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Old 08-26-2013, 09:41 AM   #17911
larryboy
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Location: On a set of 50,000 mile tires.
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Quote:
Originally Posted by PineyMountainRacing View Post
The other thing (and I'm not sure the picture will show it very well, but the rotor bolts clear the caliper by a "CH" - is this normal? If one of the rotor bolts started to back out it would hit. I have them torqued and lock-tighted so it's OK for now, but I've never seen such a tight fit before.


Those should be button head allens, won't stick out past the rotor. The sprocket side should also have allen bolts, but with a taper to them. Somebody cheaped out big time on the hardware for those wheels.
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Old 08-26-2013, 09:46 AM   #17912
PineyMountainRacing
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Originally Posted by larryboy View Post
Those should be button head allens, won't stick out past the rotor. The sprocket side should also have allen bolts, but with a taper to them. Somebody cheaped out big time on the hardware for those wheels.
Sprocket side are button head allens, I'll change out the rotor bolts. That's just what W9 sent me, I didn't pay for them. I think they're M6 x 18 or 20.
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Old 08-26-2013, 01:58 PM   #17913
stevh0
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Toying with a new fairing setup... what you guys think?

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Old 08-26-2013, 02:13 PM   #17914
1bigrn
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Mikuni Pumper Carb

I had a lot of people responded to my original post. However most people I believe missed the title "Problems with my Mikuni Pumper Carb" Please keep in mind when respondin to my inquirey, it is a Mikuni Pumper Carb. Thanks

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I purchased a 2nd xr650r last fall and have been riding it most of the year without problems (approx. 2000 km so far). The carb has worked well, good throttle response, easy start, idles at approximate 1800-2000.

This weekend after some nasty rock climbing trails my bike started idling high (3000-4000rpm), no matter how much I adjusted the idle screw it wouldn't turn down. I ended up ridding it like this back to camp. After a short trip down the highway it started idling back at it's original 1800-2000rpm. I assumed it was something in the jet that blew threw.

Today I took it out for another ride of approximately 20km and the bike ran great the first half but again idled high on the way back.

I figure the carb needs a good cleaning, it is likely running a bit lean. Any other thoughts from the group?
Does anyone know of a good youtube video for cleaning this carb?

1bigrn screwed with this post 08-26-2013 at 02:23 PM
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Old 08-26-2013, 03:06 PM   #17915
Dread Pendragon
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Originally Posted by stevh0 View Post
Toying with a new fairing setup... what you guys think?

Looks great!
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Old 08-26-2013, 03:16 PM   #17916
Sniper X
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Help... Any Warp9 guys around?[/QUOTE]
I stuck a washer about 3mm thick on the side that was closer and it worked perfectly.
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Old 08-26-2013, 03:18 PM   #17917
Sniper X
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Quote:
Originally Posted by stevh0 View Post
Toying with a new fairing setup... what you guys think?

I like it, how does the light look thru that weird (but kinda cool) colour lens?
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Old 08-26-2013, 05:18 PM   #17918
PineyMountainRacing
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Originally Posted by PineyMountainRacing View Post
I haven't taken the W9 wheel / hub apart. I suspect the bearing spacer (or collar) is still installed, I didn't actually look. The wheels look basically new. As for the axle spacers (adapters), they are in the right place, i.e., the rotor side spacer is on the right and the sprocket side..... I measured and marked them from the Warp9 drawings. I'll take it all back apart tonite and remeasure. Thanks!
Well I swapped the spacers around and I think I'm ok. The W9 drawings show the longer spacer on the sprocket side, but I moved it to the rotor side and vice versa. That pushed the rotor to the left and relieved the interference.

