HONDA XR150 HORSEPOWER DYNO TEST AND 222CC BIG BORE KIT INSTALL 

That’s going to be a sweet build! Can’t wait to see the power difference

go look for Brazilian tuned bikes like these. they go even bigger on bore

Saw your post on Facebook. Looking forward to seeing the final product for this and it's outcome! Thank you for working on this!

More vids with the xr150 please!

Really nice to see this bike there. This model was developed in Brazil called Honda NX150 Bros years a go. Today, we have the 160cc efi. And here we have o huge industries for small hondas performance parts

Wow, this build has got me thinking about my XR next modification. Can't wait for the next video!

Yea I think I’d be in for this when you guys finish it

Just bought me an XR150 a few weeks ago and love it! I’m about to do exhaust, jets, and air box mod to open it up a bit. This may be next on my list! I will say mine fires right up in one or two cranks with no choke and it’s all stock so not sure why yours is so hard or running so lean. Seems more to me like your pilot jet is gunked up a bit or something…lol. Was awesome to see some actual Dyno numbers on the little bike for sure!

This was amazing! More videos please

Of course I have been waiting for this build with great anticipation . As a few hp more will make it possible to do 60 mph plus and short hwy rides will become safer , I have a bridge on the hwy at 100 klm / 62 mph this would save me the reroute that adds 10 min to the trip . My top speed so far is 66 mph with the wind and slightly down hill I am 250 lbs. , my bike has 2500 miles so it is broken in already and is stock , I have the 115 main jet to install . I am intrigued as to what gearing the BB kit can spin , hopefully a speed of at least 70 mph . My credit card is in hand and I wait patiently . This bike is my favorite in my collection, GL1800 , Navi , XR150L , 230 suzuki 4 wheeler . Do you think it will need a rev- delete kit perhaps to increase the rpm .

More xr 150 videos

The "restrictor" plate you removed was only the snorkle for wet riding. There is a metal screen that needs to be removed under the air filter.

This is absolutely the craziest piston upgrade i have ever seen!! A 57 mm to 70 mm is insane!!!! Usally its like 56 to 56.5 or 57mm but 13mm bigger is CRAZY!!! Must be a while new bike

that tube is part of the 'pair' valve setup. what it does is suck fresh air in thru that whole contraption and introduce air into the exhaust (it drafts/sucks it in) . this goes back to the 80s, the old C10 kawasaki Concourses had this far back as 86. It does 2 things: runs the exhaust hotter so it burns more 'unburnt' fuel in the exhaust (the claim) and 2: it gives a leaner reading at idle to pass emissions. it does not recirculate into the carburetor. so not truly an EGR. Yes, i defeat them on all my bikes as well. (including my xr150). s a side note, I fit a nibbi 26mm round slide on mine to retain the stock airbox and intake tube, i lathed the bellmouth down to just fit the stock runner tube to the air box and it works well. curious to see what your results on this ar as i have a 200cc kit sitting on my shelf. Good to see there's room to do some intake work, that's dismal stock. Keep up the good work! ~ M

Bring it on

Very interested. But really I think a 190ish would be big enough for me. Would be interested in a kickstarter kit too.

Sweet!! Enjoyed this, roll on summer.. it’s f*cking freezing

Whats the compression ratio with the 70mm kit

Great video

Cool as hell, but such an anti-climactic ending. Was really hoping to see some dyno pulls with the big bore kit.

Gorditos. Saturday night meet up spot for Ferry 2 Ferry! Shout out Shannon Hall

I’m interested in the bike but the lack of power is a tad annoying. If I could upgrade for $500-1k it seems reasonable. Would love to see vids of testing it all out.

Weird I've never had an issue with mine starting. Granted I live in Alabama so maybe its a climate thing.

Isn't 14.7 considered to be the perfect air/fuel ratio?

Where is the Dyno run?

Port match intake to carb to max flow with that over-bore upgrade…. 😎

Please do turbo video with the big bore kit

Is there an updated video on this build. Please 😁

Routing exhaust gasses back into the carb is only for emissions it decreases performance

What size jet did you end up using

Thumbs up! From philippines

Really want one of these bikes… I just can’t justify it with all the other crap I got not being messed with

mpg before and after big bore

Mine dont have this much troubke starting

I have a skmilar proyect but its actually interesting since i havent installed the big bore on it but I started with other mods slowly till the point now where i think ill be able of beating up the ktm 200 duke (based on the daily, random street drags that happens often where I live jaja) and i do have the bore but i was focused on doing a 0$ full mods for the xr which almost works out perfectly untill temperature started to be an issue and once i bought 1 thing I couldnt stop later jajaja now i have modified the bike so much from its original configuration and the most significant modifications where made by hand so 0$ spent and its craxy how much you can do with some time a mototul, and some imagination.... and brazilian youtubers🤣😅 mh xr goes up to 150 on the gps i obviously changed the sproket kit too to a 16-38 also I havent tested the full speed cause im still waiting for some higher power parts like balves and springs to avoid a tragedy but ill keep whoever cares posted about it

Are you choking the bike at the start?? Mine starts in seconds no problem instantly...

the Daytona create Engie 190cc have 24hp quite bit more. not bad for a China pitbike engine

Hey bro just get a little ninja 400... Good learner motorcycle making 45+ HP stock only for $5,000

I have a question about an malossi big bore kit with code:317200 it fits on a honda elite af16 ?

Could a guy put an O2 sensor in that top “egr” pipe or would that not read correctly?

Cliffhanger

roof top garden van 😂

Bro i like ur aerox

Do u guys not know how to use a choke

Amethyst cycle guy, but Jesus still loves you messing with four stroke. I am going to buy Paul a energy drink just for the way he held his composure when he said non-binary... fukn love it

This camera work really makes for a nauseous feeling.

I would pay to watch you teach this instead of removing the documentation

What are the new dyno #s ?

Please use a Tripod, your making people dizzy with your camera.

Is it just me, or do these guys seem to not know what they’re doing?

It will over heat and fail in no time,