Author Topic: MZ skorpion ,connecting rod  (Read 4849 times)

Ian

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Re: MZ skorpion ,connecting rod
« Reply #15 on: March 07, 2007, 09:13:21 PM »
Hi Jim,

Parking , pilot or side light ,Normally wired to come on with head light also it comes on when steering lock is on 2nd notch ,
Very low wattage bulb ,not enough to light the road.

Phoned BSA up this afternoon your looking at approximately .......
£15.50 for a new complete parking light and £5.00 postage to the USA , Postage is estimated might be more or less according to weight and quantity. Not to sure what that is in $
Will phone the breakers tomorrow to see what they sell them for.......A lot of the Skorpion is Yamaha branded MuZ .

I can't see why the rods go ,
Sport was starting to rattle I've owned it for 3 years 24000 Km's never been through the red line ,I don't know what the previous owner did to it..
Bought a traveller with a rattly engine 38000 miles ,little end shredded and scored barrel. Stopped using sport expecting the same sort of damage happening soon.
Bought a re-built XTZ engine 102mm high compression piston ,re-ground cam ,standard con rod ,I wasn't sure if the con rod had been replaced nether was the previous owner ...
Fitted it into the sport it lasted 15 minutes of leisurely riding ,banging like a drum.

It would be interesting to find out what the extra parts would cost to fit a raptor crank.
Main bearings ,starter gears ,etc

There is lots of MZ 660 info on :  http://www.mzriders.com/mz/
Cheers
Ian

bikeseamus

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Re: MZ skorpion ,connecting rod
« Reply #16 on: March 07, 2007, 10:42:32 PM »
Ian
          Mysterious indeed.     No question the 102mm high compression piston may be harder on a stock rod, but I'm wondering if it's oil related?
                             I run 20 50 Valvoline 4 stroke motorcycle oil, Rated JASO and MA on the specs, MA being capable of resisting molecular shear in a common gearbox, and the JASO spec is the highest valve train and cylinder film spec available here in the US.
                               I also run Yamalube 20w40 with no problems, and a coolant with an anti microbubble compound in it for better cooling, like the racers use. Over here it's called a coolant "wetting" agent.

  I will admit that I regularly bump against the rev limiter...... actually use it for a shift point in "spirited" riding.

      I'll bet if you get one of corsemeccanica's rods you will be OK, and I am curious which one they use.

      You can trust them, as you can your man at Slipstream over there.  I'm certainly no expert on these mills.

  Yours is the first problem I have heard of with the stock rev limiter in place, but like you said, it is impossible to tell what the previous owners did that may have damaged the engine.

  Sounds like your ace at Slipstream will have a good grasp of what is involved in a Raptor internal parts swap, and if you see what you need on ebay over here, and the seller is a jerkoff that won't mail overseas, let me know and I'll help you get what you need.
                                  How's that?                                   Cool for now,  Jim

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #17 on: March 08, 2007, 11:13:08 PM »
Hi Jim,

I've been using Fuchs Silkolene 10/40 ,As recommended by my local bike dealer.

I'm afraid I've had no luck finding you some pilot lights from my local breakers ,
Phoned 2 up this afternoon ,1st one wanted to sell them with the fairings ,
2nd said he hadn't got any so they must be rare ? yeh right.
Will let you know if I find any..

If you visit the link in my previous post you'll find I'm not the first one with this problem ,even without the 102mm piston.
But it could all be down to previous owners neglecting oil changes and a heavy right hand

The only reason I'm not using Slipstream is that if I bought 2 Carrillo rods and had them fitted to the cranks ,
I can buy another MZ Skorpion Sport for the same money ,at least I'd have lots of spares.........

I've Emailed corsemeccanica about their connecting rods :)
Cheers
Ian

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #18 on: March 09, 2007, 02:34:50 PM »
No joy with Corse meccanica , Won't ship to the UK...........

But they did say

"The connecting rod you are interested in is quite suitable for your application - we have racers in the US running these on 104mm high compression engines without incident. The stock con rod has a history of failure once the engine is tweaked."

Not bad as you can buy 2.5 for the price of a Carrillo ....

