Power restrictions

Is there a power restrictor mod for the xj700maxim ?
What is the power of the xj700maxim?
What is the power to weight ratio of the xj700maxim?

Thanks

 

Power restrictor mod? Idk if there is one. dont start it thats a great way to restrict the power
A 1985 xj700 has 86hp and 45.6
Power to weight ratio is
0.171hp/lb
All that is according to google

 

The only way to restrict power would be smaller carbs, or lower lift cam.
Neither of which I am aware of.

There is always a smaller engine swap to a 650 for a lower power option.

I'm guessing first bike, and a learners license?

~Ghost

 

45.6 ft-lbs torque

 

The power restrictor is the thing on the right side handlebar that you grab with your hand . Its called a throttle, don't twist it so much.

 

There's TWO of them there---the other is the black lever that you grab and pull

 

Is it a Maxim "X" model has 86hp but air cooled one is less
.You could use an electronic rev limiter to keep a new rider from going throttle happy ! The other way it to put a small piece of pipe into top of throttle slide to restrict the full vertical travel.

 

Thanks for all the smart arse comments.

I asked because a new rider on a restricted license wanted to buy my bike, only if there was a restrictor kit for it to pass UK law


It looks like I'll have to keep it for now

 

Three power restrictors really (besides the two mentioned above).

Run it past redline for an extended period of time. A valve will drop and you will have a 100% power reduction.
There are no governors of any sort on motorcyles of this era.

The only way that I know of to lower the power is to insert restrictor plates between the carb abd the intake. Those you'd have to fabricate, and I don't think you'd limit power enough to make it legal for a learner's license.

 

I wouldn't reccomend that one. Too much risk of damaging the diaphragm.

 

I would like to know more about that. Explain what a restricted license is and why you need to restrict the HP of a bike

 

it would seem to me that someone would look in a book and say that X bike has Y horsepower and that would be that

 

It is a UK reg. Meant to keep new riders away from big high powered bikes while they learn how to ride during the first year.
Lower HP limits restrict the rider to smaller, easier to handle bikes as they develop their riding skills.

~Ghost

 

Not a bad idea, how do they determine if a bike is too powerful ? Are they just looking at engine size? A xj700 is small and not a bad first bike.

 

While I am not sure what the limits are. My understanding is that they use the power to weight ratio of the bike.

~Ghost

 

Same way they do it here, but there is an approved list and nothing over 660cc

 

I think the power limit for the 'base licence is aroun 46 BHP - popular low power bikes are Suzuki GS500 for example. For the OP I think you can get a restrictor kit for the XJ600 diversion (Seca 2). The bikes are plentiful and cheap a great first bike option IMO.

OP note that this is chiefly a USA site, some explanation of why you you wanted to lower the power may have restricted the 'smart arse' comments .

 

[QUOTE="
OP note that this is chiefly a USA site, some explanation of why you you wanted to lower the power may have restricted the 'smart arse' comments .[/QUOTE]

Agree.
Would a simple throttle stop pass as a power restrictor? Some sort of fabricated device to limit the amount of throttle that can be applied.

 

Less horsepower is not the American Way!

 

We prefer to go the other way.

 

And that's coming from a Canadian!!!!

 

I live in least regulated state in the USA...we don't even have vehicle inspections...

 

Kids stuff. look what this Brit built in his shed - seriously..

 

Pfft, only 10 cylinders? Try this on for size:

 

I bet he's got a very nice shed, too.

 

A bit ungainly I would say. If you want a 12 potter try Allen's KZ2300

 

Allen Millyard builds some awesome and crazy motorcycles

 

Ugh. Sometimes, less is more.
(Referring to the star spangled monstrosity... the Trump of motorcycles?)

 

Alright, one more, only because I think it leaves little to the imagination as to what building large bikes like this is all about.



I don't think there are too many 12 cylinder bikes that could be considered "gainly", but that KZ is about as close as it comes, I'd imagine.

 

He does. And the free time to build so many interesting machines, including a HUGE V-twin based on radial aircraft cylinders.

 

FJ1200, which is basically the son of XJ, with a very similar engine, used different carburetor boots/holders when sold in Germany in order to clear their HP regulations in some way. They have a smaller internal diameter, and with all other things being equal lower the output of the engine.

If you really wanted to use an XJ as a low-power bike the way to go would be restrictor plates fit between carbs and engine.

 

I'm suggesting a small piece of pvc that would fit inside the spring and not touch the diaphragm

 

Ok Back on topic. Get an XJ600 Diversion (seca2) and fit these.. much better option all round.

 

Yes there is, just Google alpha technik xj 700 and there it is, a 25 kw kit.

 

This is the européan way....

 

Not as many cylinders, but ......there's always:



'ROADOG"

Dave F

 

Current world record holder--- 48 cylinders

ByHertfordshire Superbike Centre

Dave f

 

I bet doing valve clearances on THAT one sure would be confusing! Lol

 

I love that bike, and the story behind it. Best use of a Chevette ever!!

 

2-stroke. Meanest sounding bumble bee...

 

K-moe said, "I love that bike, and the story behind it. Best use of a Chevette ever!!"

I think the best story I ever heard about him was how he would just call up a buddy, or someone...and ask if they want to ride down to get a steak and fries----- then after pick-up, ride down to TEXAS, eat, then ride home.

 

I saw one of those American Picker type shows where they tracked that thing down and one guy was able to acquire it. Still ran when they pulled out of barn. Great story behind it.

 

There two of them. The important one is in a museum.... The other own privately.

 

We'll there goes my night. Once kids are in bed I'll be googling....

 

What's in The Barn was the show. Dale Walksler of Wheels Through Time museum in North Carolina. He didn't get to buy it, but a dealer he knows did.

 

Yup, that was it. Yes I recall the end where Dale got there and the other guy was there first. I didn't know there was two and I'm curious on the story.

 

Yup, that was it. Yes I recall the end where Dale got there and the other guy was there first. I didn't know there was two and I'm curious on the story.

 

I don't have a link, but the full story (as I recall) is that the bike pictured above wa a prototype, and the bike that was on that show was the first re-work of what was going to be a production machine. He started building frames and was advertising them for sale as complete bikes to be built on order when there was a police action of some sort about a drug deal, which resulted in a shootout and the bulder's death.

 

Yeah, that show was pretty awesome. Learned a bunch about antique bikes from Dale.