Porting 70cc Minarelli for Best Performance! | Motorized Bike

[@justanothermotorizedbikech5138]

Man that’s too bad. Excited for the next build!!

[@JMB676]

@21:30 I love how it just blew up and you say I need to go home something is wrong and then thirty seconds later you have it pinned again. I think you and I could be friends lol.

[@trentbikes]

Haha yeah I had a feeling it was already done so no point trying to save it by walking home back or something.

[@Chopperking1977]

Man love the content!!! Keep doing what u love.

[@HansTheilLuiz]

That was wild! could not believe it could went up do 12000 RPM like it did so easely!! cannot wait for the next build haha!

[@trentbikes]

Nah that was free revving, not with actual load. One time it did go up to 12500rpm. Still nuts imo because I never EVER pulled that high before. Sad because I had room for more while riding. I'll try again with either a new cylinder or repair the minarelli some day

[@mikemiller3303]

Well done looks and sounds awesome and when you were getting on it sounds awesome 👍👍👍

[@trentbikes]

Thanks

[@JaviOro1968]

Flying 🏁

[@trentbikes]

lol

[@user-wm1sd4qu7b]

Nice work.

[@trentbikes]

ty

[@chedrwastaken]

that powercurve is so top end heavy its like youve got a turbo and its boost threshhold is like 6000rpm lol

[@trentbikes]

yeah it kicks in really hard at 7k lol

[@R_Kyllonen]

Very enjoyable video.

[@trentbikes]

thanks

[@fonzi0243]

Please be careful brother 🙏 great video

[@2takt_junkie]

bro that thing sounds awesome 🔥🔥

[@trentbikes]

watch my newer videos then!

[@2takt_junkie]

@@trentbikes i watched it yesterday but i like the old sound more:)

[@JMB676]

Hey bro, glad your having fun but since your going ao fast and trying to to go faster you should think about stopping just as fast. Bad ish happens at a blink of an eye and you want to be able to stop. Believe you don’t want to learn that lesson the way I did. Ride safe brother.

[@trentbikes]

Yeah i need to upgrade brakes. Felt faker soon tho

[@TechTokOffical]

might be easier and cheaper to just replace the bike. Set up a patron and get us to fund a bike meant to go that fast with disk brakes and transfer everything over. It's not just the brakes ur gonna have to worry about, just like a car when u beef up one part to make it "optimal"to beef up EVERYTHING. In this case brakes,suspension even the bearings in the wheels aren't made to go those speeds for extended periods of time considering a fit cyclists max speed is like 25

[@trentbikes]

@trpremote the bike is still fine. Im buillding a felt faker soon, few parts to order left

[@Ben-px3qg]

Sharing love form Australia 🇦🇺 keep up the good work 👍

[@exgtt2061]

Stronger clutch and a bigger carb then it will scream 👌 great job

[@trentbikes]

pwk21

[@b0tnia]

holyyyyyy moly

[@stevemccullars8500]

Great video bud! Looks like you had a good time.

[@trentbikes]

I did. But I had more fun going 60mph, I uploaded those earlier

[@paulwebb8842]

I like coatings of tungsten disulfide powder at 0.06mi

[@2strokecarbtuningportingin187]

Tip on porting be mindful of where your location is on your ring dowls are it appears your intake port was way wide

[@trentbikes]

yep dont worry I made sure to check. I couldn't even see the ends of the rings at BDC

[@2strokecarbtuningportingin187]

@@trentbikes did you not notice half your ring dowel missing. What do you think pepperd the head and piston look again at your ring dowels

[@trentbikes]

@@2strokecarbtuningportingin187 if you mean the pins that holds the rings, they are there. they held the rings from moving lol unlike my last piston that was defective

[@dertechniker21.92]

Hey man so i'm new on your channel Rallye love your videos keep going like this 👍

[@trentbikes]

Appreciate it

[@theLyzhendricks]

Ripping I hope to some day have a bike that goes that fast

[@trentbikes]

you'll get there easily I promise you. It doesn't cost so much either. All it take is at least a minarelli (CMB wildcat minarelli for $200), good porting for more performance and upgrades like rmh minarelli pipe or at least 50cc jog pipe on amazon, balancing crank and good carb etc and you'll easily get up to 50mph+ depending on gearing and weight, maybe 60+. An athena sport for $170 on amazon, all it takes is drilling those stud holes to fit m8, upgraded cnc head for better cooling and already hit 50mph+ at 11krpm+ on 40T sprocket EASILY.