And sent me a link to Barker's Performance ,

I've just sent them a email ,might have more luck this time as they make them ..

themoudie

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  • Posts: 4755
Re: MZ skorpion ,connecting rod
« Reply #19 on: March 09, 2007, 07:58:56 PM »
Aye Gentlemen,

Whilst running an SRX600, Ducati singles or BMW F650 and not the Yamaha 660 motor, may I suggest that 'ringing its neck' through the gears may not be the problem. Plonking it in 'top' will knock the stuffing out of any big single rod/bigend of over square dimensions. Ducati's singles, even with expensive Carillos etc. cry "Nuff" if plonked. The SRX below 3500 in top feels decidedly rough, it also helps break up that naff 5th gear we have! The BMW F650 is similar to the SRX.

Maybe lowering the gearing a tooth or two on the rear sprocket might help to keep the revs up on the congested and speed restricted roads most TC members endure for much of the time.

Maybe all tosh, but!

Hope you all get sorted and thanks for the offers from across the pond!

Regards, Bill

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #20 on: March 11, 2007, 12:05:29 AM »
Are you insinuating I'm plonking Bill ?

Can anyone explain this ?

Carrillo connecting rod in the USA    $215       aproxamately   £111.30
Carrillo connecting rod in UK            £264.38  aproxamately   $510.51

I know that they make more than one type for the Yamaha 660 engine ,I wouldn't think there's that much price difference .
And it can't cost that much to ship them !

Still no luck with getting a US company to ship to the UK ..............

guest27

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Re: MZ skorpion ,connecting rod
« Reply #21 on: March 11, 2007, 12:57:58 AM »
Each is individually wrapped by a virgin (hard to find in the US) in the finest Organic silk, before being pakaged in a hand hewn aquamarine box with solid 24 ct gold hinges.  They are then packed individually in a climate controlled container and individually shipped, with four further dusky virgins taking care of its every whim up to delivery.  Upon delivery a crack team of mechanics strip your bike and fit the rod, replacing each and every bearing for a hand selected, perfect unit, blueprinting as they go, where as in the US they just wrap them in oil paper and a cardboard box before sending them Fed Ex

R

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #22 on: March 11, 2007, 09:52:39 PM »
That's just being silly ! 24 ct gold hinge .

I can understand 4 dusky virgins ;)

It must be a pain having to find 4 more for the next delivery ......

guest27

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #23 on: March 11, 2007, 10:32:23 PM »
They had to close their operation in Port Talbot after two deliveries - and then one was returned because at least one was lieing.

R

themoudie

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Re: MZ skorpion ,connecting rod
« Reply #24 on: March 11, 2007, 11:21:33 PM »
Aye xbrmz,

No, I'm usually the 42 carat plonker! An old Aerial HT was the best, max retard, 1st gear and it would spin the back wheel whilst trying to climb a brick wall. However, a pure B whilst trying to control over boulders, spit you off and keep going, even when lying on its side!

As for the price of the sacred rod 'staff of life' in a single. When shipping from USA the following maybe added to the cost of the rod. A fourteen percent (14%) import duty on the price of the rod, the cost of the carriage, plus VAT @17.5% on the total sum of the aforegoing. Even with the 'strong' GBP they ain't cheap.

Pattern rods as I and others have found to our cost can also prove expensive, when playing 'peek-a-boo' through the cases or bottom of the barrel! :-(

Maybe some discreet correspondence with this company below might be fruitful. One off specials from £140/rod plus VAT.

Thunder Engineering, Leicester: stevecampbell@thunderengineering.co.uk

I have no experience or association with the company, caveat emptor.

My regards, Bill

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #25 on: March 12, 2007, 09:07:04 AM »
Hi Bill,
I'd forgotten the import duty ,I wonder if one in parcel post would sneak through ?

Thanks for the Email address I'll keep it to hand .
At the moment I'm waiting for replies to Emails I've sent to the USA.

I've also a few phone numbers of Raptor dealers and tweakers in the UK.
I know I'm doing it back to front ( plonking ) but the prices in the US are appealing ,as I'm after 2 rods.

