Messages

1

Tech Talk / Re: 79 Suzuki Rm125 crank seal

« on: December 31, 2024, 08:15:21 am »

Just an update.
Got oil seals.  Pro x seal looks identical to the regular 29x47x7 double lip seal only is 1mm thicker.  Have installed pro x and it holds ok after some riding.  No excesive smoking and hopefuly no leaks. Will se how long is it going to last

2

Tech Talk / Re: 79 Suzuki Rm125 crank seal

« on: December 09, 2024, 08:16:49 am »

Thank you fo reply.  Ordered Pro X seals and also find an oil seal that is 29x47x7double lipped.  That is just a milimeter thiner than OEM.  Will try Pro X first and have the rest as back up. Sould hold ok.  Later suzuki used just a regular oil seals.  Nothing fancy

3

Tech Talk / 79 Suzuki Rm125 crank seal

« on: November 27, 2024, 07:16:40 am »

Helou
Just would like to ask Suzuki expetrs/addicts what right hand crank seal(79 Rm 125) can be used in place of the originál suzuki item.  Originál suzuki has two spring but is no longer available from partzilla or cmsnl. Would a regular double lipped seal with only one spring work just fine?
Thank you

4

Tech Talk / Re: Mikuni needle jet bore sizes, 159 type

« on: April 18, 2023, 04:14:56 am »

Hello
This web site also has a needle jet chart.
https://www.thumpertalk.com/forums/topic/1224849-mikuni-tmx-needle-decoding/
Need to scroll down about half way. I got a good result drilling out not sure what size needle jet to size S-0 just by using a 2.8mm drill bit 

5

General Discussion / Re: TODAY'S TIP :-)

« on: March 16, 2023, 02:32:24 am »

Hello
From what i understand I do agree with John's idea. Basicaly by using a piece of hose you are lowering the point(by maybe a few milimeters) from which fuel is sucked into jet (avoiding foamy fuel near top) therefore no(or much less) air bubbles are present and mixture is more consistent. Bit like when you drink freshly poured glass of beer you burp lot more but when beer is flat you burp less

6

Tech Talk / Re: Shock internal gas bags.

« on: March 01, 2023, 05:49:26 pm »

https://www.ebay.com/itm/334383646819?hash=item4ddad18863:g:uzAAAOSwD9FiQvJq&amdata=enc%3AAQAHAAAA8N%2F2rDDNukCdVg4tyPeEMpCJz2tPowOQ9%2BrqJbhmi2TPeTmIxsOyqcqrvzubCn0qD10hYcuTynh%2F8ZvTN5iwlitjupoGUu4uQNaIqw825Xijme%2Fl37SZIV%2BZf08gcWAxPw%2FRBAGXcdU3rUmoCyTdt%2BsOUAUVVrbTp7FjbUyhN0k6jm6JRb6HQEm%2FjJTQKDbUz2dwtJX8JSzxFPdKUb6v9oxNMsnBQqmYFALlf7F4YBBMYMd7nZ0faqgTqV4gAs5bZ7u6lpyGasspDtCCmLckMD8NeOrq4afQEaI8yxs54M%2FzItO81IigSGkMoPG53AdcTA%3D%3D%7Ctkp%3ABk9SR8bd9JvTYQ   ??

[/quote


No that's a bladder for a remote reservoir, or piggy-back, shock. A gas bag was/is a version before DeCarbon style.

OK

7

Tech Talk / Re: Shock internal gas bags.

« on: March 01, 2023, 07:38:52 am »

https://www.ebay.com/itm/334383646819?hash=item4ddad18863:g:uzAAAOSwD9FiQvJq&amdata=enc%3AAQAHAAAA8N%2F2rDDNukCdVg4tyPeEMpCJz2tPowOQ9%2BrqJbhmi2TPeTmIxsOyqcqrvzubCn0qD10hYcuTynh%2F8ZvTN5iwlitjupoGUu4uQNaIqw825Xijme%2Fl37SZIV%2BZf08gcWAxPw%2FRBAGXcdU3rUmoCyTdt%2BsOUAUVVrbTp7FjbUyhN0k6jm6JRb6HQEm%2FjJTQKDbUz2dwtJX8JSzxFPdKUb6v9oxNMsnBQqmYFALlf7F4YBBMYMd7nZ0faqgTqV4gAs5bZ7u6lpyGasspDtCCmLckMD8NeOrq4afQEaI8yxs54M%2FzItO81IigSGkMoPG53AdcTA%3D%3D%7Ctkp%3ABk9SR8bd9JvTYQ   ??

