Turbo Mad Max GS400 Scrambler (PART FIVE) - Motorcycle Timelapse Build

[@Nrgpack]

BTW, there is nothing wrong with your skills and knowledge, you'r doing great !!!

[@gkkUK]

so cool and u giving the details is very helpfull

[@vintagedashboard6810]

My 84 Honda CB700 Nighthawk s has hydraulic lifters so I guess I’m lucky I don’t have to adjust them. You do very nice work and I enjoy watching your videos.

[@doggochannel6271]

card board holder is genius man good job

[@cre8tivegarage157]

This is going to be fireee!

[@DoctorMotorcycle]

Thanks friend, my skills and tools are stretched to the limit as usual haha

[@rogerfrancis65]

I was always led to believe that when you turbo charge any engine you need to lower the compression ratio by using a thicker headgasket to compensate for the increase in compression caused by the turbo.

[@DoctorMotorcycle]

Generally yes, but this setup needed all the help it could get to spool the turbo. The more power it makes on motor, the more power it makes on boost.

[@timceltic6439]

Your the man. 👍

[@itschrisb]

Hey have you looked into a pilot tube? Basically it runs from your boost tube to the bowl vent to pressurize the bowl to help with fuel flow. The bowl has to be completely sealed for it to work. I was going to turbo a Suzuki Samurai using a Harley CV carb and everyone who has done it used that setup with the pilot tube. This was going to be in a blow thru setup so draw thru maybe it doesn’t apply but figured I’d mention it.

[@DoctorMotorcycle]

If I went that route I would've needed a fuel pump/fuel pressure regulator. Too much additional work. I'll get this to work, it's just going to take some trial and error.

[@itschrisb]

@@DoctorMotorcycle I don’t know that you would need either. It’s not for boost referencing to increase fuel pressure from a regulator it’s so that the fuel bowl is pressurized and forces fuel into the venturi based off the increase of air from the turbo. Again a lot of this is based of blow through setups but it makes it so you don’t have to run huge main jets. Either way I’m sure you’ll get it up and running and I’m stoked to see the progress!

[@DoctorMotorcycle]

@@itschrisb Yes, but just adding boost pressure to the float bowl won't provide more fuel. You need to be able to provide additional fuel via a fuel pump, or the float bowl would just run dry. The float bowl being pressurized would prevent gravity fed fuel from entering the float bowl, which is why you need a fuel pump and fuel pressure regulator.

[@itschrisb]

@@DoctorMotorcycle ahhh gotcha. I didn’t think about the fuel being gravity fed! Sorry!

[@kuakkacam]

That die grinder/router abortion thing you use would do my head in. The body is massive with that itty bitty cut off disk. My OCD getting the better of her but you obviously are used to it.

[@stansmith1911]

Hey doc. I see the done motorcycle or else it looks done. But there’s no video that I can find. I may have missed it. I’ll go back look some more.

[@DoctorMotorcycle]

Hey Stan, not sure what you're referring to. You're saying you can't find the full build video? Click on the most recent video that I made, and skip to about halfway through the video to see new content. I think you're probably clicking on the newest video (the full build, where it's completed and I ride the final version at the end) and see the first parts and think "I've already seen this". Click on the new video and skip to about 15 minutes in or so, everything from there on is new. -Jimmy

[@MrTinchopper]

Hello friend, I want to ask you something, I have problems with the original carburettors of my gs 400 and I am thinking of replacing them with a flat slide carburetor, would you give me your opinion if you are so kind? and what would be the appropriate one? Thank you very much, your channel is very good

[@DoctorMotorcycle]

Buy mikuni vm32 or vm34 round slide

[@MrTinchopper]

@@DoctorMotorcycle thank You so much bro 🤘😎

[@StraightLineCycles]

I think the flexible section could be belowing on you.

[@DoctorMotorcycle]

Thanks didn't consider that, however the couple is very thick and meant to see boost so I doubt it. I'll check the next time I'm riding it though.

[@patrickroberts7847]

Arnt you suppose to torque the cam cover?

[@DoctorMotorcycle]

It's all coming back apart in the next video or two for a rebuild anyways. Couldn't get it to build boost, did a compression test and got 90 PSI in the right cylinder and 70 PSI in the left cylinder.

[@jams_finest]

Any links to the dyna rpm limiter

[@DoctorMotorcycle]

I would provide a link but I ended up not using it because it didn't work. Huge letdown

[@jams_finest]

I have a honda cb400/4. Thought of doing a similar set up, but I wanna source a 2 step

[@umar6962]

RIP headphone users 10:11

[@DoctorMotorcycle]

My bad lol

[@pascalcoquerelle3181]

les soudures ne sont pas fameuses ,dommage...

[@jimtorrance9589]

Can't watch this guy. Time lapse wrong areas of build. Too much slag on welding. Turn it down bro.

[@DoctorMotorcycle]

whatever

[@bosphorusfisherdiver2241]

You must lern good welding

[@esesoke]

Az boyz build better