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@@clintwestwood1895 thanks a lot!! I appreciate the watch, sub, and compliment very much! Stay safe as well bro!😎

@@RedRideRVT1R this bike definitely gets great gas mileage. Even with the big bore I think I was getting around 80mpg. That was with me constantly ripping it around though because it was so fun!

@@Simulera thanks for watching and subbing if that was you! This setup can be had for around $700 with decent parts. The reason I invested in doing this was because of the seat height for my wife to be able to ride. She wasn’t comfortable with a 250 and thought it would actually do 70mph like advertised but we were lied to lol. 55mph was doable. Now it’ll climb any hill no matter the elevation and how long the hill might be. Stock it would drop to 45mph and I’d have to downshift. I should’ve shown more before taking it apart to do the 78mm 300cc stroker build. I should have a new video of that soon.

@ interesting! Now you need to upgrade the brakes and install a fork brace! Very cool. It will be interesting to hear about engine durability and transmission wear too.

@Simulera yeah, the suspension, brakes, wheels and tires will all get upgraded eventually. I will definitely add a steering dampener. I plan on WPC treating a lot of parts to try and help with durability. I’m also planning on adding an oil cooler and filter.

@@joed3651 www.ebay.com/itm/134997124619

@@joed3651 thanks for watching and subbing, if that was you. I really appreciate it. Hopefully the link stays.

@@leonelvalenzuela8752 all you need is better intake, bigger carb, bigger head, bigger piston(bore), bigger exhaust, and 18t/46t. If you have any specific questions I can answer them on here. Thanks for watching and subbing, if that was you.

@@fazlerabby6510 stock speed with me on flat ground was 60 mph, so 28 mph more. I didn’t record fuel mileage before disassembly of 70mm but my guess would be around 75-80 mpg. Stock was 100 mpg. I did not need to cut or machine the crankcase. 70mm is probably largest before machining or cutting is done. 78mm I’m installing for 300cc will need to be cut or machined.

@@fazlerabby6510 thank you very much for watching and subbing if that was you. It’s very appreciated.

@@DustySteel Thank you so much for your response.my bike is cbz xtreme which had the same engine as xr150.My bikes stock top speed around 130.with racing coil,plug,cdi,exhaust,airfilter I got almost 138 with 43-14 sprockets.please give some suggests to increase 20/22kmph more so i could hit 160kmph.

@ I’ll have to learn about cbz xtreme because I want rear hub to be 43. If you want more top speed and have the horsepower to do it then I would go up with the 14t to 15t, 16t, or 17t. I’m using 18t/46t.

@@fazlerabby6510 you’re welcome!!😎

@@Rambo-o4o8s thank you so much for watching and subbing, if that was you! New video coming soon.

@@suitandtiedye thank you for watching and subbing, if that was you. I really appreciate it. I should have the next video out soon of the 300cc build.

@@mikegunn3152 hey thanks a lot!! I really appreciate it!

@@clevero8532 thanks for watching and subbing, if that was you! I believe the Lifan is very similar. I don’t have any experience with Lifan though. The XR150 is a 14pin I believe.

I hear people working on xr150l lifan talk about weak gear box. U can bore it up but u cant ride it hard. U will blow bottom end motor. Not even 70mm. If u bore it up 63 and ride at high rpm. U will get rekt

@@cuongnguyenquoc3947 I’ve already done a 70mm kit and was able to go 88mph, didn’t have any issues.

@@cuongnguyenquoc3947 I have heard that too that the gear boxes are weak.

@@DustySteel ur moto build by honda or lifan mate!? If lifan build, be careful.

@@orlandobarros4235 thanks for watching and subbing, if that was you. The vibration is the same as stock.

@@orlandobarros4235 thanks for watching and subbing, if that was you. Top speed is 88mph. I have another video showing this.

@@salitysss981 thanks for watching and subbing, if that was you! 300cc is definitely extreme and not for daily use. I should’ve had the head made and flow tested but this is my first build and this was the first head that I had seen in this size. I’m definitely going to install the wideband again to help tune the carb. I’m going to also have the piston and cylinder treated so it will stay cooler and last longer. I’m also going to add an oil cooler or two.

@@TheMotorcycleMessenger thanks! That’s the Insta360 X4. I need to actually upload using a computer and not my phone though for higher quality videos.