I'm not bothered who makes them as so-long as they don't turn to butter when I start the bike ..........
 

guest27

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #26 on: March 12, 2007, 10:17:34 AM »
The duty and VAT etc is supposed to be collected by who ever delivers the package - ie Royal Mail, Securicor - in my experiance most are not geared up to deal with the handling of cash etc.  So long as it is being delivbered to a 'home' rather than a 'business' address you may find it OK.

R

Ian

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #27 on: March 12, 2007, 04:48:08 PM »
That sounds hopeful on the VAT etc Rog .

So far I've sent over 10 Emails to the USA ,1 reply ,Is there a national holiday over there ?

And 15 Emails to raptor custom parts and tuning dealers in the UK  this afternoon.. 1 reply.........

Still not getting anywhere...............

guest27

  • Guest
Re: MZ skorpion ,connecting rod
« Reply #28 on: March 12, 2007, 11:14:07 PM »
Oh and the tax etc is payable on the value given by the sender on the customs declaration too.  If you trust the post not to loose it and the sender is willing - this is illegal BTW and not only will interest the usual tax people but the VAT  (when I was in business I was told "upset the customs, upset the inland revenue but NEVER upset the VAT ") - a much lower value can be put on the ticket.  I understand a number of the US cycle companies are sending £1000+ frames to the UK with £200 tickets on them.  IF you get charged for the Tax it is a lot less, BUT if the customs man is clued up, or the postie is, you are looking at fraud charges.

R


bikeseamus

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Re: MZ skorpion ,connecting rod
« Reply #29 on: March 13, 2007, 01:54:05 PM »
OK

       Given these insane rules, howsabout we do this?

                     I buy the rod of your choice.

                            I send it to you as a friend, not a business.

 I charge nothing, make no profit, and am not in this bike thing to make money.
                                              That works for me if it works for you, and it seems to me that simply stopping by the
post office and forwarding it would take all of five minutes, and the post office is 1/2 mile from my house.

  In other words, no big deal, and the greedhead jerks gouging you for the rods can gouge elsewhere.

                Reasonable profit is one thing, gouging is an entirely different kettle of fish, and it stinks.

  Besides that, giving cash to greedheads empowers them.

                        So fuckem and feedum fish heads.                                      How's that?

  As for oil, you couldn't pay me to run 10 weight oil in a motorcycle, unless it was 20 below zero outside, and I would never run car oil in a motorcycle.
                                           Over here, they have restricted the additions of phosphorous and zinc in motor oils.

  If these are present in a worn out engine, they burn in the combustion chamber and pollute the air.   OK.

      On the other hand, you or I could generate 46556446475757875 times the zinc and phosphorous into the atmosphere simply by welding on a series of galvanized handrails, which has not been restricted.

  Phosphorous and zinc are among the best additives in any motor oil, but are only allowed in vehicles without catalytic converters here because they could concievably clog them up, and an engine that smokes would be pumping these bad components into the air.
                                           That's why the EPA has put the rule forward.

  We who run vehicles that share tranny oil with the crank need these additives more than anyone, as transmission gears shear oil lubricating long string molecules more than cylinder and bearings do.

   Zinc and phosphorous both have tremendous molecular shear resistance, so if we run oil without them, everything breaks faster and easier.
                                Over here, MA on the oilcan says it all, and if the oil can't pass JASO valve train torture tests it is garbage.
                    Maybe we have access to better oil over here, I don't know.

   One thing I do know. 

    Any oil over here that brags about greater mileage on the can has short molecules that will destroy cams, bearings, rods and starter clutches on bikes, as they have no film strength and no molecular drag.

  You may experience slightly better fuel mileage because thay are a little slipperier, but meanwhile your engine is grinding itself into junk and everything will wear out and fail at an accellerated pace.

    SAE rates our oils over here.  It stands for Society of American Engineers, so you probably don't have that rating on your oils.
          In the absence of that, I suppose you guys should run oils that are specifically engineered for four stroke motorcycles.

  Some of this information is sort of guarded, and oil companies over here don't like to talk about it, for obvious reasons.

  I know a guy who designs oils for a big company, but he also loves and builds high horsepower bikes and streetrods.

       That's where the information comes from.               Cool for now.              Jim