WTB: Flywheel Weight for '86 KX500

[SupermotoFan]

According to Steahly.com, 86-89 took a 16oz. weight.  I do not know if there are any other brands available.
While I realize flywheel weights are controversial, it sounds like it might be good for my type of riding.

SupermotoFan
'86 KX500
Las Vegas, Nevada, USA

[Danger4u2]

I just bought a flywheel weight for my '04 K5 from Steahly.  In my invoice pack it had a list of sale/discontinued items.  They were selling older model weights for the KX500, call them for details as I can't remember what years.
http://www.steahlyoffroad.com/weights.php?s_description=kx500&s_make=Kawasaki&s_category=1

[SupermotoFan]

Thanks for the info on the discounted parts!  For now, I'll try to hold out to see if someone has one used.

Cheers!

[kxaddicted]

Cheers!lol but why would u want to put weight on ur flywheel?wouldnt that reduce power or something to that effect?hey, I dont know everything if u think its a dumb question
ignorance is bliss...

[MadKaw]

it doesn't reduce power, but it adds rotational weight to spread out the power "hit" that occurs in 2-strokes. some people like the power, but not particularly the snap of the powerband. also in some types of riding the weight will help in low RPM riding in tight areas and technical trails.

basically it smooths and spreads out the power curve.

to each there own!

[Danger4u2]

Quote from KXAddicted:  Cheers!lol but why would u want to put weight on ur flywheel?

I put one on because I do alot of woods riding..... picture tells the rest.....

[alan]

I moved this topic, because I want to revisit this topic. I also purchased Steahly flywheel weights and I have not installed them yet. I am wondering how they decided on that amount of weight. I want to experiment with different amounts of weight. So has anyone already done this?

Alan

[hughes]

I moved this topic, because I want to revisit this topic. I also purchased Steahly flywheel weights and I have not installed them yet. I am wondering how they decided on that amount of weight. I want to experiment with different amounts of weight. So has anyone already done this?

Alan

If you were to add weight wouldn't it need to a balanced weight? I was thinking that's one reason the weight is round in shape, if you add weight to one side of the weight I suspect it could cause some issues. Or could you add weight to each side just be 180 degree from each other. Alan I guess with your machine shop you could mill one of the weights down and weight it. Start with a 14 oz weight and make a 10 oz out of it.

[alan]

I was thinking of using multi disc to maybe ad in 1/2 oz increments.

[quincyman]

I have two flywheels for my 500. One I use the stealthy 14 oz. which is the heaviest they sold at the time.

The other is welded on to the flywheel by Aloop. It is a 16 oz. although they will weld on any weight you want.

Here are some of the positives of a flywheel weight from my point of view.

1. The greater mass helps the bike start easier.
2. The greater rotating mass makes the bike more difficult to stall in the tight technical woods and rocks.
3. It helps smooth out the power delivery in the slow stuff which is really important to me. The bike will still perform like a 2 stroke if I wack it but it will lug out better with less wheel spin when taking off on a hill.

Of course all of this demands throttle control and there is no way to get away from that on a KX500.

[Platypus]

Just thought I'd throw this out there.  It's something I read a few weeks ago and is from Yamaha's website.

*NOTE: Flywheels are measured by inertia weights because the affect of the weight differs depending on where it is in relation to the center of the crank. So a 4 oz. and 6 oz. weight might have the same affect depending on where they are positioned in relation to the center of the crank.

[gil2264]

Gee... What timing for this post.  I just got my 14 oz. weight...havn't had time to put it on yet.

[KXcam22]

That yamaha blurb is a good description.  The action of a flywheel weight is based on inertia and not just weight. Inertia is a function of weight and it's distance from the center of rotation.  In the old days we used to make brass bands (not the kind you listen to) on a lathe and shrink them onto the outside of the stock flywheel.  A friend put 3 lbs of brass on his KTM 420 flywheel (in stages).  Was weird to ride but definitely tractible (until the end of the crank broke off from all the weight).  To add weight with a steahly, it may be possible to machine a heavy disc and use the holder attachment bolts to bolt it on to the face of the flywheel.  I was considering going the other way and machining a steahly down to give about 10 oz.  Something I want to test this summer.  Just some thoughts. Cam.

[alan]

That is the way I want to go is less weight not more! I am still looking at the Stealthy to see how to remove weight.  I don't like the heavy strip that holds it on either.

Alan

[OrangeDawg]

I put a 10oz on my '02 K5 and really liked it. Easier to start, easier to ride slow in rocks, still accelerated hard as ever. I could only feel it when I started the bike and when riding real slow in the rough.