Japanese bikes after 1995 with 180km/h speed limit?

[george formby]

I have a Jap import which doe's not seem to be restricted or is de- restricted. Apparently, to derestrict it you have to replace the ECU with one from an export model. Owners of imports in the UK keep running into this problem. My speedo goes up to 180kmh but on a "closed, private road" will happily go off the clock before it runs out of puff. Not sure about other models or manufacturers but their is a load of info on t'web.

[awa355]

yeah, I think you are right - I have heard they have limiters at 300.

Way back in the early eighties a lot of big bikes had the speedo reading stopped at about 80mph ( 140 ks) . This was an American idea to make riders back off from riding too fast. The bikes went way past the final reading but the speedo stopped at the end of the dial.

[RDjase]

I've had 296 km/hr out of mine so far - so no idea what planet you've come from or the experience you've had when you were there LOL

www.cliffhanger.org.nz

enter a cliff hanger event and get it recorded officialy. You cant trust a speedo as accurate. They do the speed records for NZ

CLIFFHANGER PROMOTIONS
Carterton Flying 1/4 Mile (402 Meters)
Fastest Overall Friday, 20 November 2009
Name Bike Time
Mph
Kph
Dean Van Ingen 2005 Suzuki Hayabusa 1300 4.537
198.1
318.91
Craig Olliver 2001 Kawasaki ZX12R 1200 4.852
185.3
298.26
Daryl Archer 2008 Suzuki Hayabusa 1340 4.887
184.0
296.13
Stephen Rigg 2008 Suzuki Hyabusa 1340 4.93
182.3
293.50
Kerry Richardson 2005 Kawasaki ZX10R 1000 5.131
175.2
282.02
Stewart Rodwell 2009 Yamaha R1 1000 5.381
167.0
268.90
Ivan juggins 2004 Kawasaki ZX6 RR 600 5.56
161.7
260.25
Stan Lynch 2006 BMW K1200R 1200 5.659
158.8
255.71
Darren Knight Suzuki TLR1000 1000 5.693
157.9
254.18
Gavin Legge 2002 Honda VFR 800 5.99
150.1
241.59
Hamish Abel 1998 Honda Fireblade 919 6.008
149.6
240.87
Ray Ewald 1999 Suzuki Bandit 1200 6.143
146.3
235.57
Dave Jenkins 2002 Ducati Monster S4 916 6.702
134.1
215.92
Rod Ewald 2005 Hyosung GT 650 R 650 6.975
128.9
207.47
Doug Juggins 2001 Suzuki SV650 650 7.074
127.1
204.57
Mike Downham 2008 Triumph Bonneville 900 8.01
112.2
180.66
Neale Clarke 1977 BMW R60 600 9.721
92.50
148.86
Gavin Pahl 2009 Hyosung GV 250 11.601
77.51
124.74
Dane Foster 2009 Husqvana SM 610 576 14.374
62.56
100.68

[denefoster]

www.cliffhanger.org.nz

You could have at least cut off the shameful showing by my husky !

[RDjase]

You could have at least cut off the shameful showing by my husky !

low gearing on that day mate? Its a flying 1/4 aye , not a kart/motard trak lol.

What are the ratios like on your bike if you put tall gearing on it? has it got close gearbox ratios and hard to get off the line with tall sprockets

[denefoster]

low gearing on that day mate? Its a flying 1/4 aye , not a kart/motard trak lol.

What are the ratios like on your bike if you put tall gearing on it? has it got close gearbox ratios and hard to get off the line with tall sprockets

Geared for about 200, if the fuel pump is running ;p First run was just mucking about and it completely died in the middle of the second.

[RDjase]

Geared for about 200, if the fuel pump is running ;p First run was just mucking about and it completely died in the middle of the second.

Bugger, hate that, I did one years ago on my old road bike ,stock 1981 RD350LC, 179.8km.
good your out there and having a go safely and not just claiming what a speedo says

crazyhorses bike is as fast as a 2008 hayabusa...........

[Drunken Monkey]

I believe the "voluntary limit on jappa's is 186mph. Good luck finding out if you have a limiter.

This is normally either a carb "limitation" or a setting in the fuel injection..

Yep, 186mph = 299km/h. Hit it almost every time around the kink at Pukekohe. The speedo shows 299 then the revs stop going up.

[avgas]

Carterton Flying 1/4 Mile (402 Meters)

Lets hope they have a spare couple of K's either end - Otherwise how can you achieve top speed?
My RG150 took about 2-3km to get to its top speed. Back in the days

[avgas]

( requires entire new loom + bigger carbs)

Errr no - you just punch the washers/restrictors our of the carbs and exhaust. If your are changing the carbs it would be suggested that the bike is deviating from non-standard......e.g. speed restrictions no longer applicable.

[Big Dog]

Yep, 186mph = 299km/h. Hit it almost every time around the kink at Pukekohe. The speedo shows 299 then the revs stop going up.

Yes the kink is good place to find out.
Almost anything finds out its max along there. Unless it is far from factory.