Can I run it without the chain guard that's normally below the swimgarm? I took it off since it was catching on a wheel weight. But even if I took the weight off, it would be awful close to the rim. I heard some guys run a 4.50" rim, I don't see how.
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Old 08-26-2013, 07:40 PM   #17919
bill pierce
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Quote:
Originally Posted by PineyMountainRacing View Post

Can I run it without the chain guard that's normally below the swimgarm? I took it off since it was catching on a wheel weight. But even if I took the weight off, it would be awful close to the rim. I heard some guys run a 4.50" rim, I don't see how.
I flipped the chain guide bolts so the flat head is on the inside. Some guy's modify the guide by cutting down the front part off.

I would not try running without the guide, as the chain tension is set rather loose. This is necessary because of how much swing arm travel there is.
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Old 08-26-2013, 11:00 PM   #17920
stevh0
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I like it, how does the light look thru that weird (but kinda cool) colour lens?
Originally the orange covers were designed to improve visiblity during off-road/dirt road use in dust and misty conditions. It worked so well that more and more riders started using them on-road as well.

I figured I almost never ride at night and when I do, the stock XRR headlight would be pretty sucky anyhow...
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Old 08-27-2013, 07:00 AM   #17921
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Quote:
Originally Posted by bill pierce View Post
I flipped the chain guide bolts so the flat head is on the inside. Some guy's modify the guide by cutting down the front part off.

I would not try running without the guide, as the chain tension is set rather loose. This is necessary because of how much swing arm travel there is.
I asked because it looks so much better without the guard hanging off the swinger. But I figured I needed it LOL. I looked at it this morning before work and it would be easy to cut it down and reverse the bolts, so that's what I'll do. Thanks!
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Old 08-27-2013, 08:01 AM   #17922
Sniper X
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Quote:
Originally Posted by stevh0 View Post
Originally the orange covers were designed to improve visiblity during off-road/dirt road use in dust and misty conditions. It worked so well that more and more riders started using them on-road as well.

I figured I almost never ride at night and when I do, the stock XRR headlight would be pretty sucky anyhow...
Yes, that is a daylight filter to mimic daylight. However, I haven't heard that anyone does that for some time since HID and LED lights have become all the rage. Good to see it still works. I am spoiled on WHITE light now that I have LED ADVMonster LEds which are very white compared to a stock headlight on an XR.
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Old 08-27-2013, 10:11 AM   #17923
dsilver1007
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xr650r

Having problems with my edelbrock (surprise surprise), the pumper is having problems and the throttle is starting to hang.

the question is, what should i do? try fixing the edelbrock?i know the parts are basically unobtainable . Go back with the stock carb?

My bike is pretty much stock other than a full after market exhaust and the thing ripped with the edelbrock and i could never get the stocker quite right.
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Old 08-27-2013, 12:27 PM   #17924
FlyGuy
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Quote:
Originally Posted by 1bigrn View Post
I had a lot of people responded to my original post. However most people I believe missed the title "Problems with my Mikuni Pumper Carb" Please keep in mind when respondin to my inquirey, it is a Mikuni Pumper Carb. Thanks
What happens if you turn the idle down?
then readjust the mixture
Both easy to do on the TM40, I can adjust while sitting on the seat
There is more to it than that but you should be down to 1500 rpm after that the ignition timing increases and its hard to stabilize the idle.
I typically see a large RPM difference on my vapor 1200-1500 or more

If you have a bike with a light weight piston and or lighted crank parts I recommend a different ignition or modify the one you have to alter the advance curve to a higher RPM.

2000 RPM is a bit to high for a stock motor
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Old 08-27-2013, 12:33 PM   #17925
FlyGuy
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Quote:
Originally Posted by dsilver1007 View Post
Having problems with my edelbrock (surprise surprise), the pumper is having problems and the throttle is starting to hang.

the question is, what should i do? try fixing the edelbrock?i know the parts are basically unobtainable . Go back with the stock carb?

My bike is pretty much stock other than a full after market exhaust and the thing ripped with the edelbrock and i could never get the stocker quite right.
Stock carb if your not willing to spend the money for the TM40
Or someone might chime in with some eddy parts for you (possible wishful thinking?) most people liked them when they were right.
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