QMB139 Engine - Biggest Bore Kit?

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QMB139 Engine - Biggest Bore Kit? by: stombaugh - Sept 17, 2014 17:00:11 GMT -5

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Post by stombaugh on Sept 17, 2014 17:00:11 GMT -5

I currently have a Perf. Head & Piston installed on my scoot. Piston is 44mm. Looking around it seems that it's difficult to find pistons that are bigger and heads to accomodate the big piston.

If anyone can point me in the right direction that'd be great!

Thanks.

alleyoop PM alleyoop alleyoop's Posts alleyoop's Threads Senior Rider Currently Offline Founding Member NO SLUG PST150H TRIKE..62mm 60mmStroker crank 16/37 gears Posts: 4,848 Likes: 327 Joined: Feb 19, 2013 11:27:56 GMT -5	QMB139 Engine - Biggest Bore Kit? by: alleyoop - Sept 17, 2014 17:03:41 GMT -5 Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by alleyoop on Sept 17, 2014 17:03:41 GMT -5 Pick your potion they are all over the place: Alleyoop www.google.com/#q=139qmb+big+bore+kit+review
	Last Edit: Sept 17, 2014 17:04:01 GMT -5 by alleyoop ...BAD TO THE BONE.. PST150H 62mm BBK, 60mm Crank, 16/37 Tranny Gears..MOW-POWER WATCH OUT...THOSE WHO DO NOT KNOW, DO NOT KNOW THAT THEY DO NOT KNOW

stombaugh PM stombaugh stombaugh's Posts stombaugh's Threads New Rider Currently Offline Posts: 8 Likes: 0 Joined: May 28, 2014 21:14:16 GMT -5	QMB139 Engine - Biggest Bore Kit? by: stombaugh - Sept 17, 2014 17:10:21 GMT -5 Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by stombaugh on Sept 17, 2014 17:10:21 GMT -5 So, looking further it looks like a 52mm piston is about the biggest I can go? does that sound about right?

alleyoop PM alleyoop alleyoop's Posts alleyoop's Threads Senior Rider Currently Offline Founding Member NO SLUG PST150H TRIKE..62mm 60mmStroker crank 16/37 gears Posts: 4,848 Likes: 327 Joined: Feb 19, 2013 11:27:56 GMT -5	QMB139 Engine - Biggest Bore Kit? by: alleyoop - Sept 17, 2014 17:19:10 GMT -5 Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by alleyoop on Sept 17, 2014 17:19:10 GMT -5 yes that's about it.
	...BAD TO THE BONE.. PST150H 62mm BBK, 60mm Crank, 16/37 Tranny Gears..MOW-POWER WATCH OUT...THOSE WHO DO NOT KNOW, DO NOT KNOW THAT THEY DO NOT KNOW

stombaugh PM stombaugh stombaugh's Posts stombaugh's Threads New Rider Currently Offline Posts: 8 Likes: 0 Joined: May 28, 2014 21:14:16 GMT -5	QMB139 Engine - Biggest Bore Kit? by: stombaugh - Sept 17, 2014 17:37:07 GMT -5 via the ProBoards App Reply Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by stombaugh on Sept 17, 2014 17:37:07 GMT -5 Ok, well is there any engine that can go bigger than a 52mm piston? And that mounts identical as the QMB139 engine?

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QMB139 Engine - Biggest Bore Kit? by: millsc - Sept 18, 2014 20:03:47 GMT -5 via mobile

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Post by millsc on Sept 18, 2014 20:03:47 GMT -5

No 52mm is the biggest

Gomoto ballistic taida 61mm big bore kit 3mm stroker 177cc ncy performance manifold flywheel scoop and hipro fan hipro coil koso variator 118mm racing drive face a12 cam Buford ported head ban jing clutch bell 15 gram sliders 1.5k torque spring ngk irridium spark plug dc cosoli cdi oml coil uni filter p&p exhaust performance clutch 1k clutch springs 26mm cvk carb 842- 20 -30 gates belt shark stereo 230cca battery taida starter pirelli sl26 tires taida starter clutch 17/36 gears

QMB139 Engine - Biggest Bore Kit? By stombaugh (Read 980 times)

Post by stombaugh on Sept 17, 2014 17:00:11 GMT -5

Post by alleyoop on Sept 17, 2014 17:03:41 GMT -5

Post by stombaugh on Sept 17, 2014 17:10:21 GMT -5

Post by alleyoop on Sept 17, 2014 17:19:10 GMT -5

Post by stombaugh on Sept 17, 2014 17:37:07 GMT -5

Post by millsc on Sept 18, 2014 20:03:47 GMT -5

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