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YZF_MXracer71

yz 450f DIYs

10 posts in this topic

I have a 2005 yz..

It is great and haven't needed any mods.

I did put on ac promotobillet kickstand though..

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You can modify every part on the bike but you need to figure out what you would like to change so your question isn't so general.

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With an '05, you'll get the most out of a Vortex ignition, or converting it to an '04 CDI (the Vortex will likely be both cheaper and simpler). The ignition map was what hobbled the '05's.

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How is the Vortex ignition comparable to the pro circuit ignition. THeres a $100 difference in price, the pro circuit at 499, and the vortex at 399. Does one do something better then the other? Also, how easy is the install? Just plug in and go? Thanks.

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I don't know what the difference would be nut PC charges a lot for their name sometimes.

whats up with the 05 ignition. whats the difference between the 05 and 04 cdi's
The ignition "map", or the preprogrammed advance curve the ignition follows was changed to soften the hit of the earlier models. Most think they overdid it.

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Had an 05 and the biggest thing my rider complained about was that it went flat on top end. White Bros Pro Aluminum pipe boosted power everywhere and let it keep pulling on top. Don't have the bike anymore, but still have the pipe if you are interested.

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How is the Vortex ignition comparable to the pro circuit ignition. THeres a $100 difference in price, the pro circuit at 499, and the vortex at 399. Does one do something better then the other? Also, how easy is the install? Just plug in and go? Thanks.

I just looked at the PC and JD Ignition sites, kinda vague on the descriptions, sounds like most of it's been translated also. It doesn't say anything about 10 different maps like the Vortex has, but they sell a "New" "driving" switch (handlebar switch that looks like the Vortex map switch). It looks like the PC (JD) model is probably made by the same vendor, but who knows who's programming it with what curves. The Vortex programs (afaik) are put togther by Mike Tolle at MT Racing, he works with the Yamaha team and is a really bright guy, he knows what he's doing. You can call and ask him questions and he'll have the answers, I'm not sure you could do the same at PC.

If it doesn't have switchable maps I wouldn't buy the PC one for that reason alone. Having the 10 different maps to pick from is good thing, they do change the power delivery. It's also vague about the software, I didn't see a price on the JD site. It's probably really expensive just like the Vortex software so it's not really an option, unless you have $800 to throw away on software that's probably not that good. Plus you have to know what you're doing to make a map that's better than what they've come up with, that's easier said than done.

I have a Vortex on my '06 YZ450, I'm happy with it. I think the bike needed it, it really helped the low end response. There are situations that turning down the "hit" makes it easier to go faster, all you have to do is flick the switch. I've also been using the "best '05 power" map for woods riding. For low rpm, low throttle stuff it pulls really strong.

As far as install goes, it's really easy. You do have to change part of the harness under the tank, but it all plugs into the stock connectors.

Here's some links...

http://procircuit.rideshop.com/catalog/default.php?cPath=5_167

http://www.jdracingignition.com/index.html

http://www.vortex-performance.com.au/

http://www.mtracing.com/home.htm

Hope that helps.

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