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Old 04-23-2010, 01:16 PM   #46
BDKW1
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Joined: Jul 2006
Location: SoCal
Oddometer: 896
Quote:
Originally Posted by Dusty Rhodes
I seem to recall a 701 Maico back in the 70's ..????
There was a custom factory bike that raced the blackwater 100 race around 1980 that was in the 700CC range. If I remember correctly they used a Porsche piston of some sort for it.
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Old 04-23-2010, 01:47 PM   #47
badmanners
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Location: Sydney, Australia
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I knew it existed!

Had a horrible faint memory of as a kid reading about a Maico Isdt (?) 700and something cc two-smoker, which I think only had 3 or 4 gears and drank fuel like a bastard. Sure 1 of the american bike mags got a ride on it, didn't rev too far but massive torque, finally found a pic.

[IMG][/IMG]

Found some specs as well.....

NAME AND MODEL
Maico Mega 760
ENGINE TYPE
Two-stroke, piston port, air cooled, single
BORE AND STROKE
107.52mm X 83mm
DISPLACEMENT
752cc
HORSEPOWER
43.78 at 4000 rpm
CARBURETION
40mm Bing type V54
RECOMMENDED GASOLINE
Premium 92 + octane
FUEL TANK CAPACITY
9.51 liters (2.5 gallons)
FUEL TANK MATERIAL
Plastic
LUBRICATION
Oil in gas, pre-mix
RECOMMENDED OIL
Bel-Ray MC3
AIR FILTRATION
Oiled foam, in still air box
CLUTCH TYPE
Wet, all metal, multi plate
TRANSMISSION
Five-speed
GEARBOX RATIOS:



1
2.98:1
2
2.17:1
3
1.65:1
4
1.25:1
5
1.00:1
GEARING, FRONT/REAR
15/48
IGNITION
Pointless electronic Bosch external rotor
PRIMARY KICK SYSTEM?
Yes
RECOMMENDED SPARK PLUG
Champion N2 or N84G or NGK B9ES
SILENCER/SPARK ARRESTER
QUALITY Silencer only, fairly quiet
High-pipe right side
FRAME TYPE
Double down tube full cradle, chromoly tubing
WHEELBASE
1492-l528mm(60 inches)
GROUND CLEARANCE
345mm (13.58 inches)
SEAT HEIGHT
960mm (37.8 inches)
STEERING HEAD ANGLE (RAKE)
28.5
TRAIL
126mm (4.96 inches)
WEIGHT WITH ONE GALLON GAS
245 pounds (dry 238 pounds)
RIM MATERIAL
Aluminum alloy
TIRE SIZE AND TYPE:
FRONT
3.00 x 21 Metzeler nylon
REAR
4.50 x 18 Metzeler nylon
SUSPENSION TYPE AND TRAVEL:
FRONT
Maico telescopics 42mm tube, 310mm (12.2 inches)
REAR
Swingarm with dual Corte & Cosso shocks. 310mm (12.2 inches)
INTENDED USE
Experimental Six Days Competition
COUNTRY OF ORIGIN
Germany
RETAIL PRICE, APPROX
N/A-Only three in existence, This model not available
PARTS PRICES. HIGH.WEAR ITEMS:
PISTON ASSEMBLY COMPLETE
Don't ask
RINGS ONLY
Don't ask
CYLINDER
Don't ask
$20
BRAKE PEDAL
$24
FRONT SPROCKET
$13.20

DON'T ASK!


Cheers, badmanners.
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badmanners screwed with this post 04-23-2010 at 01:57 PM
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Old 04-23-2010, 07:10 PM   #48
dobbo
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Location: Riverina
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Unreal looking bike....
great if you want to ride on private property or an open track.

I love the big 2-bangers, for the fear factor more than anything

I had a Honda CR500 a few years back.... scariest bike I've ever ridden, on the MX track never had to get out of 2nd, awesome on the sand/mud flats.

but riding single track, was more suited to a 250cc machine.
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Old 04-23-2010, 07:31 PM   #49
enduro0125
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Location: Orchard Park,NY
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One For The Ages

The Maico 760
Rick "Super Hunky" Sieman
Link

Enjoy.
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Old 04-24-2010, 03:44 AM   #50
outback jack
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Location: Central outback QLD.
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Quote:
Originally Posted by badmanners
Had a horrible faint memory of as a kid reading about a Maico Isdt (?) 700and something cc two-smoker, which I think only had 3 or 4 gears and drank fuel like a bastard. Sure 1 of the american bike mags got a ride on it, didn't rev too far but massive torque, finally found a pic.

