What should I install next?
- Thread starter Chris7420
- Start date
Well, I got a really good engine with mods. I have a second bike that is more of a commuter. It tops out at about 37 mph. My first build
Try new electrical system, I'm using bbr super magneto and stage 2 Cdi with a car ignition coil 
motorbicycling.com
My super bike :) please take a look
My current build starting with the BBR (Bike Berry Racing engine top to bottom l, Fred Head BikeBerry super magneto coil BikeBerry stage 2 CDI paired with a Pertronix Flamethrower 2 45000 Epoxy Filled 0.6 ohm (more sensitive throttle response, better idle, fasterv start from cold) Standard spark...
motorbicycling.com
Does it make a difference? Did you’re bike go faster after installing those?Try new electrical system, I'm using bbr super magneto and stage 2 Cdi with a car ignition coil
My super bike :) please take a look
My current build starting with the BBR (Bike Berry Racing engine top to bottom l, Fred Head BikeBerry super magneto coil BikeBerry stage 2 CDI paired with a Pertronix Flamethrower 2 45000 Epoxy Filled 0.6 ohm (more sensitive throttle response, better idle, fasterv start from cold) Standard spark...
Did you get a performance increase using that?Try new electrical system, I'm using bbr super magneto and stage 2 Cdi with a car ignition coil
My super bike :) please take a look
My current build starting with the BBR (Bike Berry Racing engine top to bottom l, Fred Head BikeBerry super magneto coil BikeBerry stage 2 CDI paired with a Pertronix Flamethrower 2 45000 Epoxy Filled 0.6 ohm (more sensitive throttle response, better idle, fasterv start from cold) Standard spark...
I ordered a reed valve and am trying to find a window piston, do you know if this will work? It’s says it’s 47mm and has high wrist pin. I know my engine is 47mm bore and type b wrist pin. https://www.ebay.com/itm/402186052573?hash=item5da42823dd:g:PgEAAOSwsvVeHhYAThis is the reed valve that I got:
Pro 2 in1 Racing Reed Valve for 32/40mm Intake 66/80CC Gas Motorized Bicycle | eBay
The Racing Reed Valve Kit -Suitable for 40mm and 32mm Intake - 2 in1 - 66CC/80CC Gas Motorized Bicycle；. Good apply on regular 32mm or 40mm intake cylinder directly. 1 x Reed Valve Kit. It Valve Works Well On Normal Piston and Cylinder,Better performance if works with windowed piston.www.ebay.com
They don't really show you the 4 peddles but they look just like this:
CDHPOWER G2 Racing Reed Valve Kit Block Only - Gas Motorized Bicycle 66cc/80cc | eBay
Reed Block for G-2 reed valve;.www.ebay.com
I also got a windowed piston similar to this:
Motorized bicycle 47mm REED VALVE READY Window Piston for 47mm Cylinder | eBay
Find many great new & used options and get the best deals for Motorized bicycle 47mm REED VALVE READY Window Piston for 47mm Cylinder at the best online prices at eBay! Free shipping for many products!www.ebay.com
I also got one of these larger intakes for it to fit my Mikuni vm18 carb.
CDHPOWER G2 Reed Valve CNC Intake 19mm/21mm/23mm of CDHPOWER G2 Reed Valve Kit | eBay
CDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -19mm. CDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -21mm. CDHpower G2 Reed Intake of CDHpower G2 Reed Valve Kit -23mm. CDHpower G2 Reed Valve cnc Intake.www.ebay.com
That looks like the right one, although I don't know how good those double windowed ones work, I got one with the large window. I guess it would be okay, I'm just saying I've never tried those. I saw this one with the large window but it says 48mm instead of 47mm, I wonder if it's really a different size or maybe a typo.
Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder | eBay
Find many great new & used options and get the best deals for Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder at the best online prices at eBay! Free shipping for many products!
www.ebay.com
You can always get a non windowed piston and just cut your own. Just install the piston and after you get the cylinder on use a sharpie and put it though the intake and mark the piston, then remove the piston and cut it with a Dremel tool.
Does the window piston really make a difference? I got the reed valve got it all installed, I didn’t change jets or anything just bolted on the reed valve it seems to run good how it is maybe a little lean I have to get a new spark plug and run it a little bit so I can read it. It has a little bit more power and it goes 5km faster now at WOT and it doesn’t 4 stroke at all anymore even at WOT which is nice but yea I thought it would get me going a little faster, I want it to 50 km/h without winding out the engine so I can keep up with traffic.That looks like the right one, although I don't know how good those double windowed ones work, I got one with the large window. I guess it would be okay, I'm just saying I've never tried those. I saw this one with the large window but it says 48mm instead of 47mm, I wonder if it's really a different size or maybe a typo.
Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder | eBay
Find many great new & used options and get the best deals for Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder at the best online prices at eBay! Free shipping for many products!www.ebay.com
You can always get a non windowed piston and just cut your own. Just install the piston and after you get the cylinder on use a sharpie and put it though the intake and mark the piston, then remove the piston and cut it with a Dremel tool.
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I think only way is with a carb that has a bigger intake slide/barrel slide hole.. Demintions more air in = more out saying?
Even with reed as my setup is the same carb as Chris 7420 and with 36 tooth gear I only get up to 30mph
Yeah that’s about how fast mine goes topped out. I’m still running a 44t sprocket though.
Can you confirm if it’s the window piston or the better carburetor that got you’re bike going faster?That looks like the right one, although I don't know how good those double windowed ones work, I got one with the large window. I guess it would be okay, I'm just saying I've never tried those. I saw this one with the large window but it says 48mm instead of 47mm, I wonder if it's really a different size or maybe a typo.
Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder | eBay
Find many great new & used options and get the best deals for Motorized bicycle 48mm REED VALVE READY HIGH PIN Piston for 48mm Cylinder at the best online prices at eBay! Free shipping for many products!www.ebay.com
You can always get a non windowed piston and just cut your own. Just install the piston and after you get the cylinder on use a sharpie and put it though the intake and mark the piston, then remove the piston and cut it with a Dremel tool.