Turbocharged Mad Max Scrambler Build Timelapse - Suzuki GS400

Watch me turn this seized junkyard gs400 into a boosted scrambler!

Current videos on Patreon Include

-How to Turbocharge your Vintage Motorcycle, Draw Through and Blow Through; A Complete Guide
-How to Wire your Motorcycle From Scratch, with No Experience
-How to Shorten and Modify Clutch And Throttle Cables

This was a lot of work. There were some things that were left out in the final timelapse build video that are explained in the individual parts of this build (mainly parts 5-10). So if you are watching and notice that I switched carb setups and turbo's, watch those earlier videos, they are more in depth and I explain what I'm doing. The bike runs great now (though it does burn oil because of the draw-through turbo setup) and makes a full 12 PSI of boost! Below are links for all of the parts I used, from the turbo setup to the electronics.

Amazon Affiliate Links -

What I use to un-sieze an engine (on both my XS650 Build and This Build)

Turbo Stuff -

Wiring/Ignition-

Custom Seat Pan Materials-

Fluids I use in all my Vintage Bikes

Tools I use

Misc

[DoctorMotorcycle]

*(original comment for context) I recently had a friend ask me if I realized how many ads were on this video, to which I replied, "no?" Holy cow! There used to be an ad break every 3 minutes. I've removed 5 ads from this video, and also removed the "non-skippable" ads as well. From now on and in the future, I will not allow an egregious amount of ads. Take care everyone, and enjoy the video!

[ecrusch]

A few things that stood out for me:
1) He did everything with Harbor Freight tools and other equipment that anybody, like you & me have in the garage.
This kid didn't need $100, 000 in top-of-the-line tools and equipment. That is REALLY refreshing. I mean he put the motor back in on his garage floor, for Gods' sake.
2) No goofing around, just stripping it down, going over everything to diagnose what needs to be done, and he does it.
3) A Turbo?!. Holy Shit, nice!
I must say, BRAVO dude, BRAVO!
I subscribed and liked as fast as I could hit the buttons!
This kid rocks!
And, oh yeah, by the way...14 & 1/2 MILLION VIEWS. nice...

[felixcat]

As a former motorcycle mechanic and workshop owner I have absolute respect and admiration for what you did, and I thoroughly enjoyed your video. Subscribed.

[DoctorMotorcycle]

For those of you who have questions about the build, read this comment, I might answer them.

1. The turbo setup went through many revisions, and the final setup didn't look very similar to the original setup. I changed the flex pipe section, the carb, the turbo, added flanges etc. I thought that it would add too much time and complexity to the final build timelapse, so I didn't include the changes + explanation in the final build timelapse. Watch parts 5-10 if you're curious about what I did.
2. Anything in the video that wasn't shown being painted was powdercoated. The frame swingarm, various engine mounts etc.
3. The astute among you will notice that the "continuity" of the video isn't "correct". For example, I'll be installing an engine cover, and then all of the sudden all of the screws will be in it. I did this to save tame, as well as cut down on boring, redundant parts of the video.
4. I wasn't even sure if it was going to make boost before tearing it down. Off camera, I tested the new setup, before tearing it down, ONE time up the street. It seemed like that in the higher gears, it was starting to build boost, but I still wasn't sure. It wasn't until I filmed the last minute of the video, literally that day, I discovered that the setup was sufficient to make full boost (10psi wastegate, 10psi boost). That day I filmed the video and it hit full boost, I screamed with excitement. I was so glad that the final setup worked, and I didn't have to mess with at any longer. Hooray!
5. I've very well aware, my welding skills to anyone who welds for a living are novice at best. I agree, let's move on.
6. The whole point of this build was to test my boundaries, to move the needle in my skillset. At no point during this build was I confident in weather or not it was going to turn out okay. This is the nature of delving into unexplored territory! There will be many times in your wrenching endeavors that you run into something you don't understand, and have to guess in order to hit your mark. This is part of the process! SO MANY people told me to buy a faster bike, to travel the road that others travel. Don't give in to this type of thinking! You are capable of much more than you think you are, all you have to do is get rid of these garbage beliefs about yourself and keep pushing through adversity. You will hit your mark eventually, with enough grit and determination, I promise!