@@jjjfffppp I never even tried because I knew I’d be taking everything off again. I’d imagine it would need to be filed or Dremeled for clearance. I’ll figure it out soon and make a video. I made kinda bad short showing it on and talking about it but never an actual video.

@@DustySteel I actually got it back on. Just has to be lined up perfectly .That sprocket only have me about 2mph. More at the top. I'm hoping the Yoshi exhaust will help. The jet ,opening the air box and this sprocket got me from 55 to 57mph. I'm 210lbs . So probably bigger then who should be on this bike. But it does feel like it holds the speed better. Like even on inclines it will hold 55 when before 55 was max in best case scenarios

@@jjjfffppp I’m also about 210lbs. Even with just a big bore it only wanted to do like 70. The head really helped for top end speed. SXParts has their kits available again. For around $600 you can get a big bore with a forged piston, big valve head for whatever size big bore, and a cam. With stock gearing I could just give it a little gas and the front tire would come up. Definitely makes it way more fun.

@@DustySteel that is def in this bikes future. Thanks for all the advice. Looking forward to part 2 of the new big bore video

@@axellopez9099 I think it just unbolts from the bottom with an allen wrench. I’d have to look at it again.

@@UikoSlyZerna once I’m done with the 300cc build?

@@UikoSlyZerna thanks for watching and subbing, if that was you.

@@AmrinderSingh-zx9hr thanks for watching and subbing, it’s greatly appreciated! All of the top end including the carb is sold already. New parts should be here soon with an updated video.

@@AndrewSmith-eq8np thanks! I’ll turn it around. I thought I had put it facing the right way so I’ll definitely double check now.

@@AndrewSmith-eq8np thanks for watching and subbing, if that was you. It doesn’t tell me everyone who subs.

@@jjjfffppp thank you so much!! That means a lot!

@@AccountNameGuy thanks for watching and subbing, if that was you. It had a stage 3 cam with the 36/31 head and 70mm big bore.

@@DustySteel forgot to hit it earlier, just subbed rn

@@AccountNameGuy thank you very much!

@@isthattoasted8152 hey thanks for watching and subbing, if that was you! I used the stock bracket as a spacer and then put the clip in the groove part of the shaft.

@@2NDAmendmentsupporter thanks for watching! Yeah, but I’m going to add some catch cans.

@@BionicRasta thanks for watching and subbing, if that was you. I didn’t get the steak and that was the biggest one at the store at the time. I season it a couple of hours before and can definitely still taste the seasoning. My grill just has the 3 vents on the bottom controlled by one handle. I leave it open when cooking it this fast. If I’m trying to grill slowly then I’ll use the snake method.

@@GTReaper37 thanks!! Thanks also for watching and subbing, if that was you.

@@TheMotorcycleMessenger thanks for watching! Maybe someday.😊

@@MishMashMoto probably!🤣

@@DustySteel let's find out...

@@MishMashMoto I mean they’ll work on everyone else’s XR150L, but not yours specifically.🤣

@@DustySteel I will put them on her bike then. 🤣

@@MishMashMoto she probably would love that so that works perfectly then.🤣

@@613Builds thanks a lot! Yeah, I just forgot to show the undersides. It was stuck on the bottom.

@@jjjfffppp thanks for watching and subbing, if that was you. I just moved it for the video to show to turn it off. If you gave it more air to flow then it probably needs more fuel to go along with that air. You could try putting one size bigger pilot and at least a 115 main jet if you are at sea level.

@@DustySteel awesome thanks!

@@jjjfffppp I’m surprised you didn’t mention the gas line having a tear in it.🤣

@@DustySteel I did notice lol. I figured you had it handled. I asked about the reserve because I thought maybe it made it run better or something.

@@jjjfffppp it doesn’t leak so I haven’t changed it yet. It definitely runs better when you’re able to get fuel.😎😂

@@TinShackVideos thanks for watching! Luckily I caught it right away.

@@jackassman5671 Abe Engine Idea via FB.

@@jackassman5671 thanks for watching!!😎👍

@@FPI23 mine is definitely more of a street machine. I keep it clean for sure! I have a prefilter that I’m going to put on for when it gets really wet and I’m going to add a mudflap.

@@naufaltsabitadz6327 thanks for watching and subbing, if that was you! I’m not sure how much hp because I haven’t had it dyno’d.

