It’s cool seeing someone experimenting with one of these so deep ! Anxious to see the next results

I'm definitely looking forward to the conclusion here

the intake track and the exhaust are your limits. aka carb intake port valve to the exhaust valve and out your exhaust pipe. it only flows so much. by adding capacity to the cylinder it only moves that power to a lower rpm because the larger bore draws in more air. you will lower your upper rpm as well . adding more available air to the intake and exhaust side will in turn allow the engine to produce more power the higher the rpm goes. i suggest porting the head and adding bigger valves. adding more duration to the cam can help as well because it allows the valves to stay open longer which allows more air to be drawn into the cylinder. you guys are on the right track. i cant wait for the next video!

So hyped on this

Nice to see affordable motorcycles that are not Chinese!

@Nick_Spencer

4 ай бұрын

who's gonna tell him...

@str8shogun

4 ай бұрын

​@@Nick_Spencer😅

@shawneddy5658

3 ай бұрын

Let him live 😂

@MishMashMoto

2 ай бұрын

“Made” in Mexico (just don’t ask where all the parts are sourced from:-)

@Shade_Tree_Mechanic

2 ай бұрын

​@@MishMashMotoMade in Mexico, by a Chinese/Honda joint venture as well.

Great video. It will be interesting to see what happens when you start changing lift and duration with trying various cams.

@Scooterswapshop

4 ай бұрын

Definitely!

Hey I Love Your Videos Man can't wait for the finished at perfect result of this bike. SO EXCITED FOR IT.

Thanks for your efforts and testing much appreciated. All is looking good to squeeze more out of this value based bike . Making it best bang for the money . With a cam and pipe and possible head work , these upgrades will be no doubt best improved bike this year . Love you guy's videos .

Love this!

Love to see these big bore kit tuning videos. I’m going to rehear my gy6 now and see if I can hold 60mph

I like this bike because it's simple, very low on maintenance, can take a beating, is easy and fun to ride, and BECAUSE it's slow. It gets me to the trails 30 miles away at 50-55mph no problem, and gets me around with ease and comfort once I'm there. However I do think it's cool to see all these mods people are doing to tweak it to their liking and just show what's possible.

Good job guys!

i cant wait till you sell the parts on the shop cuz im soo doing this to my bike!!! pleasee keep up the work!!

@dustysteele5408

2 ай бұрын

I wonder when it’ll be available.

Thank you very much for the ideas and on point information! I’m putting 66mm on my 150L. All the way from the philippines

@cocowa8413

2 ай бұрын

Can’t wait for it to be finished. Thank you for the hype

@dustysteele5408

2 ай бұрын

I went with a 70mm kit with a cam. It would be cool to compare with the expensive ones.

Cool

I have a question. Is the 2004 Honda XR125 engine significantly different from the XR150 engine, and will this kit fit the XR125?

How much do I need to take off the bottom of the piston?

Awesome!! Please try it with the SmartCarb!!

@dustysteele5408

3 ай бұрын

Or even just a cheap EFI kit.

Can you give me cam specs on stock vs. your cam? I'm looking at just swapping my cam.

Is the only thing needed for this the 222cc kit off your site and the jets?

I'd like to see you test switching to Amsoil synthetic after an initial break in with conventional oil on some 2 strokes or 4. I just bought one of these XR150L's and plan to switch. I picked up some mph on several 2 stroke 50cc motors switching to Amsoil synthetic after initial breaking it in using conventional oil, experiencing a 2nd break in w/ Amsoil, and ultimately the resulting increase in speed. Motors sounded better and lasted longer as well. I hope the same happens with my XR150L. I have built a lot of 50 cc bike mopeds and doing the , what I call a "double break in" (DBI) just described, seemed to add 5-8 mph. Thing is going to synthetic on a 50cc with lots of miles did not get the same benefit. Wish I had this system to test exactly how it improved using the DBI.

Im curious how much you have to mill off below the wrist pin to prevent the lock at BDC.

@dustysteele5408

2 ай бұрын

I was also curious about this.

Awesome! Been looking to get some more ponies out of my 150l without having to sell. Are there any downsides to doing the conversion? Not worried about warranty but more longevity

@Scooterswapshop

4 ай бұрын

No downsides

@bempey

2 ай бұрын

@@Scooterswapshop Almost ... but making more power takes more fuel. And that will reduce the range. A big deal on a touring bike, but I don't think anyone will care on these. I'm finalizing finances on my 2024 at the dealer tomorrow. Going from a vStrom 1000 to a vStrom 650 was an easy change. From the vStrom to the XR150 will be HUGE, so its going to get some mods. But its looking great so far! Keep hacking/modding/ and posting!! :)

When will the big bore kit be available for the XR 150?

@dustysteele5408

2 ай бұрын

It’s on their website but sold out already lol.

Hope the brakes are still sufficient with nearly double the power.

@Scooterswapshop

3 ай бұрын

They’re plenty

So you think 90mph is possible? You bought the whole speedometer😂

@Scooterswapshop

4 ай бұрын

I do yes

@philipcloutier2553

3 ай бұрын

Even 80 mph would suffice as the bike does not weight very much , and will have a tendency to get blown off road by trucks and strong winds . I think even a 67 mm. Piston version should be built as well . Good luck. Please let me just buy your kit . As soon as possible as am old and can we pre-order .

Does the CDI can increase HP. I tried swapping the CDI for 100cc 2 stroke Yamaha to a 135cc 2 stroke Yamaha and the 135 significantly loss HP. And also I saw a post where that big bore kit destroyed his XR engine. The piston seized. In Asia most big bore kit replacement the mechanics also increases the diameter of oil lines.

@philipcloutier2553

4 ай бұрын

I would be surprised if it blew up , because honda already has a XR190L. So that factory cylinder can be bored for larger a piston . We in North America should have been blessed by honda with this XR190L injected and a gas gauge. Australia XR190L has twin side stands , left and right humm. Imagine that . Good for lefties or rightness. LOL.

@dustysteele5408

2 ай бұрын

It this video they said they had to clearance the piston, if the guy in the other video didn’t do that then it definitely would’ve destroyed some stuff.

Big bore kit, Carburetor, Cam and exhaust vs the cost of buying a 250 bike. What are the cost savings?

@Scooterswapshop

25 күн бұрын

You’d need to do the math when comparing bikes. The cost to build this is dirt cheap. Less than a sport bike exhaust

So a big toque increase pluse a top speed of 80 mph would suffice as the bike does not weight very much , and will have a tendency to get blown off road by trucks and strong winds . I think even a 67 mm. Piston version should be built as well . Good luck. Please just let me just buy your kit . As soon as possible as am old and can we pre-order . I want to give you guy's my money . Please help and comment.

@Scooterswapshop

3 ай бұрын

Shoot us a message on the app we will have cylinders soon

@philipcloutier2553

Ай бұрын

Thanks for the update I have ordered the kit and now wait for things like a new carb choice and possibly a cam and a cylinder head a exhaust pipe . Your research is always much appreciated and videos are captivating.

Awesome

mpg

🤭