having a hell of a time getting my VIP 2007 W/A BBK TO PULL RPMS WITH ME ON IT,IT RAN LIKE A TOP FOR OVER 3 YEARS AND 12k MILE B 4 THE ISSUES STARTED AT THE CAR WASH,NOW THAT I HAVE IT BACK UP AND Feb 16, 2013 16:33:12 GMT -5

gy6forlife: TRANSPROTATION FOR ME TO GET TO WORK AND MAKE MONEY?i HAVE ALL THE AFTERMARKET STUFF ON THE SHELF TO INSTALL BUT NOT TILL i GET THE WEAK PERFORMANCE OUT OF IT?PLEASE HELP MAN,THANKS FOR ANY INPUT YOU HAVE,AS YOU SEEM TO KNOW A TON ABOUT THESE ENGINES AND V Feb 16, 2013 16:55:25 GMT -5

gy6forlife: VARIATORS AND SLIDERS AS I HAVE THEM ALL READY TO INSTALL BUT DONT WANT TO TILL IT IS RUNNING WELL AGAIN?I AM NEW TO THIS ,I TOOK IT TO THE CAR WASH,BIG MISTAKE,AND BURT UP STATOR,NOW RUNNING AGAIN,AND W/BBK 80CC VERSION FROM SCRAPPY?IT STARTS AND RUNS GRE Feb 16, 2013 16:57:34 GMT -5

gy6forlife: GREAT ON STAND,ON THE WHEELS IT WONT GO PAST 20MPH?i TRIED THE #85/#35 JETS IT JUST STUMBLED AT ALL INTERVALS?i NEED THIS TO GET TO WORK MAN,IF YOU HAVE ANY THING TO INPUT,I THANK YOU FOR YOUR INPUT AND TIME,GY6FORLIFE,JASON Feb 16, 2013 16:59:33 GMT -5

gy6forlife: IT NOW HAS THE STOCK JETS AND IT RUNS GOOD ON THE KICK STAND AND UNTILL I TRY TO RIDE IT ,IT IS A TOTAL DOG SHIET MAN,i DONT KNOW WHAT ELSE TO DO MAN?PLEASE HELPME?YU ARE A PRO AND MAY KNOW HNOW TO FIX IT? Feb 16, 2013 17:01:27 GMT -5

gy6forlife: I HAVE SET A SIDE A koso PERFORMANCE VARIARTOR AND REAR LARGE/AND 3 SMALLER SPRINGS TO INSTALL ONCE i GET IT RUNNING CORRECTLY,BUT i PUT IT BACK TO STOCK TO START AT A KNOWN POINT?? EVEN THE CARB AND,i DID DO SOME PORTING TO THE HEAD JUST TO CLEAN UP THE C Feb 16, 2013 17:06:42 GMT -5

gy6forlife: AS I BOUGHT ALL THE PERFORMANCE ,CDI,COIL,SLIDERS,GATES BELT,REAR 4 YELLOW SPRINGS AND I HAVE PULLED ALL THAT OUT AND PUT BACK TO STOCK,TO START FROM NORMAL CONDITIONS":

CAN YOU HELP ME OUT MAN,AS i LOST ME JOB DUE TO NOT BEING ABLE TO GET THERE?ANY INF Feb 16, 2013 17:12:17 GMT -5

gy6forlife: ANY INFO IS GREATLY APPRECIATED AND NEEDED MAN?THANKS FOR YOUR TIME AND UNDERSTANDING.Jason/GY6FOR LIFE ,ITS ALL BACK TO STOCK BUT THE BBK"SO IF YOU CAN i WILL BE OF GREAT UNDERSTANDING AND APPRECIATE ANY INFO ON WHAT TO DO:? Feb 16, 2013 17:15:58 GMT -5

pumacyclessteve: the gy6 150 engine needs to have the oil changed more than most other scooters .the simple fact that the metalergy and the alloys are not the highest grade like the high end scooters .the errosoin and general wear down of the internal components.is slowe Mar 1, 2013 18:51:10 GMT -5

pumacyclessteve: but i have a 150 that i ride hard i mean hard thats 5 years old and still runs like a bad as whith a power pros custom one off exhaust and a big valve head .i will wheelie at most every intersection just out pure confidence in my one trick pony.stay Mar 1, 2013 19:04:53 GMT -5

Rebel: Yes. Mar 2, 2013 18:49:26 GMT -5

mukradio: Help! I am working on a 50 cc that I can't get it to idle properly. It's starts off way too high and when it warms up, it dies. It's driving me nuts and it's a short trip! Any ideas? I have disassembled the carb and cleaned it, drained and replaced gas. Mar 7, 2013 15:41:53 GMT -5

westonpersons: Adjust your valves to .006". There should be easy directions on youtube, otherwise just remove the valve cover and turn the flywheel so the engine is at top dead center, then adjust the 'taps' on the cam holder for the .006" gap. Mar 8, 2013 15:02:33 GMT -5

mr cool guy dude: hi every body.......bananas Mar 28, 2013 17:55:49 GMT -5

mr cool guy dude: