Bike with homebuilt engine

On-going, finished, abandoned builds & questions galore..

Moderators: Dan J, Diesel Dave, Crazymanneil, Stuart

Post Reply
User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Bike with homebuilt engine

Post by boutje » Sat Nov 29, 2014 7:24 pm

After helping with the build of the jawa dieselbike , i want built my own bike.
See the built i was helping with:
https://www.dieselbikeforum.com/view ... =31&t=1775

This are some specs of the new bike:

- homebuilt engine with parts of a yanmare clone (418 cc)
- a suzuki dr 350 6 speed gearbox is fitted (maybe a dry clutch??)
- homebuilt frame
- brembo wheels and brakes (17" wheels)
- cagiva mito frontfork

It will be a sporty looking bike.

I have already started with the design of the engine/gearbox.

User avatar
coachgeo
I luv the smell of Diesel...
Posts: 2002
Joined: Sun Feb 22, 2009 6:00 am
Location: USA Ohio, Above Cincinnati, Close to Dayton

Re: Bike with homebuilt engine

Post by coachgeo » Sun Nov 30, 2014 12:37 am

Sounds exciting. Can't wait to see pics and read the write ups as you go along.

User avatar
Tetronator
I luv the smell of Diesel...
Posts: 502
Joined: Mon Apr 07, 2014 11:50 am
Location: Amsterdam
Contact:

Re: Bike with homebuilt engine

Post by Tetronator » Sun Nov 30, 2014 3:10 am

I was waiting for this post ever since you told me about your plans, can't wait to see what you're going to tinker-up next! :D
"...the fearless Dutchman..." -Stuart
"...the mad Dutchman..." -Diesel Dave

Honda VT600 C Shadow
Image
H̶o̶n̶d̶a̶ ̶C̶B̶R̶6̶0̶0̶F̶2̶
Image
Mercedes-Benz W123 300D Sedan
Image

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sun Nov 30, 2014 9:22 am

I started with making the easy parts.

Here are the first parts.

A set of triple clamps.
Made out of 6082 T6 aluminium.
Cnc milled.
Attachments
voorvork.JPG
Front fork of the cagiva mito
kroonplaat half af.JPG
Raw piece of the triple clamps.
foto kroonplaat diesel.JPG
The design of the triple clamps in the cad cam software

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Fri Dec 05, 2014 7:19 pm

After some frame calculations i have more specs of the new bike.

Wheelbase : 1390 mm
Castor angle : 25 °


The front wheel will be a 17"x 3.00
The front tire 110/70-17

The back wheel will be a 17" x 4.00
The back tire 150/60-17

The next thing i going to do is design and build the swingarm.

User avatar
Tetronator
I luv the smell of Diesel...
Posts: 502
Joined: Mon Apr 07, 2014 11:50 am
Location: Amsterdam
Contact:

Re: Bike with homebuilt engine

Post by Tetronator » Fri Dec 05, 2014 9:59 pm

Making good headway on the bike I see, keep it up! :D
"...the fearless Dutchman..." -Stuart
"...the mad Dutchman..." -Diesel Dave

Honda VT600 C Shadow
Image
H̶o̶n̶d̶a̶ ̶C̶B̶R̶6̶0̶0̶F̶2̶
Image
Mercedes-Benz W123 300D Sedan
Image

Blunt Eversmoke
I luv the smell of Diesel...
Posts: 119
Joined: Thu Dec 01, 2011 6:15 pm
Location: Somewhere by Bremen

Re: Bike with homebuilt engine

Post by Blunt Eversmoke » Sun Jan 04, 2015 6:58 pm

Homebuilt engine? Now that's something I'd love to hear more about :) Displacement, cyl count, layout, injection, induction? 2 or 4 stroke?

Mouse
I luv the smell of Diesel...
Posts: 240
Joined: Fri Jun 20, 2008 11:30 pm
Location: S Wales
Contact:

Re: Bike with homebuilt engine

Post by Mouse » Sun Jan 11, 2015 10:23 am

Good to see someone else using CamBam.
Kubota Z482 which is plodding on with unnerving reliability. Three years so far.
1900 Diesel Bike being rebuilt with better clutch control.

