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Old 03-18-2013, 09:56 PM   #16501
RideFreak
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Location: County Lockup, NM
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Quote:
Originally Posted by crypto666 View Post
Oh, I had forgot you already did replace everything else already.
Actually, I went home last week and checked my pump since it is one of the few original parts in my motor, and it still has lots of life in it.

I know I saw a test procedure somewhere, it used the ports where the external oil lines tie in to the case. Seems like it required two gauges. If it isn't in the xrr manual, it may be i honda's general service manual. I can look tonight when I go home.

I am not sure if the cover (pump housing) actaully has any wear points on it, and I think all the wear would be between the rotors and the part they interface with. If not, its a cheap fix/insurance. Otherwise the cover adds $170 to the job.
As one side of the pump housing it's a wear point, depending on how much crap went through the pump it may be grooved. At $170 I'd def explore some cheaper alternatives if that the case, a good machinist might be able to surface it (I cant remember if it has an oring groove in it)
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Old 03-18-2013, 11:24 PM   #16502
KonaTheHusky
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Quote:
Originally Posted by PineyMountainRacing View Post
I believe a 120/80-18 is an 18" tire (fits an 18" rim) that is 120 mm (about 4.7 inches) wide. The 80 is the aspect ratio which means the height (how tall it is) = 80% of 120 mm = 96 mm (about 3.8 inches).

The 110 / 100 is 110 mm wide (about 4.3 inches) and 100 % of 110 tall = 110 mm tall ( about 4.3 inches ). So its 4.3 inches wide by 4.3 inches tall. So a xxx / 100 tire will be the same width as height. The 110/100 will actually be taller than the 120/80. 100% of 110 mm is bigger than 80% of 120 mm.

Some tires are just classified by 1 number, and that implies the aspect ratio is 100%. Like a 4.50 X 18; it's an 18 inch tire that is 4.5 inches wide and 4.5 inches tall.

I'm currently running a 140/80-18 on the rear, but its a Pirelli Scorpion, MT90 - more or a dual sport tire. I think the last knobby I ran was a 120/80. Pretty sure a 140/80 knobby would not have enough clearance, it would be too tight with the knobs. It's all kinda confusing until you start mounting lots of tires and see them side by side. Plus you gotta convert the metric to inches, unless you're on the other side of the pond.
I know I'm digging up an old piece of this thread, but how'd you like the Pirelli MT90s? Howd the 140/80 sizing in the back work out? I've read some really solid reviews, accompanied by some odd, very poor reviews on the MT90s. I'm gunna be taking my BRP on a long trip (1-3 months) that will start out as mostly hwy (75hwy/25offroad) then will likely transition to mostly offroad. I have some Maxxis Deserts on it now that I might just strap to the back for the first part of the trip until I need them. Looking for a recommendation on a good DS tire that handles well on wet pavement (rains are coming).

Thanks.
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Old 03-18-2013, 11:43 PM   #16503
mdlak
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Chain recommendations

Starting to think about sprockets/chain for my XRR. Think I have it down to Sunstar steel 15/48 sprockets but not sure on the chain. Either DID or RK 520 o-ring seem to be the most popular. Any suggestions on exact chain and where to buy?
Thanks!
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Old 03-19-2013, 04:51 AM   #16504
galland1
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Originally Posted by mdlak View Post
Starting to think about sprockets/chain for my XRR. Think I have it down to Sunstar steel 15/48 sprockets but not sure on the chain. Either DID or RK 520 o-ring seem to be the most popular. Any suggestions on exact chain and where to buy?
Thanks!
I use the RK XSO 110L OEMCYCLE $68 cheap but good.
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Old 03-19-2013, 09:48 AM   #16505
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I was just on a quick dual sport ride between Port Orchard and Belfair, and found a huge network of trails off the main road. The one thing that kept crossing my mind was that I'm probably going to run right into a meth lab
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Old 03-19-2013, 10:53 AM   #16506
crypto666
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Quote:
Originally Posted by mdlak View Post
Starting to think about sprockets/chain for my XRR. Think I have it down to Sunstar steel 15/48 sprockets but not sure on the chain. Either DID or RK 520 o-ring seem to be the most popular. Any suggestions on exact chain and where to buy?
Thanks!

