Go to Main Site Diff'rent Strokers
For fans of oddball two-strokes everywhere
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Classic Bike Trackdays

Eastern European's Infiltrate
Goto page Previous  1, 2, 3, 4, 5, 6  Next
 
Post new topic   Reply to topic    Diff'rent Strokers Forum Index -> Other Strokers
View previous topic :: View next topic  
Author Message
Top-shaggy
Show Star !
Show Star !


Joined: 05 Mar 2011
Posts: 1678
Location: Derbyshire

PostPosted: Fri Feb 13, 2015 11:22 pm    Post subject: Reply with quote

Upgrade ???
Shocked Shocked Shocked
_________________
We are where we are...
Back to top
View user's profile Send private message
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Thu Mar 12, 2015 8:00 pm    Post subject: Reply with quote

Front brake upgrade kit installed on the MZ ....


_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
Gillinghampaul



Joined: 15 Aug 2012
Posts: 655
Location: Kent

PostPosted: Thu Mar 12, 2015 8:45 pm    Post subject: Reply with quote

Is this turning into the woefully inappropriate upgrades thread?
_________________
Gagging for it
Back to top
View user's profile Send private message
Gillinghampaul



Joined: 15 Aug 2012
Posts: 655
Location: Kent

PostPosted: Thu Mar 12, 2015 8:47 pm    Post subject: Reply with quote



Or even this?



Both get my approval i like little bikes with big engines!
_________________
Gagging for it
Back to top
View user's profile Send private message
arlurt
Show Star !
Show Star !


Joined: 28 Nov 2006
Posts: 680
Location: North Yorkshire

PostPosted: Thu Mar 12, 2015 9:46 pm    Post subject: Reply with quote

Certainly made me smile! Very Happy
_________________
Light is right.
Back to top
View user's profile Send private message
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Fri Mar 13, 2015 6:11 pm    Post subject: Reply with quote

Get twenty miles out of a rear tyre?
_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
arlurt
Show Star !
Show Star !


Joined: 28 Nov 2006
Posts: 680
Location: North Yorkshire

PostPosted: Fri Mar 13, 2015 6:38 pm    Post subject: Reply with quote

Looks like the bottom one is actually a trike?
_________________
Light is right.
Back to top
View user's profile Send private message
Gillinghampaul



Joined: 15 Aug 2012
Posts: 655
Location: Kent

PostPosted: Fri Mar 13, 2015 8:02 pm    Post subject: Reply with quote

I dont think id stay on it long enough to need to worry about how long a rear tyre lasts! On the plus side i bet you never need a front tyre, it will never be on the floor!
_________________
Gagging for it
Back to top
View user's profile Send private message
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Tue Aug 04, 2015 8:09 pm    Post subject: Reply with quote

July was a bit damp, still been hooling around Norfolk, this was one of the least wet days ... August been good so far!


_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
DSBBadmin
Site Admin


Joined: 13 Nov 2006
Posts: 605

PostPosted: Wed Aug 05, 2015 8:25 am    Post subject: Reply with quote

This was for sale at Cadwell, it belongs to reverse cylinder jim on here. Lot of nice touches on it, pretty cool. Cool

Back to top
View user's profile Send private message Send e-mail
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Fri Aug 07, 2015 7:21 pm    Post subject: Reply with quote

Nice, all the right stuff. Too smart for me .....!
_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
ajb235



Joined: 11 Aug 2015
Posts: 2
Location: Yorkshire

PostPosted: Wed Aug 12, 2015 4:27 pm    Post subject: ETZ250 mods Reply with quote

Hi, I,m new here, but looking at major mods to my ETZ 250' which I wanf to use on the road as a cafe racer, rather than racing.
Two big things to do
1. Reed valve : Is there a thread on this forum (or anywhere )that shows just how this is done?
2. Exhaust : I' m going to fabricate an exhaust system that will unleash the true potential of these engines.

Would appreciate any guidance, reed valve procedure is the main thing.

Thanks
Back to top
View user's profile Send private message
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Thu Aug 13, 2015 5:26 pm    Post subject: Reply with quote

Things to do that make a difference that I can help you with:

1. Replace the heavy MZ piston with a Sukuki TS250 alternative ... much lighter gudgeon pin is straight fit
2. Shorten barrell top and bottom to match Suzuki piston crown and skirt lengths
3. Re port as necessary for (2)
4. Trim lots of weight off clutch ... preferably with alloy clutch outer
5. Reed valve ... can increase inlet opening time massively but need to know what you doing on porting. Use a 4 petal RD unit as that is good enough. Quite a bit of machining unfortunately

I'll send you my port map if that is helpful
_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
ajb235



Joined: 11 Aug 2015
Posts: 2
Location: Yorkshire

PostPosted: Thu Aug 13, 2015 9:27 pm    Post subject: ETZ250 tuning Reply with quote

Thanks for the information, some useful advice there,which I will follow. The port map would be even better, no substitute for experience!
Thank you.
Back to top
View user's profile Send private message
emzedder



Joined: 15 Dec 2006
Posts: 282
Location: E.Anglia

PostPosted: Fri Aug 14, 2015 6:16 pm    Post subject: Reply with quote

No problem, trick is to get some more power while not sacrificing reliability and starting (the old chesnut for strokers) my setup gives a more exciting ride but no lap records. Boring the carb by 1mm is beneficial but better to go for an appropriate Mikuni if you can afford it.

I have fitted a Kart PVL ignition which has been brilliant but is not cheap. Run slightly retarded ignition from standard to start with and slowly advance until you get a good response.

I have boost ports which make a difference but a tricky machining task ...worth the effort

Pipe is all about maths but I have a generic dimension setup if you would like that. Message me your mail address.
_________________
If it don't ring-a-ding-ding it ain't worth a thing
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic    Diff'rent Strokers Forum Index -> Other Strokers All times are GMT
Goto page Previous  1, 2, 3, 4, 5, 6  Next
Page 5 of 6

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group.  Installed, administered and modified by  Diff'rent Strokers © 2006-2018.