[IMG][/IMG]

Found some specs as well.....

NAME AND MODEL




Maico Mega 760




ENGINE TYPE




Two-stroke, piston port, air cooled, single




BORE AND STROKE




107.52mm X 83mm




DISPLACEMENT




752cc




HORSEPOWER




43.78 at 4000 rpm




CARBURETION




40mm Bing type V54




RECOMMENDED GASOLINE




Premium 92 + octane




FUEL TANK CAPACITY




9.51 liters (2.5 gallons)




FUEL TANK MATERIAL




Plastic




LUBRICATION




Oil in gas, pre-mix




RECOMMENDED OIL




Bel-Ray MC3




AIR FILTRATION




Oiled foam, in still air box




CLUTCH TYPE




Wet, all metal, multi plate




TRANSMISSION




Five-speed




GEARBOX RATIOS:









1




2.98:1




2




2.17:1




3




1.65:1




4




1.25:1




5




1.00:1




GEARING, FRONT/REAR




15/48




IGNITION




Pointless electronic Bosch external rotor




PRIMARY KICK SYSTEM?




Yes




RECOMMENDED SPARK PLUG




Champion N2 or N84G or NGK B9ES




SILENCER/SPARK ARRESTER




QUALITY Silencer only, fairly quiet








High-pipe right side




FRAME TYPE




Double down tube full cradle, chromoly tubing




WHEELBASE




1492-l528mm(60 inches)




GROUND CLEARANCE




345mm (13.58 inches)




SEAT HEIGHT




960mm (37.8 inches)




STEERING HEAD ANGLE (RAKE)




28.5




TRAIL




126mm (4.96 inches)




WEIGHT WITH ONE GALLON GAS




245 pounds (dry 238 pounds)




RIM MATERIAL




Aluminum alloy




TIRE SIZE AND TYPE:




FRONT




3.00 x 21 Metzeler nylon




REAR




4.50 x 18 Metzeler nylon




SUSPENSION TYPE AND TRAVEL:




FRONT




Maico telescopics 42mm tube, 310mm (12.2 inches)




REAR




Swingarm with dual Corte & Cosso shocks. 310mm (12.2 inches)




INTENDED USE




Experimental Six Days Competition




COUNTRY OF ORIGIN




Germany




RETAIL PRICE, APPROX




N/A-Only three in existence, This model not available




PARTS PRICES. HIGH.WEAR ITEMS:




PISTON ASSEMBLY COMPLETE




Don't ask




RINGS ONLY




Don't ask




CYLINDER




Don't ask








$20




BRAKE PEDAL




$24




FRONT SPROCKET




$13.20





DON'T ASK!






Cheers, badmanners.
Good find, looks like only 3 ever made to trial for the 6 day way back then. Interesting comparisons to modern day machines, 5 speed box, 43hp about the same as a new 450f, but at 4000 rpm 238 lb's dry weight 108kg is probably a touch lighter than a newie, the suspension..... well in 79 it was a plush ride
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Old 04-25-2010, 06:00 AM   #51
gavo
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Common sense tells me the 320 would be the best for me but the 82 horsie's just makes me wanna yell yeeeehaaaaa
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Old 04-25-2010, 06:13 AM   #52
gavo
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now this is a stroker that could scare the pants of you
http://www.twostrokeshop.com/TSS1100GP.htm
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Old 04-25-2010, 02:18 PM   #53
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Location: maitland, nsw
Oddometer: 531
Gotta luv the 2 bangers, No cam chain or valve adjustments or expensive repair bills, shit you can rebuild the motor with a 6 pack and a spare 2 hrs in an afternoon... as for scarey, go ride the ktm 300 exc 2 banger amazing with the adjustable on the fly mapping you can ride it like you stole it or it can be as tame as an old kl 250 ... I was amazed at the torque and low down grunt.. nothing like the old 2 bangers i used to own...
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Old 04-25-2010, 08:34 PM   #54
GTboy
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Oddometer: 101
Quote:
Originally Posted by jfn68
What would be estimated top speed of this apex predetor?,wasnt the ktm550 dxc "good" for 125mph tested by dirt bike magazine usa?,anyone who buys these giant 2 strokes gets instant legand status
Actually, it was the KTM495 that attained nearly 124 MPH, as tested by DBM back in '81.
The record has only just been broken (IOW the record was held by the KTM for 28 years ) by a KX500.