After breaking a chain and rebuilding the engine I use:
DID 520ZVM2 X-Ring 520x110

Do not use Primary Drive anything.
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Old 03-19-2013, 11:56 AM   #16507
RideFreak
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Quote:
Originally Posted by mdlak View Post
Starting to think about sprockets/chain for my XRR. Think I have it down to Sunstar steel 15/48 sprockets but not sure on the chain. Either DID or RK 520 o-ring seem to be the most popular. Any suggestions on exact chain and where to buy?
Thanks!
I'd go with IronMan sprockets if you can swing it, about $35 more than a decent rear sprocket, probably the last one you'll buy for the XR, lighter than most of the alum sprockets and it outlasts almost any chain.
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"Life's journey is not to arrive at the grave safely in a well preserved body, but to rather skid in sideways, totally worn out, shouting ... Holy Shit, what a ride!"
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Old 03-19-2013, 12:02 PM   #16508
larryboy
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Location: On a set of 50,000 mile tires.
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Quote:
Originally Posted by RideFreak View Post
I'd go with IronMan sprockets if you can swing it, about $35 more than a decent rear sprocket, probably the last one you'll buy for the XR, lighter than most of the alum sprockets and it outlasts almost any chain.

Yup, they have tested everything under the sun and say that the Regina Z-ring chain is the strongest and longest lasting 520 chain. I've used their sprockets and that chain on a couple bikes, they leave the fleet with them on the bike because they don't wear out.
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Old 03-19-2013, 12:40 PM   #16509
crypto666
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Originally Posted by galland1 View Post
I use the RK XSO 110L OEMCYCLE $68 cheap but good.

Here is what cheap, saving $20 got me
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Old 03-19-2013, 12:56 PM   #16510
mdlak
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[QUOTE=crypto666;20984883]Here is what cheap, saving $20 got me


Thanks for the input everyone. I'm definitely willing to pay for good quality.
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Old 03-19-2013, 01:01 PM   #16511
achile
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Originally Posted by crypto666 View Post
Here is what cheap, saving $20 got me
Shit, dude! That's a wreck! OEM case saver and all, it messed everything up! I feel your pain!
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Old 03-19-2013, 01:22 PM   #16512
crypto666
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Originally Posted by achile View Post
Shit, dude! That's a wreck! OEM case saver and all, it messed everything up! I feel your pain!

Oh well, thats what it took for me to through a few thousand more dollars at it to take it from a basic xrr to the fire breathing dragon it is today.

THe one thing that really pissed me off is after I posted a critical review of Primary Drive on Rockymountainmc.com, they contacted me to see if the chain was really to blame. After I proved to them that it was the chain's failure, they refunded me the cost of the chain, and removed my review of their product. Jerks, hiding the truth.

DO not buy Primary Drive anything.
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Old 03-19-2013, 01:24 PM   #16513
galland1
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RK Xso is quality made in Japan chain. Not comparable to primary drive. IMO:-)
Sent from my Galaxy Nexus using Tapatalk 2
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Old 03-19-2013, 01:28 PM   #16514
cognugget
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Old 03-19-2013, 01:53 PM   #16515
crypto666
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Quote:
Originally Posted by galland1 View Post
RK Xso is quality made in Japan chain. Not comparable to primary drive. IMO:-)
Sent from my Galaxy Nexus using Tapatalk 2

Oh, I know. RK (also excellent chains) is not to be compared with PD. I just wanted to emphasize that putting a chain on the xrr is not the same as say a 250 where anything will work without fear. It is not a good way to save money. In fact, if the xrr used a slightly longer chain, the wife's CRF would be getting the hand me downs.

I would shoot for something around or over the 7000# mark tensile strength.
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