Stock Swing-arm Extension - Yamaha Raptor Forum
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post #1 of 30 (permalink) Old 03-04-2009, 11:37 AM Thread Starter
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Stock Swing-arm Extension

This is a short article explaining how to extend you stock swing-arm.

Several things you must take into consideration is: Do you have the ability to cut it straight?
Do you have a new segment of weldable aluminum? Finally do you have the ability to weld it?

Once you have decided to do this there are some simple things to do to make this much easier. Cut the swing-arm directly behind the shock linkage just before the carrier. This will allow for the use of the stock shock. THE STOCK SHOCK WILL ONLY WORK PROPERLY WITH A MAXIMUM EXTENSION OF +3. It works best to cut the swinger in a ban saw, which clamps firmly to the carrier just like our bearing housing.

Most important step GET A WELDABLE GRADE OF ALUMINUM. Finding metric dimensional al tubing is next to impossible, so i recommend finding a strip of flat stock. However wide you go will be how much longer the swinger will be. I went to a welding shop and they gave it to me for free, so give that a try. Measure where to bend the new al and cut half way through it then bend it. Next weld all four corners for strength, KEEP IT SQUARE AND STRAIGHT OR THE FINAL PRODUCT WONT BE. Once that is all done i recommend beveling all surfaces including both pieces of the swinger.

I strongly recommend having it TIG welded. I work in a fab shop so this whole process was easy. TIG welding will be the strongest, and for the abuse the swinger will go through i would hope you agree. I have three pass welds on all joints for maximum strength.

Now you are done. Next you can either grind down the welds and get it painted or just paint it. I had mine powder-coated gloss black.

I now have two years on mine and it is holding up well. Keep in mind your skid plate will no longer fit, unless you add the same lenght to it to move the bolt holes.

04 719,
Barkers+4. (Still straigh as an arrow)
Wiseco clutch basket.
Lock-up clutch
L&A oneway.
Oil mod for piston n rod.( Really works)
houser a arms
Durable axle (Stolen)
Razrs n Quadrocks all around.
EVERYTHING IS FOR SALE
Buy my parts they are cheap and like new.

Last edited by Ironlemon; 03-04-2009 at 01:42 PM.
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post #2 of 30 (permalink) Old 03-04-2009, 11:38 AM Thread Starter
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Please sticky me

04 719,
Barkers+4. (Still straigh as an arrow)
Wiseco clutch basket.
Lock-up clutch
L&A oneway.
Oil mod for piston n rod.( Really works)
houser a arms
Durable axle (Stolen)
Razrs n Quadrocks all around.
EVERYTHING IS FOR SALE
Buy my parts they are cheap and like new.
Ironlemon is offline  
post #3 of 30 (permalink) Old 03-04-2009, 11:47 AM
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How thick was the plate aluminum you used? 1/4"?
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post #4 of 30 (permalink) Old 03-04-2009, 11:51 AM Thread Starter
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Yes i believe that was correct if my memory serves me right. It has held up to TWO years of abuse so far.

04 719,
Barkers+4. (Still straigh as an arrow)
Wiseco clutch basket.
Lock-up clutch
L&A oneway.
Oil mod for piston n rod.( Really works)
houser a arms
Durable axle (Stolen)
Razrs n Quadrocks all around.
EVERYTHING IS FOR SALE
Buy my parts they are cheap and like new.
Ironlemon is offline  
post #5 of 30 (permalink) Old 03-04-2009, 12:29 PM
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Quote:
Originally Posted by Ironlemon View Post
Yes i believe that was correct if my memory serves me right. It has held up to TWO years of abuse so far.
Did you weld the inside corners of your extension 'box' or just the outside corners?
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post #6 of 30 (permalink) Old 03-04-2009, 01:39 PM Thread Starter
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Quote:
Originally Posted by ta2tony View Post
Did you weld the inside corners of your extension 'box' or just the outside corners?
Just the outside.
I knew there was going to be some details that i forgot.

04 719,
Barkers+4. (Still straigh as an arrow)
Wiseco clutch basket.
Lock-up clutch
L&A oneway.
Oil mod for piston n rod.( Really works)
houser a arms
Durable axle (Stolen)
Razrs n Quadrocks all around.
EVERYTHING IS FOR SALE
Buy my parts they are cheap and like new.
Ironlemon is offline  
post #7 of 30 (permalink) Old 03-04-2009, 05:47 PM
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Need some pictures!!!

Thanks for the info, will sticky in the suspension section.

Mike

Photobucket is trash now, use something else.
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post #8 of 30 (permalink) Old 03-04-2009, 06:39 PM Thread Starter
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I will get quality pics this friday.

04 719,
Barkers+4. (Still straigh as an arrow)
Wiseco clutch basket.
Lock-up clutch
L&A oneway.
Oil mod for piston n rod.( Really works)
houser a arms
Durable axle (Stolen)
Razrs n Quadrocks all around.
EVERYTHING IS FOR SALE
Buy my parts they are cheap and like new.
Ironlemon is offline  
post #9 of 30 (permalink) Old 04-01-2009, 06:35 PM
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Any pics yet? what grade aluminum and filler rod did you use?

**04 RAPTOR 660**
Wiseco 11:1
Megacycle X4
Barker head
+1 Ferreas
Monster Duals
39 FCRs
Dynatek FS
+4 axle
+2 up 1 a-arms
Custom 3 1/2" swinger
YFZ 450 shocks
YFZ 450 brakes
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post #10 of 30 (permalink) Old 04-01-2009, 08:37 PM
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here are some pics of my swinger that my buddy welded for me. he is a welder at a coal mine, and did it all at work. its not the prettiest looking thing........but iv beat the hell out of it for 2 years now, and have had no problems.

here are some pics i took about a year ago... there is also a big square piece of aluminum welded on the bottom for added strength.








2005 719 trail beater

Barker +4 crank/rod, 102mm 11:1 CP, Stage 3 Hotcam, KW springs, Ferrea valves, 39mm FCR's, ported by CSR
Monster dual exhaust ceramic coated black
Hinson clutch & billet basket
RPM Dominator II +4 axle, homemade +2 swinger, Elka shock & link customized by Wiigstyle Racing
ASR +2 a-arms, raptor 700 shocks
ITP SS112 wheels w/ Maxxis Razr II's
Trail Tech Vapor
Pro Aluminum nerfs
Pro Design shifter
PRM skid plates
6000K HIDs in stock headlights
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