Search found 128 matches

by twinshocker
Sun May 30, 2021 10:39 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

You are not a big fan of bending tubes Beat right ? :grin:

The bend on the smaller tube of the front leg has so a small angle why did you weld it ?
by twinshocker
Mon May 24, 2021 9:37 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

I didn´t want to offend you.... just couldn´t resist :lol: :thumb
by twinshocker
Sun May 23, 2021 12:14 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

beat wrote: Sat May 22, 2021 9:50 pm ............
IMO, the uper yoke dos not need to be strong because it holds mostly only the weight of the front end itself when bike is on jumping.......
Are you sure Beat ? :roll:

Image
by twinshocker
Thu Apr 15, 2021 7:24 pm
Forum: Videos
Topic: Alan Clews
Replies: 1
Views: 1446

Alan Clews

Don´t know if this has been postet before :

https://www.youtube.com/watch?v=RHHwwJOBHrE&t=6s
by twinshocker
Thu Apr 08, 2021 8:12 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

These Reigers are really zhe best shocks especially for a sidecar outfit :thumb
You see them on almost every decent modern sidecar MX bike
by twinshocker
Mon Apr 05, 2021 4:32 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

beat wrote: Sun Apr 04, 2021 7:48 pm
DSCN2407.jpeg
Why didn´t you make the upper and lower slider as one part but in two pieces and clamp it onto the swingarm ?
by twinshocker
Wed Mar 31, 2021 2:18 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

That´s what i call a chainguide !!!!! :thumb
by twinshocker
Wed Mar 31, 2021 12:35 pm
Forum: Tech
Topic: close valve lifter
Replies: 2
Views: 1469

Re: close valve lifter

On my engine i fitted a selfmade lever which is longer so it makes less angle when you pull it.
i can confirm that a minimal travel of the valve is enough to move the crank easily.

I had to do some welding and filing on the rocker because it was worn where the decomp touches it.
by twinshocker
Fri Mar 26, 2021 3:15 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Beat, i see your inovative design , i don´t want to critisise you just my thoughts : A throughgoing spindle ( even if it is a very light tube ) will make this area of the frame much stronger. Especially on sidecars there is way more load on the swingarm as on a solo machine as we all can imagine. Bu...
by twinshocker
Thu Mar 18, 2021 3:03 pm
Forum: Project bikes
Topic: 1972 CCM #23
Replies: 12
Views: 2643

Re: 1972 CCM #23

For me the question that comes in mind is as follows : Even if its a replica frame it seems to be very well made. So if you have the skills to do that why wouldn´t you build your own frame instead of copiing another one ? i think it is more work to make it identical. Today when CCM prices have reach...
by twinshocker
Mon Mar 08, 2021 10:19 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Will you put some metal spacers between the plate and the rockerbox or something rubber/elastomer ?
by twinshocker
Wed Mar 03, 2021 11:11 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Beat, i hope you have kept in mind to get the finished frame out of that room ? :mrgreen:

There is a story in the CCM book "Rolling Thunder" . They have built a sidecar chassis in Shifnal Street and couldn´t get it down the stairs, so they had to cut the brandnew frame in pieces :shock:
by twinshocker
Wed Mar 03, 2021 9:12 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Wood !
One of the most underrated materials in frame building :thumb
by twinshocker
Tue Feb 16, 2021 9:38 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

It is definitely steel not Ti, which is banned for MX racing since the famous Titanium-BSA by the way.
by twinshocker
Tue Feb 16, 2021 12:31 am
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Yes :!: I have not seen a bike made in Stainless ever, --- before I made my own one! I have a Bichler-Yamaha , the tubes are not magnetic and do not rust, so i think it must be something similar. Franz Bichler was usually a sidecar Motocross pilot on Nortons and later he made a couple of frames for...
by twinshocker
Fri Feb 12, 2021 9:38 pm
Forum: Tech
Topic: 78 CCM restoration
Replies: 4
Views: 2101

Re: 78 CCM restoration

Both of my 78 CCMs are chromed . I once bought a used frame which was rechromed, works fine until now. You should find someone who knows his buisness. There is a procedure that can weaken the steel and another that doesn´t. So don´t go to an ordinary electroplating shop , find someone who does frame...
by twinshocker
Wed Feb 03, 2021 1:57 pm
Forum: Tech
Topic: Wear Tappet
Replies: 5
Views: 2429

