| Author | Message | ||||
     Itileman |
Found what I think might be the answer to the problem in that the Buell muffler is not US Forest Service Approved and an approved arrestor is required for all Forest Service roads, off roads and all BLM lands. Fines are steep, fire danger is real. Introducing the Cobra Sparky Spark Arrestor, USFS approved:  Bad news is that the smallest diameter it comes in is 2 1/4" - the Uly pipe is 2". I started by wrapping a few rounds of metal tape around the end and trimming off what hung off the elipse.  Then I cut some more slots with the Dremel to help pinch the 2 1/4" down to near 2" when I tightened up the hose clamp.  Once fitted on the pipe, I drilled a small hole and put in a screw. This is to keep the arrestor from sliding off the pipe.  Next step was to put a couple of more wraps of metal tape around the end to prevent any back flow, then tighten the clamp being sure to have the screw under it so it does not work its way out. Rear view mounted.  Since I don't want a spark arrestor while I'm riding the tarvy, the Sparky has a removable spark arrestor inside. There's a snap ring that holds it in.  Best deal I could find on one: http://www.procaliberbend.com/eshopprod_cat_6335-1 9101-30093_product_910075_keyword_Cobra+AND+Sparky .COBRA_UNIVERSAL_SPARKY_SPARK_A.htm The pricing shown in this link is more than I paid ($64.00). Might help to contact the store or Google it up under the Cobra Sparky name. | ||||
| Rotorhead |
Hows the clearance on that with the swing arm in full travel? I have a race pipe 2 outlets so I think I'm screwed on the spark arrestor when it comes out the right side due to my chain conversion. | ||||
| Growl |
Good job adapting... thanks for taking the pictures and sharing here. | ||||
| Mikef5000 |
I'm curious about the clerance as well. I was looking into doing this same thing, but though for sure I'd have to cut down the factory tip so it had a bit of an outward angle to avoid the back tire. | ||||
| Itileman |
Clearance is good. The frame goes up upon compression of the rear. The biggest problem is ground contact. I thought about trying the thing without cutting off the end of the pipe but am going this route first. Rotorhead - I've been giving some thought to the chain conversion, am curious about the details on yours. | ||||
| Skinstains |
Itileman, I'm going to be putting on that same one (a pal tipped me off to it) cool beans on the install and pictures. I will order one this weekend. I have chain drives on all of my XB's and will never go back to that stupid rubberband. I'll be at the MT1K and the WF so you can check it out there. I would show pictures but I'm just not savy enough to pull it off. (Message edited by skinstains on June 25, 2010) | ||||
| Rotorhead |
check out the Erik Buell Racing site for some of the chain drive parts, like idler http://www.EBRacing.com/shop/product49.html and front sprocket P/N http://www.EBRacing.com/shop/product46.html and the front chain rubhttp://www.EBRacing.com/shop/product61.html(a little trim required for the ULY fit and a hell of alot cheaper than a new swing arm). I get the rear sprockets and chains(120 links then remove links to fit the sprocket ratio you chose)from Vortex. So far I have a 520 set up(Erik Buell Racing size) and 530 when I know I'm headed for the dirt. I have the luxury of having 2 sets of wheels also. I'll post a ratio spread sheet after work today. I have a sheet for a 12 primary and for the 9 primary. Plug in the sprocket ratio you want to run and it calculates the final drive ratio and speeds at set RPM's. (Message edited by rotorhead on June 25, 2010) | ||||
| Itileman |
Skins - look forward to seeing you there and being able to drool on your chain drive. Rotor - thanks for the info. I don't know that I've ever seen one on a Uly - are these on the same side as the current belt drive? Not interested in spending $1800 on a swing arm set (just yet anyway). | ||||
| Rotorhead |
I'm talking about sprocket and chain install only. It run me around $200 for the setup. it could be more it all depends on the chain you want to use. | ||||
| Rotorhead |
here are the ratio sheets.
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| Barclaypierce |
Rotorhead: Do you have any pics of your chain drive system? I would love to see it. (Message edited by barclaypierce on June 26, 2010) | ||||
| Itileman |
$200 ??? Maybe I should not have bought a new belt. | ||||
| Rotorhead |
sorry about the thread jack we were talking about a spark arrestor right  no pics on this computer and I'm nowhere near my bike. RACE IDLER SPROCKET $14.95 RACE IDLER SPROCKET SPACER $4.98 XB/XBRR CHAIN RUB $20.00 VORTEX827A Rear Sprocket 520 Chain Pitch Price Each: $64.95 PBI Sprocket 520 Front 21 Tooth Axiom Item ID: 07-149-0066 Mfg Item ID: 277X-21-520 Drag Specialties Part#: 1212-0320 $33.95 138.83 pick a chain and the cost could double or stay about the same as a belt. hidden cost; lube, chain tools, wear | ||||
| Growl |
Rotorhead: Are you running your chain setup in combo with a XB9 primary? Is there a reason that one wouldn't want to keep the XB12 primary... does it limit gearing choices to do so? | ||||
| Itileman |
No problem with the hijack - it's my thread and I'm interested in the chain conversion.  | ||||
| Skinstains |
Itileman, I wish I could post pics but you'll just have to wait. Sorry. I have four different types of chain drives on my six XB's. We can discuss the pro's and con's in a couple of weeks. | ||||
| Itileman |
Looking forward to it. Ride safe. | ||||
| Mikef5000 |
Here's one I found on AdvRider custom made for KTM's. I posted up our exhaust details, we'll see what he says! http://www.advrider.com/forums/showthread.php?t=53 5814 | ||||
| Buewulf |
Nice find Itileman! Can't wait to hear more about those chain drives, too. | ||||
| Froggy |
Skin, you know you can always have me adjust the pictures so they can be uploaded.  |
