restoring & adding a modern touch to a 86 vf500

That'd would be fun to see what the difference is.

 

heres a video of our sunday ride at deals gap YouTube - Tail of the dragon July 25, 2010 Honda VFR

 

Wow.....VFR guy was goin slow for most of that video

There usually a lot of cops there?

 

Yeah that was a good ride there Matt, for those who think you can only haul ass on a busa ought to check out the miniceptor!

And yes, I wasn't going 100% because there are a lot of blind corners at the dragon, I've never crashed in my 45k miles of riding and don't care for the glory just to get there 5 seconds sooner.

 

I understand completely. :smile:

I got the wrong impression when I read the video description: "1999 Honda VFR chasing a 1985 VF500F"

I agree with you 100%...lots of blind corners. Better to take it easy.

 

"Originally Posted by JamieDaugherty
Some people claim that carbs can make more power. I don't necessarily agree with that, I think FI is a mystery to people who are used to carbs and therefore more difficult to work with. Frankly, I'd much rather use my laptop to tune my bike rather than pulling those darn carbs off everytime! That alone might justify the cost."

I know about carbs AND fuel injection.

Carbs are simpler than fuel injection?
The fuel injection has a throttle body JUST LIKE a carb.
The fuel injection has a fuel pump JUST LIKE VF carbs do.
The fuel injection has a controller UNLIKE a carb set up.
The fuel injection has injectors UNLIKE a carb set up.
The fuel injection has a fuel pressure regulator UNLIKE a carb set up.
The fuel injection has at least one oxygen sensor UNLIKE a carb set up.
The fuel injection has a map sensor (crank/cam position sensor) UNLIKE carbs.
You have to have an IBM style LAPTOP COMPUTER to tune a Fuel injection system and a carb only needs a SCREWDRIVER and CARB SYNC tool.
And if you want your fuel injected bike to really be tuned right it needs to be put on a DYNO. Ask Factory Pro experts about that. Because fuel air ratios with wide band oxygen sensors are still not that accurate. Garbage in-Garbage out.

There is no way you can say a carb is more complicated than fuel injection.

And you cannot ride it down the road with the laptop plugged in to see how it all works while it is in gear at speed. That is why you will need the DYNO time.

I agree about the ease of using a laptop computer and the benefits of fuel injection too but once the carb is tuned and set up you do not need to mess with it.

Fuel injection is better, but it has a lot of complex and sensitive expensive parts.

 

Yes you can bore it out .020 over to .040 over stock to get a bigger piston. Much more power can be obtained with a higher lift cam.
Or you can use stock size high compression pistons but that will cause more problems than it solves for a street bike.

 

Thanks for the post.

I'm not sure there is much to be gained with over sized pistons - but I'd like to hear more about this and the higher lift cam. Perhaps you could start a new thread on the 500's engine design and possible upgrades?

On this note, I had read in a article from back in the day:

"The trick is to know what's too much and what's not enough. According to Honda spokesman, the 500 engine is pretty much at its displacement limit." p.27, Cycle, July, 1984.

 

I do not know if a high performance cam was offered by any company for the 500.
I will check that out. Many sport bike riders just ride stock bikes so there are less high performance parts than there used to be in the past. Most up grades are for external parts like brakes ,shocks,and exhausts. Stuff that is easy to change.

 

Megacycle offers hardfaced performance cams and hardfaced rockers.

There has been some discussion on the VF500F valve train recently. Megacycle for cams and rockers - Kibblewhite or R/D Springs for performance spring kits and valves. It's a fairly substantial investment...

 

we will all find out how much performance we can get out of a 500 engine i go and pick up the spare motor nexxt month and then it begins!

 

joey i had a blast gotta do it again when its not so damn hot

 

I hear you man! I got a headache by the time I got home from all the freakin' heat!!! Next time we'll have to ride the cherohala!

 

i was wondering do i need to have a conver to fit a f2 rear tire on my vf500 n what other type of fairing will fit on it plz help

 

Willie - better to start a new thread then to jump onto one that is already insanely complicated. Also, no offence, but you will bet better responses if you write with a little better clarity and avoid the text-speak.

Regarding your questions: Look down over the last several pages in the 1st gen section and you will see a few wheel conversion threads. I think that there is one in the sticky as well. If your goal is just wider tires, you can go a little wider on the stock rims, but tire selection is limited.

You will also find in the following thread that Dannyhoo installed a GSXR fairing on his bike. He makes it sound easy, but I think that the average person might have a hard time making the required modifications.

http://vfrworld.com/forums/1st-2nd-generation-1983-1989/31513-85-vf500-w-body-mods.html

Good luck, and don't ignore basic maintenance and performance in pursuit of cosmetic mods. You can spend a lot of money on a bike that just ends up sitting on the laneway!

 

photo from killboy.com PhotoReflect - Powerhead Productions - killboy.com - Deals Gap - Sunday - July 25, 2010

 

Nice bike matt! Just finished the whole thread. I'm speechless.

 

Thank you I have a new thread started so stay tuned she will be getting a new front end new tail and a new engine!