How fast is your XJ

I've only had my 1980 XJ650 for a few months now, but have'nt had a chance to ride it due to the need of repair.

Im just curious about it because, i've hered that thiese bikes can really move, although the speedo only goes up to 85 mph on my bike.

Is 85 mph what i should expect from my XJ650 after i get her up and going?

 

i have a XJ 550 and it will do 110-115 tops. Its actually a lot more fun to ride below 85 though because thats when they really perform. When you get goin above that the acceleration peters off. But still a lot of fun.

 

110-115 ha, thats not bad, dont plan on going that fast though, atleast knowing i can is nice. I just dont want to hit 85 mph and the thing to turn into a big turd. Yeah my brother had one of those 1 cylinder Suzuki 650's that would only get up to 80 mph.

 

ya. like i said, its a lot more fun from 0-85 than it is 85 plus. And i have still spanked an harley guy that has ever wanted to race me so thats all i need to stay happy!

 

I've had my XJ-750 Max up to 80
Several times.
I wish I knew how fast I was really going.

I remember, this one time, i got going so fast the front tire burst into flames just before stretching into another reality just ahead of me.
I had it wide open and was dying to get a look at what was on the other side of the Warp, but couldn't get anymore power out of it 'cause I was runnin' on regular gas.

 

lol. Thats when a Mr. Fusion comes in handy rick! You can just rip your gloves off and shove in the Mr. Fusion and Walla! Instant go juice. My Mr. Fusion is made of solid Unobtanium!

 

Uhhhhhhh.....probably a whole lot faster than I want to handle! Went passed the age (looong time ago ) where I thought I was immortal or even invincible (too many scars to prove it :roll: )...

skillet

 

I'm curious about the same . New i think the 650s were good for ~120 Mph. On a bike without a fairing that has to feel more like 300 haha! All i know is that my 650 has enough pep to straighten my elbows, which is all i was looking for performance wise... C'mon spring!!!

 

Yeah i here ya, 120 mph i believe is more than enough anyone.

 

Top end for the XJ650 was a claimed 127mph; for the 550s about 115.

Since all Yamaha mechanical speedometers are basically the same (some subtle differences) swaps such as this are possible:



NOS XJ900 (I think) speedo in XJ550 Seca cluster.

I like to know how fast I'm going.

 

I'll let you know after I get the flux capacitor fixed

 

1983 xj1100 VERY FAST!!!!!!!!!!!!!!!!11

 

had my 81 650 at 90 thanx to a freind on a harley behind me

 

i have a 550, and id say "fast enough" then again i have only been riding a few weeks.It accelerates to 60 quicker than my old firebird did, and i have got it up to 80 and it still had plenty left, and weigh close to 300. I start feeling unsafe past 70, this bike seems to like 60-65 for cruising.

 

Fitz, your bikes are just too clean. Makes me ashamed.

 

The fastest I ever traveled on mine was 105.

I'm actually really interested in finding out the top end on this thing. Anyone taken a stock xj 700 to the limit?

 

Cool guages there (bigfitz52) yeah im planning on a better set for mine when i get closer to completion, just have to figure out who has a good speedo @ tach for my 1980 XJ650.

Your set up is really clean looking and all, but was thinking about placing mine down by the tank.

 

I've had my 550 Seca up to 180!








KPH.

 

i've had mine to 105mph as well with a little throttle left.
the road was not the best and i had a 20mph head wind
(it's always windy here). :cry:
prob wont try for a higher speed.i like my bike too
much to chance blowing a motor :wink:

 

i have had my 550 up to about 125mph

was running off road fuel and had a slight tail wind

leaded gas makes these bikes happy but run lean

 

top end on my bike was clocked at 117, it was more fun going from 55 to 75 though. Once I replaced my clutch tension springs it sang at 6000 to 8000 rpm. Didn't know they would make that much difference, they were about 2mm compressed. This winter I'm replacing the cam chain and checking the rings while I'm at it so I'll let you know after that gets done. I really don't care about the top end its getting there thats the blast

 

Bike has 6 gears. It will go 65mph in 3rd gear. All I need to know.