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sun Jan 11, 2015 11:03 am

Mouse wrote:Good to see someone else using CamBam.
I have several cadcam programs.
But i find cambam the best one.

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sun Jan 11, 2015 11:05 am

Some update on the build.

I have bought a set of ligthweigth brembo wheels.
Attachments
wielen 1.JPG
Set of wheels

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sun Jan 11, 2015 11:13 am

And i lost more weight on the wheels by removing the spoke covers.
Each cover weighs 500 gram.
So the total weight reduction is 1.5 Kg each wheel.
The next step is to sandblast the wheels.
Attachments
voorwiel kappen verwijderd.JPG
Total overwiev of the wheel without covers
voorwiel kap verwijderd.JPG
The spoke without the cover
voorwiel closeup.JPG
Closeup over the wheelcover

User avatar
coachgeo
I luv the smell of Diesel...
Posts: 2002
Joined: Sun Feb 22, 2009 6:00 am
Location: USA Ohio, Above Cincinnati, Close to Dayton

Re: Bike with homebuilt engine

Post by coachgeo » Sun Jan 11, 2015 4:11 pm

Aerodynamic drag w/out those covers might be more of a gain then the weight you reduced? Besides what weight you keep you want down low. But judging by your post you know shiats more about this stuff than I do :oops:

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sun Jan 11, 2015 6:16 pm

You are absolutely right about the drag.
But the advantage of light wheels are much bigger than the drag isseu of the wheels.

Light wheels give a much better handeling in corners (specially good for the suspension) , better braking and a better acceleration.

Blunt Eversmoke
I luv the smell of Diesel...
Posts: 119
Joined: Thu Dec 01, 2011 6:15 pm
Location: Somewhere by Bremen

Re: Bike with homebuilt engine

Post by Blunt Eversmoke » Thu Jan 22, 2015 2:50 pm

So, what about the homebuilt engine? Can't wait to hear the details :)

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Fri Jan 23, 2015 7:13 pm

Still working on the design.
I'm very busy with my own business , so the project is not going fast.

But it will be a 416 cc one cilinder.
With a cassette gearbox , external fuelpump , overhead camshaft and liquid cooled cylinder.

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Mon Nov 11, 2019 8:54 pm

New start with the project.
Because i was very busy in my own company (making motorcycle parts and building motorcycles) i had no time for this project.

I started with the engine build a few weeks ago.
First i wanted to build a complete new engine , but i took a suzuki dr650 engine as a base.
Attachments
IMG_20191111_200959_811.jpg

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sat Sep 11, 2021 1:01 pm

And back on the project.
and from now on I will continue with the diesel every Saturday or Sunday.

I took a piston from a lifan 192 diesel because the piston pin exactly matches that of a suzuki dr650.
Attachments
20210911_145210.jpg
20210911_145519.jpg
Last edited by boutje on Sat Sep 11, 2021 1:23 pm, edited 2 times in total.

User avatar
boutje
I luv the smell of Diesel...
Posts: 68
Joined: Fri May 06, 2011 1:57 pm
Location: The netherlands spaarnwoude
Contact:

Re: Bike with homebuilt engine

Post by boutje » Sat Sep 11, 2021 1:08 pm

the piston is about 6mm higher than the dr650 piston.
but a new cylinder liner has to be made.
make it 6 mm longer and make a pocket into the cylinderhead .
Attachments
IMG-20210911-WA0001 a.jpeg

cheesy
I luv the smell of Diesel...
Posts: 92
Joined: Mon Aug 08, 2016 5:58 pm
Location: Illinois

Re: Bike with homebuilt engine

Post by cheesy » Sun Sep 12, 2021 8:43 pm

Cool.
Mike
2004 Lombardini 15LD315 looking for a steed
1979 Honda CX500
1977 VeloSolex 4600 V3
1973 VeloSolex 3800
2007 Ural Gear Up

"I don't even care about my problems, why should I care about yours?"-A quote on a favorite t-shirt

Post Reply