Re: Wear Tappet

i did that grinding on my tappets.
They must be absolute perpendicular to the axis in the cross direction and have an angle in the longitudinal direction.
That ist the thinner side that you saw.
This angle is approx. 2° as i measured it on my tappets. May be someone here knows the exact angle ?
by twinshocker
Fri Jan 22, 2021 5:55 pm
Forum: Project bikes
Topic: LOBE 2 20-21
Replies: 236
Views: 44796

Re: LOBE 2 20-21

Hi Beat, what a nice engine ! When i look at all the welding and the machining you did on the clutch mechanism , i have to say i would have gone the whole way and fit a hydraulic clutch. But you wrote that you don´t like it so it is ok :thumb Its always a pleasure to follow your projects ! Another q...
by twinshocker
Mon Jan 18, 2021 6:56 pm
Forum: Tech
Topic: kickstart cotter pin
Replies: 9
Views: 3199

Re: kickstart cotter pin

kommando wrote: Mon Jan 18, 2021 1:16 pm Soft so its sacrificial, cotter pins are a lot cheaper than kickstart spindles.
..........
Thats what i thought, thanks
Its not a BSA its a Triumph Tiger Cub by the way but the principle is the same.
I made it out of a good steel and it works fine
by twinshocker
Mon Jan 18, 2021 11:38 am
Forum: Tech
Topic: kickstart cotter pin
Replies: 9
Views: 3199

kickstart cotter pin

Hello,

i am making a new kickstart cotter pin at the moment.
Question: should that part be hardened or not ?
The original part seems to be not too hart, i think it is for preventing the kickstart shaft from damage if the screw gets loose ?

thanks and a happy new year
by twinshocker
Fri Jan 15, 2021 7:13 pm
Forum: Tech
Topic: woodruff keys
Replies: 13
Views: 3919

Re: woodruff keys

You are right it should not be to high and a little gap between the key and the top of the groove is necessary . But as mm said this key is only for orientation , so it doesnt matter if you make it to fit with a file . I did this a few times and it is not difficult , even the angle and straightness ...
by twinshocker
Sat Jan 02, 2021 12:53 pm
Forum: Tech
Topic: auto decompressor/valve lifter ???
Replies: 25
Views: 5681

Re: auto decompressor/valve lifter ???

Here is the mechanism from a Husaberg: cam stands still or moves slowly , the weight ist held in the inner position by a very soft spring and a little nose on the cam profile lifts the rocker arm : https://up.picr.de/40231518oz.jpg https://up.picr.de/40231521wa.jpg cam rotates, the weight is forced ...
by twinshocker
Sat Jan 02, 2021 12:25 am
Forum: Tech
Topic: auto decompressor/valve lifter ???
Replies: 25
Views: 5681

Re: auto decompressor/valve lifter ???

I think it´s the same as on the aircooled Husqvarna fourstrokes.
You habe a cable from the valve lifter to the kickstarter .
When you kickstart the bike a little nose at the Kickstarter pulls this cable and the valve lifter is actuated.

On the Huskys everybody gets rid of this because it is crap.
by twinshocker
Thu Dec 10, 2020 10:09 am
Forum: Tech
Topic: Which Spark Plug?
Replies: 16
Views: 3150

Re: Which Spark Plug?

A "cool" plug means it takes less heat itself and gets more heat away into the cylinder head.
So it is suited for a hot running engine.

On the other way a "hot" plug gets warmer itself and is used in enigines with less power or heat.
by twinshocker
Wed Nov 25, 2020 3:01 pm
Forum: Off topic
Topic: Star
Replies: 317
Views: 104716

Re: Star

Always keep in mind:

You don´t stop racing because you get old,
you get old because you stop racing !!

:mrgreen: :thumb
by twinshocker
Tue Nov 24, 2020 2:19 pm
Forum: Tech
Topic: Fitting Allen screws to rocker box on B50.
Replies: 35
Views: 9836

Re: Fitting Allen screws to rocker box on B50.

I know i will be crucified after this, but when i found out that two of my threads in the head of my CCM were already damaged, i changed the whole thing to M8 with helicoils.

