Messages

31

Competition / Re: Evo stuff?

« on: November 20, 2018, 10:04:46 am »

Awesome K, thanks for the input. You're 100% right about social media/forums but you've got to start somewhere and it also comes up with posts like yours. Cheers.

ps BigK would you have an email address for an appropriate point of contact with MA?

32

Competition / Re: Evo stuff?

« on: November 20, 2018, 09:29:16 am »

Yeah Ted as an aside, I don't understand the S1 Maico status at all. Which is another reason why I'm trying to understand the simple stuff. :-)

Anyway, my confused understanding of carbs.....

The rules essentially say when it comes to evo, 'components falling within the post classic era are acceptable'. Post classic is pre95 isn't it? It also has a specific rule for carbs saying 'period flat slide carbs' are acceptable, which I then interpret (uh-oh!) as pre95 carbs are ok. PWKs are late 80s aren't they?

So I wonder if the attempt to clarify the intent with carbs by adding an additional, specific rule actually confuses the situation. Most folks would simply refer to a pwk generically as a flat slide carb wouldn't they? Not a discussion I want to have at scrutineering! :-)

As for TLS brakes.... please ignore the brands I reference, its just for the sake of discussion of the rules.

I've seen new billet hubs and backing plates for Maicos. The backing plates seem accepted (legal) on the grounds of safety and I'm guessing the same goes for billet hubs. Makes sense to me.

I've also seen the same thing for husqvarnas and I imagine they are legal for the same reason as the maicos. Around 1984 tho husky's had a TLS front brake and you can buy a new replacement billet TLS brake for a husky.

So... it would seem that I could put an original husky TLS brake on a maico - its all period correct - and it would be legal.  But if a new replacement billet TLS is legal on a husky then surely its still legal if you stick it on a maico, being A) the same situation as if you put oem husky parts on a maico and B) its legal on a husky.

Where it turns to complete mud to me is if a billet TLS brake made as a specific replacement part for a SLS maico is not legal, then maybe fitting a husky billet TLS brake to a maico is legal. Haarr! Bonkers!! I definitely ain't having that discussion at scrutineering.

So there is my personal struggle with some of the simple stuff. Thanks for being the only one brave/stoopid enuff to chew the fat Ted. :-)

33

Competition / Re: Evo stuff?

« on: November 19, 2018, 04:02:36 pm »

Great, thanks Ted.

Re the TLS brake - how about an aftermarket brake currently produced for a specific, Evo legal bike as a bolt on replacement of the oem single leading shoe brake.... in or out?

Cheers

34

Competition / Evo stuff?

« on: November 19, 2018, 09:49:34 am »

At the seemingly high risk of starting a storm in a stubby holder...… :-)

Can I get some perspective on the current rules for a couple of things in Evo?

1. Are keihin PWK's now legal? It seems they are??

2. What's the story with Twin Leading Shoe (TLS) brakes? If the technology is ok in principal are there restrictions on the actual brake hardware that may be used?

Is it worth me contacting someone like Dave Tanner and asking? By worth it I mean would it carry any weight at the track if my bike made someone unhappy?

Thanks guys and please try really really hard not to behave like donald trump. (I kid!!)

35

Honda / 1984 CR500 rear hub

« on: November 14, 2018, 12:19:08 am »

Anyone know if a 1984 CR125 rear hub will fit a 1984 CR500?

Thanks.

36

Tech Talk / Pipe paint

« on: November 13, 2018, 11:48:15 pm »

So my CR500 has what looks like a clear coat of some sort on the pipe. Can someone tell me what it is?

Ta.

37

Maico / Re: '81 490 gearbox ratios

« on: November 10, 2018, 06:30:44 pm »

Cool thanks Nebo

38

Maico / Re: '81 490 gearbox ratios

« on: November 08, 2018, 10:39:49 pm »

Where do you get the service bulletins from Nebo?

39

CZ / Re: 360 sidepipe pistons

« on: November 07, 2018, 08:31:59 pm »

Not much help I know but my suggestion is contact OTZ and ask him if he has what you want. Guys like that have tons of stuff that never gets listed on the website simply because they've got better things to do.

40

Maico / Re: '81 490 gearbox ratios

« on: November 06, 2018, 05:59:45 pm »

Well I bought the bike guys and at this point I'm thinking 1) Ride it and see what I think 2) I won't know for sure what's in it until I pull it to bits.

If/when I do have it apart I'll put some info up here.

41

General Discussion / Re: Used to Race - Not Racing Now - What would bring you back?

« on: November 04, 2018, 08:38:44 pm »

# Fun tracks (You will never please everyone with this one though)

Yeah ain't that the truth. :-)

After nearly 30 years away from the sport.... fun tracks is #1 for me.  And a fun track imo is technical/challenging, not overly dusty, has vintage friendly jumps (ie no idiotic supercross s**t) and is not stoopid fast (surprisingly old bodies break if you smash them into the dirt at high speed). Fast, boring, dusty and dangerous and I'd rather stay home and mow the grass.

42

Maico / Re: '81 490 gearbox ratios

« on: November 03, 2018, 04:10:14 pm »

We have a winner sleepy, all I gots to do is upgrade my balls :-)

I think 14-56 is standard on the mx 490's. Reason 3rd gear in particular interests me is coz that's the trick to a good start with those bikes. For me at least. A lower 3rd could be a significant drawback, four lap races and all. I was even thinking I'd like to try 14-54 with the close ratio box and a strong motor.

14-51 or 14-49 (can u get a 49??) might make for a big gap with the 3rd to 4th shift on the wide box...

43

Maico / Re: '81 490 gearbox ratios

« on: November 03, 2018, 02:05:32 pm »

Hmmm interesting. 3rd gear is 10% lower on the GS from those numbers, that seems like a lot. 10% on the final drive is going from 56t to 50t to make them similar if I understand it correctly??

44

Maico / Re: '81 490 gearbox ratios

« on: November 03, 2018, 01:14:02 pm »

Thanks sleepy. I don't understand tho…stoopid question... if 1,2 & 3 have the same number of teeth why are the ratios different?

45

Maico / '81 490 gearbox ratios

« on: November 03, 2018, 08:51:42 am »

Can anyone tell me the difference between the close ratio mx gearbox (RT?) and the wide ratio enduro box (GT?). The ratios for the mx box are easy to find but I can't find any info on the enduro box. Is it an easy job to convert to an mx box? Cheers.