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cat
Joined: 30 Nov 2005
Posts: 398
Location: South Africa
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cat
Joined: 30 Nov 2005
Posts: 398
Location: South Africa
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 Posted: Tue Mar 07, 2006 2:14 pm Post subject: Carb kits for the MZ Baghira / Skorpion |
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Carb kits for the MZ Baghira / Skorpion
Dynojet Kit E9204.001 - MZ Skorpion 1995-97 - Stage 2
http://www.dynojet.co.uk/jetkits/update2/mz/E9204.001.pdf
1 needle, 1 needle shim/washer, e-clips
1 slide springs *
CV main jet drill #1.8 (for stock exhaust)
CV main jet drill #1.9 (for aftermarket headers or high-flow slip-on)
remove air box snorkel
"Install the Dynojet slide springs in place of the stock slide springs."
* (but there is only 1.)
Dynojet UK also list kits for the Yamaha XTZ660 (# DJY-4252 - Stage 2) and for the Yamaha SZR660 (# DJY-4151 - Stages 1, 3), but there is no link to the .pdf details.
http://www.dynojet.co.uk/jetkits/motorcycle/yamaha.html
The Dynojet kits cost 88 pounds.
The big thing about Dynojet kits is that their needles are specially shaped (the taper) and they're Ti (which does not wear like Al needles.) Dynojet main jets come in size increments of 2 instead of the usual increments of 5 - although that's not applicable to the Teikei carbs used on the MZ unless you tap them to take Dynojet jets, as suggested by Boysie.
The www.tunebike.de and www.off-the-road.de kits cost 49 euros.
They apparently include 2 drills for the RH main jet, something that looks like a needle jet or the collar for it [?], a diaphragm spacer [which is supposed to compensate for diaphragms becoming less elastic from the alcohol in the fuel], and 4 Allen cap screws for the carb top.
www.dzt-power.de
... "official Dynojet importers for Germany", list the Dynojet Kit for the MZ Scorpion (E9204.001) for all the MZ Baghira and Mastiff models, for 97 euros.
oldboyonrgv suggests the Dynojet kit for the Yamaha XTZ660
http://www.tts-performance.com/catalog/product_info.php?cPath=383_385_389&products_id=2581&PHPSESSID=33b60547365703eca88efae1bac954f2
for 47 pounds [seems odd given that the Dynojet UK site lists the same kit for 88 pounds! ...and they have a link to www.dynojet.com for more information, but that is the USA website which does not list the XTZ660]
and describes an interesting DIY version (www.mzriders.com/viewtopic.php?t=611 but I'll repeat it here for convenience):
| Quote: | carb modifications. The mixture screw gets backed out (Holeshot Performance recommends 7 1/2 turns out from lightly seated), the main jet isn't adjustable, you replace the 130 main jet from the left side (as you're sitting on the bike) carb with a Kehin 135 and screw it in all the way tight. The midrange jet needles (both sides) get raised 1 notch, (this means the circlip goes in the second groove from the pointy end), cut 2 coils from the constant velocity slide spring (right side)and re-install cut side down. Be sure to line up the diaphragm correctly, there is a little tab on the edge of it that fits into a recess cast into the top of the carb. At low altitude (below 5000 feet), you can drill the right carb's main jet with a #51 drill bit, just twist it between your fingers, no need for the drill press and re-install with a new P/N 90-20.142 crush washer. For around town riding this last step isn't really nessesary, you'll foul plugs more often and you should definitely keep a stock main jet (P/N 90-20.146) handy if you plan on doing any riding up in the mountains. The sync screw on top of the carb bank controls the point after the low speed carb carb starts opening that the high speed carb begins to open, crank it in a turn or two so that as you twist the grip, you'll feel the freeplay take up, then the low speed carb start to open, then the added resistance of the high speed carb opening. You want the high speed carb to open just after the low speed opens, without as much of a delay as with the stock setting. This obviously needs to be set with the carbs reinstalled on the bike before the gas tank is replaced. Lastly, if your bike is a Skorpion (Sport, Traveller, Replica, etc., not a Mastiff, Black Panther, etc.), remove the black rubber snorkel from the top of the airbox.
You can also drill out the air damper hole on the CV side (the hole next to the needle) to 4mm; this allows the air to move faster so the slide comes up quicker. and I also recall installing a larger pilot jet, but there again I was running a race exhaust. |
Note: The Dynojet Kit for the Yamaha Raptor 660 is not applicable; it has different carbs with replaceable main jets. |
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roge-a-billy
Joined: 14 Aug 2005
Posts: 41
Location: edge of madness (west london)
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| Posted: Wed Mar 08, 2006 12:52 am Post subject: Re: Carb kits for the MZ Baghira / Skorpion |
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oldboyonrgv suggests the Dynojet kit for the Yamaha XTZ660
http://www.tts-performance.com/catalog/product_info.php?cPath=383_385_389&products_id=2581&PHPSESSID=33b60547365703eca88efae1bac954f2
for 47 pounds [seems odd given that the Dynojet UK site lists the same kit for 88 pounds! ...and they have a link to www.dynojet.com for more information, but that is the USA website which does not list the XTZ660]
and describes an interesting DIY version (www.mzriders.com/viewtopic.php?t=611 but I'll repeat it here for convenience):
No mate there 88 pounds as well I've checked, they have not updated there web site
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Up to my knees in gin & hookers |
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cat
Joined: 30 Nov 2005
Posts: 398
Location: South Africa
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| Posted: Wed Mar 08, 2006 1:32 am Post subject: Re: Carb kits for the MZ Baghira / Skorpion |
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| roge-a-billy wrote: | | No mate there 88 pounds as well I've checked, they have not updated there web site |
Their site's a bit of a mess. I wouldn't buy anything from them. Too many of these people aren't serious about their internet presence. They lose, in the long run. It's understandable when a small motor engineering company has a scrappy/amateur website, but this place wants to sell products. The worst, sometimes, are the ones that don't have proper shopping software and expect you to write down the item numbers and go fill them in on a form. It doesn't cost much to do it properly.
So the best price is DZT :
http://www.dzt-power.de/shop/dynojet_vergaserkits.htm
Their site is ok and their whole operation - tuning and engineering for bikes /etc seems quite good, they have pictures of their people and their workshop, dynos and so on.  |
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sapperk9
Joined: 29 Aug 2004
Posts: 60
Location: Perth, Western Australia
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| Posted: Mon Jul 16, 2007 2:49 pm Post subject: DynoJet |
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Latest link for Skorp is:
http://www.dynojet.co.uk/jetkits/prices-jets-on-road.php
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"In questions of science the authority of a thousand is not worth the humble reasoning of a single individual." - Galileo Galilei |
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Fil
Joined: 22 Jul 2005
Posts: 144
Location: Shropshire, England
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| Posted: Mon Jul 16, 2007 4:44 pm Post subject: |
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That's the kit I fitted to my Mastiff, although I didn't use the spring supplied as it didn't sit as well as the original. I think it's only purpose is to speed up the response of the second carb slide.
I still need to get it set up properly on the dyno too... |
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