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150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

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  #1  
Old 06-19-2016, 05:26 AM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
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Default Crossfire 150r stroker or swap to 250 doch efi?

Ok so i sold my favorite crossfire but got 700 cash but i already miss my baby So i got a couple of ideers floating around.....

1. 62mm extended cylinder, +6mm crank, big valve head, a12/a11 cam. But im scared to build up an internal reverse motor cause one of my 150r's reverse is already slipping even with no cable attached. ( any help on that would be nice)

2. I have a 08 xpeed 250i scooter with 7000 miles that seems to run good. It has a 250cc 25hp 4v efi motor that looks just like a gy6 150 just bigger. I think it would be an awesome power plant but....wiring....i hate wiring and id have to figure out what i need to keep and what i could discard to keep from having just a wad of wires everywhere. Also cant really find any info on the motor other than specs and its korean made. Also have to figure out reverse.....put reverse on my crossfire and cant live without it now.

3. Can get a honda cm 450 complete bike for 150 bucks.....Would rather have a 400/450 hondamatic tho. Also need reverse.

This build is happening asap. So any and all opinions and help will be greatly appreciated.

I miss my baby...next one has be even more bad ass.
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  #2  
Old 06-24-2016, 04:08 AM
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Default

Forums must be dead nowadays.
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Crossfire 250r IRS (400cc swap in progress)
Crossfire 250r (SYM 250)
HH250SS..RIP (IRS donor for the crossfire)
HammerHead 150
Gs Moon buggy 150
Many other random parts buggys (still never have what im needing tho :/ )
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  #3  
Old 06-24-2016, 04:15 PM
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jmansracerocket jmansracerocket is offline
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Default

you cant do a stroker crank with an internal gy6 engine.
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Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust.



Blade Single Seater Restore
welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
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  #4  
Old 06-24-2016, 07:13 PM
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Thx thats good to know. Ive got several howits and a couple of HH motors
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Buggy Dealer
Crossfire 250r IRS (400cc swap in progress)
Crossfire 250r (SYM 250)
HH250SS..RIP (IRS donor for the crossfire)
HammerHead 150
Gs Moon buggy 150
Many other random parts buggys (still never have what im needing tho :/ )
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  #5  
Old 06-24-2016, 07:24 PM
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jmansracerocket jmansracerocket is offline
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Quote:
Originally Posted by BEEFKING69 View Post
Thx thats good to know. Ive got several howits and a couple of HH motors
Well there u go, as long as they have external reverse ur set. I wouldn't really recommend the 6.6 stroker with such thin sidewalls but that's me and has been discussed alot.
__________________
Hammer head Single seater know as herbie
under construction

Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust.



Blade Single Seater Restore
welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
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