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80cc motorized bicycle performance mods - part 1 - Free mods!

  Рет қаралды 3,672

Safety Uggs

Safety Uggs

Күн бұрын

Пікірлер: 27
@DG-fe4ht
@DG-fe4ht 10 ай бұрын
First video ever to put a motorized bike on a dyno! Great job mate.
@SafetyUggs
@SafetyUggs 10 ай бұрын
I think 2strokestuffing beat me to it by a few years, it was a custom made bike dyno and not a chassis dyno but it definitely inspired all this
@JunkyTube
@JunkyTube 10 ай бұрын
Wow unbelievable I love this so glad your doing tests like this very rare to see and I love it!
@patrickbodine1300
@patrickbodine1300 11 ай бұрын
That chain...
@otisrush8110
@otisrush8110 11 ай бұрын
😮🤦
@Op1zilla
@Op1zilla Жыл бұрын
👽👍🏻✨
@dog-dx9pd
@dog-dx9pd 11 ай бұрын
Thanx fer da vids, mate...
@Jarrod_D
@Jarrod_D 11 ай бұрын
Thanks for the video 😁👍
@vm3796
@vm3796 11 ай бұрын
Great video! Waiting for other parts !
@OrneryMouse
@OrneryMouse 10 ай бұрын
Here’s my formula: 1) Levelled carb, perfectly straight engine, sprockets and chain 2) Completely gut the muffler and drill holes in the cap. Lengthen header to 9” by attaching a piece of handlebar with twisted wire and cuttings from a tuna can (or spend money and use rad hose and pipe clamps) 3) Port match all manifolds, trim top of exhaust port by 1.5mm and bottom of intake by 1mm 4) Tune carb accordingly - raise or lower float arms, needle up or down, air filter cover on or off, change it’s shape or remove entirely Right there you’re pushing out enough horsepower to hit 45mph+ with a 36 tooth sprocket, and zero dollars spent. But you never can tell with these engines, I built one for my friend a while ago that will go over 38mph and it’s completely bone stock, running a 44 tooth sprocket.... and he weighs 240lbs! Conversely, I’ve had a one that needed all kinds of tuning just to go 35mph.
@SafetyUggs
@SafetyUggs 10 ай бұрын
We did test some porting, raised the exhaust 1mm, widened it 1.5mm on each side. We lost a lot of low end power, didn't gain any peak and only increased the max RPM by 200rpm or so. With how much it lost down low, It really wasn't worth porting. All engines will respond differently as you say. I'll be trying some porting on the new BT engine. I'm currently making a pipe for it
@skipstalforce
@skipstalforce 11 ай бұрын
Thanks for the research!
@Eduardo_Espinoza
@Eduardo_Espinoza 3 ай бұрын
Awesome series subbed :)
@SafetyUggs
@SafetyUggs 3 ай бұрын
Thanks!
@mattjones8016
@mattjones8016 Жыл бұрын
Just got one my self
@leonardarola
@leonardarola 10 ай бұрын
You gonna love AND hate it at the same time.
@mattjones8016
@mattjones8016 10 ай бұрын
@@leonardarola I already do. I can't get chain guidance right bc I have a weird frame. So the chain pops all the time
@jmrides777
@jmrides777 10 ай бұрын
Another great vid....sheesh I'm going to have to subscribe....with notification bell turned on😎
@leonardarola
@leonardarola 10 ай бұрын
You got a freaking dyno?! Thanks for sharing.
@smokinamby
@smokinamby 11 ай бұрын
There's a small amount of play in the magneto. Without grinding the keyway, you should be able to loosen the nut and turn the magneto either way a few degrees. Retarding usually benefits these unmodded sub 6k rpm motors, advancing is better for the highly modified motors that do 10-15k rpms. Please dyno both directions with your build, please.
@SafetyUggs
@SafetyUggs 11 ай бұрын
Great idea! Should I do the test with the stock carb and exhaust?
@TheJeremy5599
@TheJeremy5599 8 ай бұрын
Adjusting the magneto does nothing but placebo. The ignition system doesn't spark at a set crank angle Moreso at a inducter charge level. If you want to adjust timing then get a ecu!
@dog-dx9pd
@dog-dx9pd 11 ай бұрын
Ow bout some cylinder to engine block porting, mate? Just match it up to even out flow...
@SafetyUggs
@SafetyUggs 11 ай бұрын
I've already done a bit of testing by shimming the cylinder to raise all 3 ports (video out soon), and I have 3 new cylinders here for porting and testing.
@ericrodgers9831
@ericrodgers9831 7 ай бұрын
Chain needs a way better tensioner!
@adamsmy8121
@adamsmy8121 7 ай бұрын
I cant find the video that you tested those parts im curious about the hp carburetor
@fletcherjacobs3688
@fletcherjacobs3688 7 ай бұрын
Whoooooa. Ya didn’t port match the intake gasket.
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