UNC , UNF, cycle, BSF.... way to much for my continental brain :roll:
by twinshocker
Fri Nov 13, 2020 3:18 pm
Forum: Off topic
Topic: Star
Replies: 317
Views: 104716

Re: Star

Ahhhh

I see ! :thumb
by twinshocker
Thu Nov 12, 2020 1:25 pm
Forum: Tech
Topic: Clutch Pushrod???
Replies: 17
Views: 3732

Re: Clutch Pushrod???

I don´t know if there are tolerances or if someone has modified my clutch mechanism, but all i can say that a 6mm ball fits easily on my CCM
by twinshocker
Wed Nov 11, 2020 8:43 pm
Forum: Off topic
Topic: Star
Replies: 317
Views: 104716

Re: Star

Another question Beat.

Is there a reason that the steering head of your frame is not round ?
by twinshocker
Tue Nov 10, 2020 11:41 pm
Forum: Off topic
Topic: Star
Replies: 317
Views: 104716

Re: Star

Beat, i found this thread at the moment, and i am very impressed to say the least ! Believe it or not i live 15 Kilometers from Möggers, i am there every time except this year as i was in hospital myself. It would have been great to see you there <069 Sorry to hear that you crashed, this track is re...
by twinshocker
Tue Oct 27, 2020 1:08 pm
Forum: Off topic
Topic: If you ask me.......
Replies: 1
Views: 1007

If you ask me.......

..... on top left is Vic Eastwood on the CCM pulling a monster-holeshot at the German 500GP in 76 ! :thumb ccmicon

Imageon top left
by twinshocker
Wed Oct 21, 2020 7:44 pm
Forum: Tech
Topic: B50 valve lifter to bare casting.
Replies: 37
Views: 6287

Re: B50 valve lifter to bare casting.

Wow great job!
I have to admit it looks like laser- or water jet cutted
by twinshocker
Wed Oct 21, 2020 2:49 pm
Forum: Tech
Topic: B50 valve lifter to bare casting.
Replies: 37
Views: 6287

Re: B50 valve lifter to bare casting.

That copper gasket looks nice ! how did you make it ?
I see you have a Rotax-CCM as well :thumb
by twinshocker
Fri Oct 09, 2020 8:45 pm
Forum: Tech
Topic: Valve Timing
Replies: 1
Views: 903

Re: Valve Timing

Yes thats the correct position :thumb
by twinshocker
Thu Sep 24, 2020 1:39 pm
Forum: Tech
Topic: Chinese Carburetor
Replies: 4
Views: 1476

Re: Chinese Carburetor

An original Mikuni VM roundslide is not expensive and works on almost everything.
So i see no reason to buy some crap from China !
by twinshocker
Wed Jul 15, 2020 7:46 am
Forum: Tech
Topic: Kick start spring B50
Replies: 6
Views: 1937

Re: Kick start spring B50

All i can say that mine is weak to.
Thats why the kickstarter is fixed to the frame with a rubber strap in the upright position ( classic 70s fix :mrgreen: )
by twinshocker
Thu May 28, 2020 10:15 pm
Forum: Tech
Topic: A kicker that actually folds away?
Replies: 23
Views: 5490

Re: A kicker that actually folds away?

His office girl spends most of the day at a lathe or milling machine.
seriously ! :mrgreen:
by twinshocker
Thu May 28, 2020 3:39 pm
Forum: Tech
Topic: A kicker that actually folds away?
Replies: 23
Views: 5490

Re: A kicker that actually folds away?

You can also go to "catalogues" then "CCM " and you see all the exploded views.
There you can click on a part number and it will list you the stock and modified PES parts if available
by twinshocker
Thu May 28, 2020 2:37 pm
Forum: Tech
Topic: Engine stand
Replies: 8
Views: 2002

Re: Engine stand

I have this one for all my engines

Image

Image

one arm can be adjusted to fit different engines and the whole thing can be fixed at different angles. An oil pan is also included
by twinshocker
Tue May 26, 2020 10:41 am
Forum: Tech
Topic: Foam Air Filter/Air Box For MX
Replies: 8
Views: 2478

Re: Foam Air Filter/Air Box For MX

This type of filter:

Image