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QUOTE FORM MADDOG


Read this first before purchasing or posting about these shocks, most of your quesitons have been answered here or in the following replies.


THE OEM YFZ REAR SHOCK WILL NOT WORK ON THE 660 RAPTOR, the linkages are opposites.



Installing OEM YFZ front shocks are a very common suspension upgrade for other Yamaha sport quads. Here is a little info on them for those in need of answers.

Price:
Prices can range from 100 dollars to 600 dollars for a set of OEM front YFZ 450 atv shocks. Dealers, quad shops, and salvage yards typically sell them for 300-600 dollars, ebay price is usually in the 175-250 range and personal classified ads are the cheapest bet at 100-200 bucks. However buying from another individual online is more risky than the other two options so be cautious with who you trust to send your money to. The best forums to try are those devoted solely to the yfz450, but most other forums with a significant sport quad membership will have a set or more for sale as well.

The change in ride height will depend on quite a few factors so not all bikes will be have the same way. Heavier riders and bikes with extended a arms will find the front end will sit lower than others. Preload is the major contributor to ride height, when you reduce preload down all of the way you will be at your lowest possible ride height but you will not have as much absorbtion when you try to land a jump. If you crank your preload way up to the top the bike will sit taller than it did with the stock shocks but you will have a much larger buffer against bottoming out. The settings you choose for this and other adjustments will depend on your bike, your riding type, your riding style, your weight, and eventually your personal preference as well. The best thing to do here is experiment.

One possible method of installation:
Quote from: doubt on September 02, 2005, 11:24:21 pm

Everyone knows throwing a set of YFZ450 front shocks on the Raptor is the ultimate suspension mod for those that don't want to break the bank. I found a used set of 04 front shocks from www.yfzcentral.com for $120 shipped, I was sold. They arrived within 4 days. Thanks yfz guy whose forum name I forgot! Removing the stock shocks was simple enough, jack up the front end and loosen the bolts. As for installing the 450 shocks, there’s a little bit of modding to be done. First thing you need to do is grind a tiny bit off the top brackets so they fit properly without any rubbing.



Since the yfz shocks are a little longer then the stock you have to cut out a small square in the a-arms to allow the 450 shocks to fit. I took a drill and bored my way through the center upping the bit size each time making the hole big enough for me to fit a grinder in there to square off the hole. This was relatively simple but you may run into problems without the proper tools.



Most installs I’ve seen grind off a bit of the a-arm bracket to allow the shock to fit, I decided to grind off the shock instead leaving the bracket with more metal/strength. You can also grind off some of the bottom part of the shock to avoid having to drill through the a-arms as well.



After that they should bolt up just fine and be ready to ride! There's no doubt about it these shocks work awesome for the raptor and make the ride much better whether you're racing mx or riding the trails.
I give the YFZ450 front shocks a 4...out of 5 smile[/i]
 

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you could probably get away with using a dremel. if not, just use a regular grinder or one of those grinders that work with a compressor.
 

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just wrap the sand paper around something small and round and it will work just fine
 

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I used steel wool to round the edges:thumb:
 

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I used a drill at the corners and then a high speed to cut the lines, turned out great! thanks for the How-TO!!!!!-Swanny
 

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I just installed a set of 04's i got for sixty bucks off of ksl. This made my job way easier. But i got the top brackets trimmed down and wanted to see if i had enough trimmed off so i bolted them up. They worked so i was looking at them and i had the front jacked up and it looked like they would fit with out cutting out the bottom of the a-arm. So i tryed it(notch all ready cut out of the shock) and they bolted right up with no broblems? I dont know how or y i they worked but they did! Thanks alot for posting this how to!! It is greatly apprecatied!
 

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Does the shock rub on the bottom? i see that its cut out. I think mine rubs a lil but i wasnt sure if i should grind it away some or not.
 

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Ive seen people use a hammer and punch to put a dent right under the shock mount too... Works

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QUOTE FORM MADDOG


Read this first before purchasing or posting about these shocks, most of your quesitons have been answered here or in the following replies.


THE OEM YFZ REAR SHOCK WILL NOT WORK ON THE 660 RAPTOR, the linkages are opposites.



Installing OEM YFZ front shocks are a very common suspension upgrade for other Yamaha sport quads. Here is a little info on them for those in need of answers.

Price:
Prices can range from 100 dollars to 600 dollars for a set of OEM front YFZ 450 atv shocks. Dealers, quad shops, and salvage yards typically sell them for 300-600 dollars, ebay price is usually in the 175-250 range and personal classified ads are the cheapest bet at 100-200 bucks. However buying from another individual online is more risky than the other two options so be cautious with who you trust to send your money to. The best forums to try are those devoted solely to the yfz450, but most other forums with a significant sport quad membership will have a set or more for sale as well.

The change in ride height will depend on quite a few factors so not all bikes will be have the same way. Heavier riders and bikes with extended a arms will find the front end will sit lower than others. Preload is the major contributor to ride height, when you reduce preload down all of the way you will be at your lowest possible ride height but you will not have as much absorbtion when you try to land a jump. If you crank your preload way up to the top the bike will sit taller than it did with the stock shocks but you will have a much larger buffer against bottoming out. The settings you choose for this and other adjustments will depend on your bike, your riding type, your riding style, your weight, and eventually your personal preference as well. The best thing to do here is experiment.

One possible method of installation:
Quote from: doubt on September 02, 2005, 11:24:21 pm

Everyone knows throwing a set of YFZ450 front shocks on the Raptor is the ultimate suspension mod for those that don't want to break the bank. I found a used set of 04 front shocks from Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums for $120 shipped, I was sold. They arrived within 4 days. Thanks yfz guy whose forum name I forgot! Removing the stock shocks was simple enough, jack up the front end and loosen the bolts. As for installing the 450 shocks, there’s a little bit of modding to be done. First thing you need to do is grind a tiny bit off the top brackets so they fit properly without any rubbing.



Since the yfz shocks are a little longer then the stock you have to cut out a small square in the a-arms to allow the 450 shocks to fit. I took a drill and bored my way through the center upping the bit size each time making the hole big enough for me to fit a grinder in there to square off the hole. This was relatively simple but you may run into problems without the proper tools.



Most installs I’ve seen grind off a bit of the a-arm bracket to allow the shock to fit, I decided to grind off the shock instead leaving the bracket with more metal/strength. You can also grind off some of the bottom part of the shock to avoid having to drill through the a-arms as well.



After that they should bolt up just fine and be ready to ride! There's no doubt about it these shocks work awesome for the raptor and make the ride much better whether you're racing mx or riding the trails.
I give the YFZ450 front shocks a 4...out of 5 smile[/i]

I was thinkin of gettin a set of "Full Flight +2 (DOM) A arms" . I dont got a ton of $$$$ and I dont race just ride for fun. I was just wondering if the shocks would just mount right up without a MOD to the A arm its self.
 
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