Check these out:
www.seven4racing.com/library__ktm__495__1981.htm
twostrokemotocross.com/2009/06/worlds-fastest-mx-bike-kawasaki-kx500

One of these (KTM's) came up for sale about two years ago - a mate of mine encouraged me to buy it, sight unseen, to either ride or restore.

It was in a pretty sad state when I got it home, but after a complete tear-down and refurbishment, is now ready for reassembly in time for Classic Dirt 7 at Conondale on the Queen's birthday long weekend.

I won't, however, be attempting to emulate the article above, later this year .


Cheers
GTboy
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Old 04-26-2010, 03:10 AM   #55
theMISSIONARY
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Location: Devonport Tazmania
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Had a ride on a mates Husky WR360 on the week end....and more power would not be a bad thing
don't know what the big deal about vibrations is my DR650 had more vib's the only thing is hanging on on rougher tracks than the DR could handle(at the same speeds ) will make your hands hurt....not the vib's tho

I sold the DR to get back on two stroke's....now just to find a CR500e or KTM540/550 for a price that wont kill me
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Old 12-28-2012, 06:43 PM   #56
rufus
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Joined: Sep 2004
Location: Coweta Oklahoma
Oddometer: 3,986
Quote:
Originally Posted by badmanners View Post
Had a horrible faint memory of as a kid reading about a Maico Isdt (?) 700and something cc two-smoker, which I think only had 3 or 4 gears and drank fuel like a bastard. Sure 1 of the american bike mags got a ride on it, didn't rev too far but massive torque, finally found a pic.

[IMG][/IMG]

Found some specs as well.....

NAME AND MODEL
Maico Mega 760
ENGINE TYPE
Two-stroke, piston port, air cooled, single
BORE AND STROKE
107.52mm X 83mm
DISPLACEMENT
752cc
HORSEPOWER
43.78 at 4000 rpm
CARBURETION
40mm Bing type V54
RECOMMENDED GASOLINE
Premium 92 + octane
FUEL TANK CAPACITY
9.51 liters (2.5 gallons)
FUEL TANK MATERIAL
Plastic
LUBRICATION
Oil in gas, pre-mix
RECOMMENDED OIL
Bel-Ray MC3
AIR FILTRATION
Oiled foam, in still air box
CLUTCH TYPE
Wet, all metal, multi plate
TRANSMISSION
Five-speed
GEARBOX RATIOS:



1
2.98:1
2
2.17:1
3
1.65:1
4
1.25:1
5
1.00:1
GEARING, FRONT/REAR
15/48
IGNITION
Pointless electronic Bosch external rotor
PRIMARY KICK SYSTEM?
Yes
RECOMMENDED SPARK PLUG
Champion N2 or N84G or NGK B9ES
SILENCER/SPARK ARRESTER
QUALITY Silencer only, fairly quiet
High-pipe right side
FRAME TYPE
Double down tube full cradle, chromoly tubing
WHEELBASE
1492-l528mm(60 inches)
GROUND CLEARANCE
345mm (13.58 inches)
SEAT HEIGHT
960mm (37.8 inches)
STEERING HEAD ANGLE (RAKE)
28.5
TRAIL
126mm (4.96 inches)
WEIGHT WITH ONE GALLON GAS
245 pounds (dry 238 pounds)
RIM MATERIAL
Aluminum alloy
TIRE SIZE AND TYPE:
FRONT
3.00 x 21 Metzeler nylon
REAR
4.50 x 18 Metzeler nylon
SUSPENSION TYPE AND TRAVEL:
FRONT
Maico telescopics 42mm tube, 310mm (12.2 inches)
REAR
Swingarm with dual Corte & Cosso shocks. 310mm (12.2 inches)
INTENDED USE
Experimental Six Days Competition
COUNTRY OF ORIGIN
Germany
RETAIL PRICE, APPROX
N/A-Only three in existence, This model not available
PARTS PRICES. HIGH.WEAR ITEMS:
COMPLETE














Dirt bike nagazine did a test on the 760 Maico back in 1981. Rick Sieman (editor) rode it in the blackwater 100.
It wouldn't make a 20 mile loop on a tank of gas. That would mean it got LESS than 10 mpg.
It had 26 horsepower at 1200 rpms ! It only revved to about 4000 rpms
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Old 01-03-2013, 03:50 AM   #57
Ian Robinson
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Location: Castaways Beach. QLD.
Oddometer: 286
Know nothing bout the 700, but the old 501 had some grunt.
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