bore & stroke

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shiftless Non-Com SFC Indy, IN, 2nd DIV, So. Symperthisers Twist n Go ! Posts: 177	bore & stroke Mar 10, 2010 14:57:25 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by shiftless on Mar 10, 2010 14:57:25 GMT -5 Does anyone know the stroke in mm for a stock QMJ ?? I'm trying to determine the actual displacement of my 61mm engine TIA

Rebel Administrator Posts: 6,912	bore & stroke Mar 10, 2010 15:17:54 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Rebel on Mar 10, 2010 15:17:54 GMT -5 standard bore is 57.4mm standard stroke is 58.00mm here is a link to a page with a calculator for you to figure out the new displacement; (169.5cc) www.buggydepot.com/buggy-tech-center/150cc/Yerf-Dog-Blade-GY6-Buggies-Parts/16
	owners and service manuals posting a photo

shiftless Non-Com SFC Indy, IN, 2nd DIV, So. Symperthisers Twist n Go ! Posts: 177	bore & stroke Mar 10, 2010 15:37:21 GMT -5 Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by shiftless on Mar 10, 2010 15:37:21 GMT -5 ^^^^^ Thank you sir ^^^^^

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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:

Mar 28, 2013 17:57:00 GMT -5

rapidjim: Wake up LOL Apr 2, 2013 16:24:38 GMT -5

bore & stroke

Post by shiftless on Mar 10, 2010 14:57:25 GMT -5

Post by Rebel on Mar 10, 2010 15:17:54 GMT -5

Post by shiftless on Mar 10, 2010 15:37:21 GMT -5

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