[@JeffWalters-ln1es]

U will like the Athena I got 2 and they rip

[@trentbikes]

I tried it already yesterday

[@JeffWalters-ln1es]

@@trentbikes so did i

[@Kirk-j9i]

The way your voice sounds, don’t quit yer day job.

[@trentbikes]

what?

[@JMB676]

You can’t hold any motor wide open like this for that long until it’s broken in and not running poorly. This was inevitable, but at least you had fun. I hope you tune the next one cause that should be the first thing you do after building and putting it on bike.

[@trentbikes]

Yes you can, as long as it's tuned correctly, built correctly (good squish gap, bearings, etc) and not overheating like over 300F etc. My minarelli was already broken in 2 months ago. Before I ported the minarelli, I pinned it going 9krpm 50mph constantly a lot for like probably 150-200+ miles total. Never had issues. That is until, it turns out the big conrod bearing finally failed (from piston hitting the head lol, on top of that free revving so high, while it was happening too other times), pieces falling apart and killed it. I mean, those are scooter cylinders, people pin it and go fast on scooters with those cylinders and do just fine.

[@ExpediteTravels]

Where do you purchase your engines from ?

[@theadventuringknapp5214]

How much was your entire build

[@trentbikes]

entire bike? $1400+ worth

[@fletcherjacobs3688]

@@trentbikesif I wanted you to build me that engine. What numbers we talking?

[@danielbozeman6150]

carb tuning next👍

[@leonardarola]

Oh dang. What you using to measure your rpms?!

[@trentbikes]

Tachmeter

[@leonardarola]

@@trentbikes thanks

[@trentbikes]

@@leonardarola its a runleader tach, theyre cheap chinese, my first one died (i probably wired it up wrong and stuff but still), so far my 2nd is doing fine, wires away from ignition stuff, and i use 2 turns on the hv cable now

[@leonardarola]

@@trentbikes very interesting. Thanks for sharing.

[@trentbikes]

Also it's completely unnecessary to widen down the intake skirt to fully open the piston ports at BDC. It's not going to give you any more performance it turns out.

[@Op1zilla]

👽👍🏻 🚴💥☁☁☁

[@user-gp1sx7mr3e]

Your clutch is toast your engine is going to blow.

[@trentbikes]

Did you not see what happened... also clutch is fine

[@theLyzhendricks]

U should get a phome mount for a speedometer

[@trentbikes]

Yeah. Been planning on getting one

[@leroyvanvuuren745]

think u running 2 lean lol maybe possible pinging too... hard 2 say in video but piston has allthe signs...

[@trentbikes]

I said it was running lean several times in the video

[@vijaykorvekar1009]

Power at 10000rpm

[@dustinh4175]

Next time dont dremel right next to the bottom end just to play it safe. I thought for sure you were gonna crash for a second. Hitting the curb at that speed hurts, Ive done it and it destroyed my bike, my hand and my shoulder will never be the same. I hope your wearing a helmet.

[@trentbikes]

I had to rebuild the bottomend anyway, i planned to even before having metal shavings in there. It was not the issue at all. Big conrod bearing failed. Making a video on it soon

[@dustinh4175]

@@trentbikes maybe try a little more oil in the gas, idk but good luck. U were hauling ass for a min.

[@trentbikes]

@@dustinh4175 i use 32:1 lol

[@dustinh4175]

@@trentbikes just trying to figure what caused the bearing to fail.

[@dustinh4175]

Try 25:1

[@alejandrop.r.7038]

Dude, synthetic oil????????????????????????? its look like mineral oil

[@trentbikes]

castor 927

[@djodjodubois9458]

Don't do this at least in a town or in the heart of a village...you will banish all our little pleasures from any form of existing road

[@0-MACMAC-0]

“WAAAA WAAAA WAAAAA” - djdoodoobois6969

[@brianmattock1431]

Why do you talk like that?

[@trentbikes]

Deaf