If you've read this comment all of the way through, I commmend you my friend! Whatever project you have in mind, now matter how ambitious it may seem, freaking go for it! What have you got to lose? Pride? Who cares! GO FOR IT MAN!

-Jimmy
Doctor Motorcycle LLC

[slimtrvper]

After watching this video, I think I’m ready to start working on my $100 project bike 😂

[keithlucas]

Coming from someone who did this 50 years ago to bikes, although "sans turbo, " in my mom's garage and then sold them to buy more bikes, that is a sweet build.
I remember when "black motors" became all the rage in the 70's and everyone was pulling them out to paint em.
That is an an intensive process and amount of work, and it shows...kudos.

[kevinotoole]

My dads a builder so I grew up learning and working with him, in that respect there is very little I can’t do. However, I often wished he was a mechanic so I could of learnt equally as much to do something like this. Really impressive mate and a great looking bike. You have some skills there and thanks for posting for us all to admire 🤘🏻

[jacksands]

Awesome build. I took a 2006 Honda CBR 600 f4i that had been rolled in a ball at 1, 942 miles and has sat for 15 years (forks bent under and swingarm broken off, all plastics destroyed, just basically an engine in a frame) and got it back on the street this year. Looks pretty good from 10 feet. I'll probly put all new plastic on it this year, I repaired most of the old plastic so it looks ok.

[jeffreyness]

Dr motorcycle is the eagle scout of motorcycle design and fabrication. Fiberglass, wiring, cylinder He probably walks elderly people across the street. My resurrected bikes have always been my favorites. There's really something special about firing up an abandoned bike.

[sparx]

Well you won’t spend 33.31 minutes and seconds on YouTube anytime sooner than this. Watched this while having my breakfast. Lovely job. Cheers mate.

[appk]

All of your electrical work is neat and tidy, and I love how the whole thing looks. Well done Sir!

[woodbark]

I believed I was a very patient and tireless technician but you my friend wore me out ! This is an absolutely incredible project and the fact that you finished it, is even more incredible (many similar projects are still sitting around waiting for that vigor and enthusiasm to return to bring them to completion ) CHEERS !!

[DeBe]

Im very respect anyone who make video like this. Imagine how many time he has to set the camera, then work the motorcycle. Only 1 word, salute!

[Steady]

One of the most impressive home rebuilds i've seen... Plenty of bikes look great (this one is no exception), but the exhaust rebuild and adding a turbo put this one in the top tier. So much talented work displayed here. Thanks for the video.

[petebutler]

I loved watching the entire build. I don’t usually sit down to watch anything more than about 20 minutes at a time but this video kept me captivated. Great work man!!

[sunnyday]

I cant believe you read my mind....lol. I often sit and daydream about crazy ideas like taking a late 70's early 80's small CC forgotten motorcycle Tear it down and add a turbo and rebuild it to a whole new design. Crazy idea I have had for a longtime. No one would ever think to do that....lol BUT THERE YOU ARE, you did it!!! Awesome video !!!

[gutsy.trails.adventure]

Not gonna lie, this build totally blew me away and made want a matte black and super rad Scrambler.. well done!

[john]

One badass build. I loved it. You killed it with basic tools. Much respect. Keep on wrenching.

[jamesdaple]

One Very Talented dude!! brought something that was dead, back to life!!! and even better!!! blows my mind !!

[homerfj]

I don't mind the ads. The video is super quality with excellent editing.
Watching someone with the skills to take a bike apart, the wiring (as if it's nothing!), the engine (ditto) then creating new seat, handlebar controls, instruments, rewiring, carburetion, everything needed for a turbo. It's fascinating! This is the second if your vids I've watched. I will rewatch them.
Thank you.