restoring & adding a modern touch to a 86 vf500

no not yet there still not done yet but no biggie i should have them by the end of this seasion

 

Expired today with no call back =(

 

bummer dude


heres a video http://www.youtube.com/watch?v=DLZ55gUVJUQ

 

so your gonna be running 32mm carbs now, up from the 30 mm original carbs? cool!
and with the bigger coils hopefully youll be able to gap the plugs a little wider a burn more fuel.
not sure about the jetting, but with more spark and colder plugs maybe you can go a little leaner safely and make more power... not sure...
but it sounds like fun lol

 

Thank you for the video post. Your project bike looks to be coming together nicely - congrats!

Re. the Accel coil install - could you please explain a bit more about the advantages of this set-up?

 

I'm interested too.

Unless you are doing something to the bike that you are keeping secret it doesn't seem like a very useful mod......especially when the Accel coils aren't really known for their longevity.

What's the price difference between those and a New set from Honda?

 

It's all about performance. The Accel coils might not show up much on the dyno, but you will feel the difference in the throttle response. They also improve starting too. The bike fires right up with those coils.

I've never heard of any problems with the Accel motorcycle coils. Can you explain where you are getting this info?

 

Not the motorcycle coils. I mentioned earlier that Accel coils (in my experience with cars) have always lasted much shorter than Factory coils.

Jamie, If you're saying the Motorcycle coils are different than I will take your word for it


Again, I have to ask (and I'm not trying to put down the mod or trying to start an argument. I'm just trying to get all the facts. Cause if it's a good Mod I may want it)

Do our Bikes have issues starting? Mine fires up right away.

....and my throttle feels like an On OFF switch sometimes.
Is it usual to have a bit of lag from the moment you turn your wrist to the moment the bike starts to pull?

Will the Accel coil supply a more consistent, strong spark than the factory coil?

Is it more efficient in some way?

 

I would have to say that thats carbs for you... it take s a wee bit of time to mix air, fuel and deliver said mixture..... a lot slower that FI

 

You might be surprised at how strong the engine comes to life with the Accel coils. Throttle response is also not the same as OFF-ON, it has to do with turning the throttle and getting immediate response from the engine. It's something you have to feel to understand, unfortunately.

Accell makes a good product. I'm not sure how they compare to the automotive parts (which I've also had great luck with, by the way) but I certainly would not avoid them based on quality. Coils are a robust part of an ignition system and almost never let you down, regardless of manufactuer.

 

Thank you for the post Jamie.

Could I ask, are the Accel coils typically paired with suppressive core wire? I've read mixed reviews on this type of spark plug wire and that copper core with resistor plug caps are a better way to go.

I also have experienced this first hand with my CB400F project bike. There was a big improvement when I switched to Dyna coils, over stock, but I had issues with the suppressive core wire. I switched to copper core and in the case of my 400F - non-resistor plug caps - and this made a marked improvement.

Any intel would be most appreciated!

Thx.

 

I wonder if the Accel coil "waking the bike up" is just a matter of installing a new coil over an old 20+ year old coil?

If not, would it still be felt on a VF500 in stock form?

 

wow i missed alot heres some more pictures and a video!

http://www.youtube.com/watch?v=8vaUlx33UWM

 

i'll make it clear to everyone. i want a 500 that makes 80 rear wheel horse power a 500 that has no top end issues all the bolt on aftermarket power adders are to help me get there the accel coils a known around the world for the performance i might see a 1-2 horse power gain mybe if im lucky but its just ground work for what to come. as for just replacing stock coils with stock coils the only way i would do that if my stock coils where bad or going bad i doubt your going to see any kind of performance throwing new OE coils on it

 

Thank you for the post.

Your coil upgrade is interesting. If I could ask - could you post the specifications on the coils (primary and secondary resistance, voltage output, etc.), the plug wire (wire dimension, copper or suppressive core) and the type of spark plug caps you are using?

Your radiator upgrade/redesign also sounds very interesting - please keep us posted!

Thx!

 

so basically, right now, you're prepping the bike with basic bolt on mods, for the real mods that are going to get you to 80 whp? but, still keeping the 500cc displacement? and i assume we're staying normally aspirated right?
so i guess it goes with out saying you're gonna need to bring the compression way up and get a hold of cams with with some pretty radical specs, to reach the 80 whp goal?
maybe pull the heads, give them a good port and polish, mill them down to bring up the compression, and time the cams to follow suit, or do we have something bigger planned?

 

yes sir you hit the nail on the head i will be boring the motor as much as i can. no forced induction..lots of money and work but i really believe i can do it with the help of a few people and a pile of cash lol with its light weight i think you could be able to hang with alot of newer bikes!

 

here you are http://www.accel-motorcycle.com/pdf/ImportCoil_Chart.pdf

ACCEL Motorcycle :: Product Details


couldnt find any info on the non cdi coils

 

this is going to be a very interesting build. u got my full attention. :biggrin:

 

Keep in mind that 80hp out of a VF500F is not only impractical, it might not be possible with the stock bottom end. By my best guess I would say that the stock crank and rods could handle about 75hp. That's a big jump over stock and would take thousands of dollars and many custom parts to aheive. Even with compression, porting and cams you would be lucky to get close to that number. Figure on about $2000+ for that work.

I'm not trying to burst anyone's bubble - I'm just trying to keep it real. The 500's are a GREAT bike...... but will never be a power house. Improving on what it's already good at (handling) will result in the most fun.