8

Wanted / Re: Boge Mulholland LTG parts.

« on: February 27, 2023, 06:38:00 pm »

Hello
That i dont know. One I have is hard chromed(same as any shock shaft)12mm f7 tolerance and it is 20MnV6 material. It is also available in 14,15,16 and so on diameter.  What I am trying to say is that if you want to have period corect looking shocks or repair shocks where replacement parts are no longer available, this is an option. I have rebuild 2 pairs of old ohlins(new shafts) and a set of RM125 shocks(ohlins 12mm seal heads) and they work just fine. Most of the time what is damaged is shaft(hard chromed part is worn),seal head is leaking and teflon strip on the piston is worn.Shims etc is mostly ok and usable.
Isnt there a lot of vintage Betors, Marzocchis etc. with ohlins internals around just because people want to have a correct loking vintage bike? But some people just want  shock absorbers and thats fine 

9

Wanted / Re: Boge Mulholland LTG parts.

« on: February 27, 2023, 12:49:30 am »

Good afternoon
A shock shaft is usually made from round hard chromed stock to any length you wish. Round hard chromed stock is used in hydraulics and can be purchased from place that repair or build hydraulic rams etc. I got 12mm thick 2m long piece for about 20 dollars. Than you only need a hacksaw and a lathe to make it to correct length. Also a seal head can be made from round aluminium stock. Bushing, o-rings and shaft seals can also be purchased from various place for a few dollars. Not everyone has 1200 dollars to buy a news set of shocks and some people like to use as much original parts as possible and have period correct bike. However some people just want to buy news set of shocks and thats it 

10

Tech Talk / Re: Air cooled twostroke, best head gasket material?

« on: January 25, 2023, 12:28:33 am »

Some engines dont use head gasket at all. For example my Jawa 50cm3 (Jawa 21 Special) has no head gasket and i never had any leaks(compresion ratio is 9.5 to 1 and have 3 piston rings) 

Alloy to alloy? Do they need a coating, like VHT copper coat, to seal?

No. Cylinder liner is cast iron. Liner is pressed in aluminium cylinder and there is a flange on top of the liner. Cylinder head has a recess and thats it. There is 4 M6 studs holding it together. Shops are selling aliminium washer like gasket but from factory there was nothing. I do not thing that anyone at the factory bothered laping it together or anything like that 

11

Tech Talk / Re: Air cooled twostroke, best head gasket material?

« on: January 24, 2023, 05:12:47 am »

Some engines dont use head gasket at all. For example my Jawa 50cm3 (Jawa 21 Special) has no head gasket and i never had any leaks(compresion ratio is 9.5 to 1 and have 3 piston rings) 

12

General Discussion / Re: TODAY'S TIP :-)

« on: January 17, 2023, 06:14:04 am »

and if you can not get magnesium tig rods or thing the shipping is too expensive for a couple of them to fix you holed magnesium clutch cover. you can get a magnesium anode rod( 99% magnesium) from a local hot water system supplier an use it in place of tig wire. It is a touch thicker but it worked really well for me 

13

Suzuki / Re: SUZUKI SWAPS

« on: December 14, 2022, 08:17:51 am »

Head is no later than 78 RM 125. 79-80 RM 125 had no step.

14

General Discussion / Re: Electric charger

« on: April 08, 2022, 05:48:26 pm »

And just for a bit of laugh https://www.youtube.com/watch?v=Zk11vI-7czE&t=694s

15

General Discussion / Re: Electric charger

« on: April 04, 2022, 11:12:11 pm »

Well I think that we are just going to kill and poison our planet faster. We can not even fully recycle AAA batery. What can you do with battery that weights 1/2 ton
Perhaps send it to some poor country and pretend that it has been recycled