@@TheMotorcycleMessenger right on brother! Thanks for subbing; if that was you! I like your profile message and agree completely! You earned my sub.😎👍

@@KatieJackson-t4m oh no!! The one that I got was free when I bought the head. It’s only 30mm and has an o-ring. I’m not going to use it for my setup.

@@KatieJackson-t4m I believe that Abe has a metal one that’s $35.

@@LeeLegendre thanks for watching and subbing; if that was you. I don’t get notifications for everyone. There are definitely a lot of options for big bore sizes depending on what you’re wanting and willing to pay. I’m currently working on a 78mm setup with a +4.2mm crank for 300cc. Big bore stroker. With the current 70mm 222cc setup I’m using a 36/31 head with a cheap PWK30 carb. th-cam.com/video/L3wLJ9CVxv8/w-d-xo.htmlsi=gFzPQpRpZIUJwqAQ If you want to maintain the stock airbox just buy a 45 degree elbow that matches the outside diameter of the carb and then port the airbox to match the outside diameter of the elbow. You’ll need to get a manifold that has the port, it will need to bolt up to the carb design that you choose, if you’re wanting to maintain emissions. With most carbs they have vents that can just go into the stock location.

@@LeeLegendre if you have a lot of money you could get a SmartCarb or Lectron, etc…

@@LeeLegendre most carbs come out of the box with something that is close and have charts that show you how to jet. If you get a wideband then it takes the guess work out of the equation. Match the size carb with the intake inner diameter of the head. I think stock head is 26mm for example.

@@garyleemcdonald2368 thank you!! Thanks also for subbing; if that was you.

@@tobeymatthews4345 if you are wanting low end power than I would recommend going with a smaller front sprocket. If you don’t want to add power by adding a big bore.

@@tobeymatthews4345 thanks for watching and subbing; if that was you it is greatly appreciated.

@@AssociatedNotaryProcessServer thanks for watching and subbing; if that was you!

@@jamessharp9790 thanks for watching and subbing; if that was you. My guess is around 28hp but who knows? They run this setup in Indonesia all the time. May need to change out gears at some point but it’s not a huge issue.

@@jamessharp9790 it may blow up right away. I guess we’ll find out lol.

@@MishMashMoto thanks for watching and for the info; as always, it’s greatly appreciated!😎👍

@@MishMashMoto they told me that they did that so that the valve wouldn’t hit the spark plug.

@DustySteel It is a huge valve!!! Since your indexing is critical for clearance issues, make a mark on the outside of the spark plug with a little dot or line of paint and make a mark on the head also so you can verify it each time you you reinstall the plug. I mark mine where the ground electrode/strap meets the threads of the plug because it makes remarking new plugs easier and consistent.

@@MishMashMoto okay; I will do that.😊 I was going to take the engine apart yesterday but I ran out of time. Maybe this week I’ll have time to do that.

@DustySteel 👍🏼 I am not in a hurry on my end so keep it together and enjoy it until your ready to take it apart and build it.

@@joshbarnes5784 thanks for watching! I suppose there are probably a few options to solve this. I’m worried if I force it then something will break. I’ll either modify the brackets or just make new ones.

You won't have to force it and you won't break anything. The whole engine is slightly out of alignment and that's why you cannot install the bolt. Also the "l" head and the "f" head are exactly the same

@@joshbarnes5784 okay; I could look into that. Do the “f” heads also have the holes for the sensors? I know they are all very similar. SXParts only listed it as CRF 150 L.

@@DustySteel they are cast with the sensor and air bypass locations but are not drilled for them. I removed all of the air bypass crap and plugged the holes

@@joshbarnes5784 I didn’t unbolt the engine though so in my opinion with how much it’s still off, even with me boring the head mount, it’s off too much. I don’t have the stock head anymore otherwise I would compare the two.

@@TinShackVideos I also rtv’d the flange at that time; I just had the carb tilted so the bowl was a little more away from the exhaust lol.

@@DustySteel The cheapo rubber boot, the more the hose clamp is tightened, the bigger the gap.

@@TinShackVideos agreed!! I’ll need to find a metal 34mm one. I might try my skills at aluminum casting and just make one. I’ve never tried before.

@@joshbarnes5784 I’ve never used one and don’t really have high hopes for it lol.

@@joshbarnes5784 thanks for watching and subbing, if that was you!😎👍