Messages

1

Suzuki / Re: Question: Will a 1978 seat fit on a 1975 RM125S ?

« on: February 21, 2017, 09:32:53 am »

No, but a 73-75 TM100/125 and 78-79 PE175 will fit  or you could buy a replica seat base from...

https://www.dcvmx.com/xcart/product.php?productid=19388&cat=&page=1

Thanks  !

2

Suzuki / Question: Will a 1978 seat fit on a 1975 RM125S ?

« on: February 21, 2017, 01:20:38 am »

Hi,
my 1975 RM125 is missing the seat and now i've an offer for a seat of a 1978 RM125.
Will the 1978 seat fit on my frame?

Regards
Marcus from Germany

3

Maico / Re: 77 Reed Block

« on: January 05, 2017, 04:11:09 am »

That means a YZ85 reed block will also fit, from what I've read there is a v-force unit that fits into the RD350YPVS & Banshee cylinders
Always surprises me just how small old reed blocks are compared to newer bikes, often the smallest modern bikes have the same size as something older 3-4 times larger

Yes you are right, v-force is possible. But I don't think it's necessary.
I'm always surprised how good the small reed blocks work on higher revs. My expectation was that they will restrict the revs on a lower level than without reeds. But this is not the case 

4

Maico / Re: 77 Reed Block

« on: January 04, 2017, 03:37:59 am »

Also. If you dont mind me to ask. Does your cylinder have any kind of boost port added/drilled? Thank you

There are no extra ports added..

5

Maico / Re: 77 Reed Block

« on: January 04, 2017, 03:31:31 am »

I still don't know why people think reeds are open at BDC........

I don't think so too!
But after BDC when the Piston wents up the flow goes trough the holes until the piston skirt takes the lead, therefore they are so high 
In the picture of the radial barrel the piston is not on BDC, it has ~30mm to go.

I think it's not good to open the 3.overflow to the intake, as shown in PCMAX cylinder,
because this spoils the flow.

6

Maico / Re: 77 Reed Block

« on: January 04, 2017, 03:08:19 am »

Did you make a sub plate for mounting the GEM reed block to the earlier cylinder rather than build up with weld? Looks like a very elegant way of doing it that would be able to be reversed
Your homemade reed block looks good, do you remember what the yamaha reed you used was out of?
Very impressive work

Yes, there is a sub plate between cylinder and case in both cases.
For the square barrel the GEM Kit includes this plate and you just have to customize it for the round intake hole.

The yamaha reed is out of a RD350YPVS or Banshee 350 Engine.

7

Maico / Re: 77 Reed Block

« on: January 03, 2017, 06:40:13 am »

An I've also made a model 76 reed cylinder.
But this time I used a selfmade case with Yamaha reed.
It goes like hell and need also the big exhaust pipe of the 400ccm!!

8

Maico / Re: 77 Reed Block

« on: January 03, 2017, 06:05:22 am »

Hi, I tried the GEM reeds on my 69'er squarebarrel GS250. It runs greath
The reed cage has been milled out to fit the Intake port on the cylinder (see the pics).













I also use:
shorter piston (modell 1983-20XX),
crank from 1982 and bosch ignition,
exhaust pipe for 400ccm cylinder, because the 250ccm doesn't work well any longer on the reed 250ccm!

9

Maico / Re: mick d doug is looking for info on these frames ?

« on: August 06, 2015, 06:13:28 pm »

I've asked my friend now, he says the tank was a KREIDLER "egg-tank" from the 60's.

As this one.

10

Maico / Re: 78 Magnum front axle spacer

« on: August 06, 2015, 05:13:45 pm »

24,75 and 30 mm are the Parts i have ! 24,75 is for the speedo i think 

11

Maico / Re: mick d doug is looking for info on these frames ?

« on: August 05, 2015, 06:05:59 pm »

Here are the infos i have in the moment about the SELBACH.



The Text is:
" Much of the special-selfmade motocross-machines make a good impression nowadays.
The building and finish is much better and cleaner than in former years, here for example the frame of the Selbach-Special."

The picture was shot in Villingen, on the 2nd run for the german MX championship, 1964  !

12

Maico / Re: mick d doug is looking for info on these frames ?

« on: August 05, 2015, 07:44:40 am »

Hello,
i know this frame from Germany. The Seller is the owner of the Metisse-Maico with the rounded squarebarrel cylinder 



Selbach is correct. It's an selfmade  frame, as WaBeHa.
I have seen a picture of it in an old MOTORRAD magazine, but sadly on this picture the tank is taken apart also, for better working on the engine...  I'll have to search for it ....

BUT maybe a friend of mine has an other picture with tank, i'm not sure.
I'll ask for it.

13

Maico / Original Scrambler (GS) from 1960 for sale in USA

« on: August 28, 2014, 01:36:20 am »

Hi,
there is an very original Maico GS from 1960 for sale in USA (not ebay ) :
http://www.2040motos.com/Other/Scrambler/1960-maico-scrambler-110491/

It might be interesting for some of you .... 

14

Maico / Re: Pre-65,,,Eligible MAICO s

« on: August 09, 2014, 02:35:02 am »

Hi Mick, nice tank in mint conditon it seems 
I was on holidays for 3 weeks, otherwise i would have catched ist

15

Maico / Re: Ultra Rare 1979-1980 GS350 Maico Magnum for sale

« on: April 28, 2014, 04:05:18 am »

Yes as our friend Maico-Mac(Marcus) has told me, indeed they did make a 350cc in the Magnum series
But apparently they are ultra rare, in Germany.
There is one for sale at the moment on German Ebay
http://www.ebay.de/itm/Maico-GS-350-T-/251504380469?pt=Motorrad_Kraftradteile&hash=item3a8ed44a35


I bet Firko would love one of these

Yeah, nice bike  !!  Near Frankfurth....