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4 Stroke Performance

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new	Full engine rebuild.

proy

184

by GrumpyUnk
Jun 8, 2020 10:01:53 GMT -5

new	Pilot jet size and Hard starting

larryhobman

309

by rehabkymco
Jun 7, 2020 13:30:06 GMT -5

new	Piston crown or dish

GrumpyUnk

283

by petro
Jun 7, 2020 0:18:56 GMT -5

new	atv carb on scooter

benhonda

203

by luchovizzoni
Jun 4, 2020 18:39:57 GMT -5

new	Hello i want to ask about oil

darius823

401

by FrankenMech
May 29, 2020 17:40:10 GMT -5

new	Larger Gear Set Kymco Agility Pages: 1 2

magoconnor

623

by petro
May 25, 2020 14:23:07 GMT -5

new	2.88 gears wont fit Pages: 1 2 3 4 5

golfmech

2,124

by donaldsonta
Apr 28, 2020 12:51:12 GMT -5

new	Hello, i want to ask about fuel in my gy6 100cc

darius823

267

by darius823
Apr 27, 2020 12:31:59 GMT -5

new	Safe Cruising Rpm Pages: 1 2

magoconnor

573

by donaldsonta
Apr 27, 2020 12:29:04 GMT -5

new	Need help on first BBK Pages: 1 2

mikeboogie

565

by mikeboogie
Apr 23, 2020 21:00:18 GMT -5

new

139fmb

magoconnor

131

by magoconnor
Apr 5, 2020 12:18:19 GMT -5

new	Ruckus Clutch and next up grades

Beets

201

by Beets
Mar 28, 2020 20:49:30 GMT -5

new	Automatic choke delete wiring from 139qmb

joelandrew

253

by joelandrew
Mar 25, 2020 22:00:00 GMT -5

new	Automatic choke delete wiring from 139qmb

joelandrew

143

by joelandrew
Mar 24, 2020 11:37:32 GMT -5

new	CDI Restrictor Question

keithw

457

by Zino
Mar 15, 2020 18:40:49 GMT -5

new	Help ID Variator Restrictor Ring

keithw

191

by FrankenMech
Mar 13, 2020 2:14:54 GMT -5

new	2017 tao moped 50cc ..Need more power

w1mellow

330

by Zino
Mar 2, 2020 9:02:30 GMT -5

new	When To Decide To Change Oil To Synthetic

scoot19

163

by jackrides
Feb 26, 2020 20:34:52 GMT -5

new	Optimal Performance Cdi Placement

magoconnor

156

by magoconnor
Feb 24, 2020 16:37:24 GMT -5

new	Scooters To Go -- 50mm High Compression Piston Pages: 1 2 3 4

humanshield

3,083

by smooch
Feb 21, 2020 23:54:21 GMT -5

Board Information & Statistics

4 Stroke Performance

This is the place for info and help related to 49cc 4 stroke performance modifications.

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Total Posts:	14,963

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Shoutbox

Senna1Rossi: Ah, gotcha! Thanks, Fox. Does everyone see the Shoutbox, or just the people who you choose? Feb 16, 2016 12:39:35 GMT -5

Fox: Anyone who is logged in can see it but it's down at the bottom so most have either chosen to ignore it or haven't discovered it yet. Feb 16, 2016 18:42:39 GMT -5

Deleted: Wow, I just found this. I feel smart now, ha ha. Feb 27, 2016 19:24:24 GMT -5

Silar: Ahh.. New feature for a new riding season! YAY! Mar 16, 2016 17:12:34 GMT -5

Silar: Apparently this still is not being used much. hmm.. Mar 17, 2016 13:55:04 GMT -5

180°off: Anyone want to buy a Yamaha 2t that needs a complete rebuild?

Mar 27, 2016 16:00:19 GMT -5

larryhobman: What is the leanest jet size you would try on a 47mm setup, 60cc stock head with a A9 cam Apr 2, 2016 20:17:30 GMT -5

180°off: Hello anybody Apr 5, 2016 12:16:32 GMT -5

renagade281: Shout, Shout, let it all out!!!! Apr 7, 2016 15:05:49 GMT -5

gsx600racer: These are the things I can do without, Come on I'm talking to you, Come on Apr 9, 2016 0:13:14 GMT -5

180°off: What's up with this shout box? Nobody uses it! Apr 14, 2016 20:29:01 GMT -5

renagade281: DEEEEEEZ NUTZZZZZZZZZ Apr 15, 2016 15:29:55 GMT -5

tsimi: BANZAAAAAAI! Apr 20, 2016 8:57:04 GMT -5

Deleted: ARE WE SUPPOSED TO TYPE LIKE THIS IN THE SHOUT BOX? Apr 20, 2016 18:55:55 GMT -5

tsimi: JUST BECAUSE YOU'RE TRASH DOESN'T MEAN YOU CAN'T DO GREAT THINGS. IT'S CALLED GARBAGE CAN AND NOT GARBAGE CANNOT. May 9, 2016 5:53:53 GMT -5

Senna1Rossi: Where do you guys order Dr. Pulley sliders? I need 21x17 13grams. Is PartsforScooters.com a good place?? May 16, 2016 13:25:41 GMT -5

renagade281: order them from www.MrDeez.com May 21, 2016 11:53:50 GMT -5

Senna1Rossi: Thanks renagade281! May 23, 2016 14:59:12 GMT -5

Fox: I don't really know how to say this but straight. I am Dave's Girlfriend Kellilee and bluntly and VERY SADLY he passed away early Tuesday morning. I know he would want ya all to know this. Thank You Brent for befriending my love he was very happy on here! Jun 18, 2016 16:26:04 GMT -5

Fox: www.gofundme.com/29mgf6b8 I hope it is ok to pass on his gofundme page link. If not you will un-post it I'm sure. Thanks again all!! Jun 18, 2016 16:31:18 GMT -5