 

Back in the day most of the magazines tested the Turbo to 138 with the power-up kit. It also has the Federally mandated 85MPH speedometer! Clearly Washington has not gotten any smarter in the last 25 years.

 

I've gotten Maxine up to 110. I get a little braver each time. Scares me sometimes the power of this thing. One day I'll probably blow her out. That'll be a sad one
-Chris

 

I don't drive my 750 Maxim on the highway much - mostly a city bike. I can tell you, unless you're in a new Porsche 911, or a sub 5.0s 0-60 car, all you see are my tail lights every time. Sometimes it scares me with the launch power.

I've had my bike up to 110mph with lots of rpm left for the throttle too in 4th gear. I'm guessing I could of had it up to 130mph but that is very unwise on a bike that is over 26 years old.

 

Be ready if you pull up beside a Subaru WRT STi 0 to 60 5.1 or a Mitsubishi Evolution (Lancer) 0 to 60 5.3.
Here’s my 4 wheel best 0 to 60 1991 300ZXTT light mods a couple of yrs ago.

ab

 

Hey Mestnii,
I got an 85 Maxim XJ700 stock...got it going about 117 mph and called it quites. I don't think it had much else but neither did I. I won't be doing that much again, I'm liking living and being able to see the world around me.
P.S. I really enjoyed your trip to CA thread...you are an excellent writer...very captivating.

 

http://www.youtube.com/watch?v=SFv1Yu-K ... re=related

To anyone who has yet to do "the ton" , this guy is going 100 MPH on a pulse jet bicycle with little gear or brakes. It's a bit loud.
Check out his various vids on Youtube.

http://www.youtube.com/watch?v=nELqJwd0 ... re=related

Or 146 MPH using a more traditional rocket. Still on a bicycle.
Be safe, of course.

http://www.youtube.com/watch?v=5V2FgwN_re4

And you can go 82 MPH on just a half horsepower.
We need to work on our aerodynamics !!

 

I have so far clockd 160km/hr equals 100mph on XJ700 Maxim, wasnt a good weathr/traffic on hwy to do more..waiting for 2010 season to come. Am sure Maxim X would do better !!

 

I've had my 650 to about 105, thanks to my buddie's speedo. And, that was -about- all she had for I wasn't going to wrench the guts out of her. And with no fairing to speak of ... that was frickin wicked. Plenty fast enough for me.

I agree that the majority of fun though is in the legal speed range, which only sucks a little bit.

 

I've seen 245 km/hr (flat out), on both of the XJ900s I've owned. A bit over 150 m/hr. Just to see what they do.
Dunno how accurate the speedos are.
The scenery kind of explodes at you at that speed.
I don't think I'd do it these days.

 

can you get this to work on a 82 xj11? i hate my cluster, its ugly , and only tops 80mph

 

I've had my 650 Maxim up to about about 115/120 MPH. I weighed about 245-250 lbs at the time. And on grooved pavement as they had the highway prepped for re-paving. There was some throttle left too, but the rpm's were up there. Too bad these bikes didn't have a 6th gear/OD.

 

I have an 82 750 Maxim that I've made some pretty minor upgrades to (Header with Straight pipe, removed Airbox and installed Pods on Factory Arbx Boots, Rejetted Carbs to #130, installed new Clutch Plates with 30% Stiffer Springs, and was able to cut the weight down to 455 with full Tank) and it has responded very well. 0-60 in 3.7-3.8 (Depending on My launch) and My Speedometer Claimed 143 in 5th Gear at 9000rpm. I didn't believe that for a second so I had My GPS Speedo on and it claimed 136. It will wind out to around 12k if I let it, but every time I've done that was on Accident.. I also have Nitrogen Rear Shocks with the front end lowered 3.5 Inchs. Its no R6, but it's a blast on a nice winding back road.

 

It will go fast enough to collect more speeding tickets than I can afford............