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Old 11-27-2010, 10:05 AM   #1606
HeadTrauma
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Quote:
Originally Posted by mcma111
Installing a cam does NOT necessitate a jetting change. Think about it. What does a cam do? It increases the open duration of the intake valve thus allowing more time for more fuel to enter the cylinder. So by installing a cam and jetting up you are really increasing the fuel intake. In some cases a performance cam needs to be jetted down.
A cam with more duration and overlap can also reduce manifold vacuum below WOT and pull less fuel through the jets, thus needing larger ones.

That said, I didn't change my jetting when I installed the Hot Cam. It was on the rich side anyway to help with pinging and I have been thinking about going down a size on each jet(and up to stock heat range on the plug) now that it's not rattling anymore.

That's why I just say to verify the jetting after doing cams or pistons rather than specifying to go up or down. I let the recipient figure it out.

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Old 11-28-2010, 07:48 AM   #1607
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11/14/10 part 3...the last part

Here's the last video.
A jeep trail type downhill run from the top of the ridge to the canyon road below. Not that anyone is begging me to post this...but I hope you enjoy it!

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Old 11-28-2010, 09:02 AM   #1608
AlpinaE24
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I <3 my new to me XR600



I'm considering selling on of the 650r's and keeping the 600
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Old 11-29-2010, 09:28 PM   #1609
Akiva1080
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Hi everybody!

This thread is amazing but 108 pages of info? yikes!
Bought myself an 86 that looked like some $ was put into it. But unfortunately found out it had back registration which was $ prohibitive. Darn california rules.
A day later I went out and found a 91 completely stock but also plated w/ lights. It runs so nicely, my first kickstart. (I'm spoiled by my 99 elec start dr350)
Now, to plan a baja trip



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Old 11-29-2010, 10:17 PM   #1610
boingk
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Good looking 600's, guys.

And love the fleet, AlpinaE24! You should set one of the 650's up as a road bike - not just a motard, but a full-on road conversion with custom raised subframe, ducktail rear end (CBR600RR?), lowered front end (4~6"), and the obligatory 17" wheels running a 160 profile up back and a 110 up front. That'd be crazy fun and wouldn't really need a lot of work, except for the subframe I guess.

BTW, I don't suppose anyone has run a 45/40 watt globe in the headlight? Total max lighting load (Aus. spec) for my bike is 76 watts (35 headlamp, 21 brake, 21 indicator), but I figure that running a higher-rated headlamp won't hurt on the open road as you're then only running a position marker tailight (5 watt) and the headlamp, so high beam can theoretically be bumped up a bit.

Any ideas/experiences/crazy theories are welcome haha.

Cheers - boingk

PS:

Quote:
That's why I just say to verify the jetting after doing cams or pistons rather than specifying to go up or down
Too right! Not hard to check how your bikes running, and from there its only another step to get it running right.
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Old 12-01-2010, 07:40 AM   #1611
AlpinaE24
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Quote:
Originally Posted by boingk View Post
Good looking 600's, guys.

And love the fleet, AlpinaE24! You should set one of the 650's up as a road bike - not just a motard, but a full-on road conversion with custom raised subframe, ducktail rear end (CBR600RR?), lowered front end (4~6"), and the obligatory 17" wheels running a 160 profile up back and a 110 up front. That'd be crazy fun and wouldn't really need a lot of work, except for the subframe I guess.
Now thats a hell of an idea, I was looking at a picture yesterday of a setup similar to that. I got one of the 650s plated yesterday, the hard part is done
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Old 12-05-2010, 06:18 AM   #1612
elsalvadorklr
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gentlemen?

xr650r rims fit our bikes?
hole angles correct? number of spokes?
no issues with stock xr600r hubs?

Cheers,
Christian
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Old 12-05-2010, 06:46 AM   #1613
mcma111
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Rims

Quote:
Originally Posted by elsalvadorklr View Post
gentlemen?

xr650r rims fit our bikes?
hole angles correct? number of spokes?
no issues with stock xr600r hubs?

Cheers,
Christian

Christian,

Yes the XR650R and XR600 rims are interchangable. 36 hole rear and 32 hole rear.
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Old 12-05-2010, 06:52 AM   #1614
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As Steve was replying, I went out and checked my 600 and 650R and the rims themselves have the exact same size and part numbers.
In fact the front assembly may be a bolt-on with maybe just a bearing change.
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Old 12-05-2010, 08:14 AM   #1615
AlpinaE24
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What is the range on an all stock bike with stock tank riding fire roads?

Thanks
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Old 12-05-2010, 10:26 AM   #1616
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I would guess at 70-90mi until the tank is dry. It's going to depend very much on what kind of fire roads and how you ride them. I can make my bike get 25mpg or 40mpg on "fire roads" just with riding style.
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Old 12-05-2010, 12:21 PM   #1617
2manyrides
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mileage

fireroads with single track last summer had me hitting reserve at 69 miles.
I'd think you might get another 25 beyond that.

On my XR500R I once rode 40 miles on reserve with the wife and the dog both on the bike. Coasting whenever posable...
(and sweating it out I'd be pushing her down the fire road)
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Old 12-05-2010, 12:46 PM   #1618
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What year was the 500? If it was an '83-84, I wouldn't be that surprised. The twin-carb engines seem to do better on fuel.
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Old 12-05-2010, 12:47 PM   #1619
AlpinaE24
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Ok cool, should be good then. I've been doing around 75 mile loops from my house through tonto on my 650r with a 4.7 gal ims. When my brother gets out here he will ride the 600 don't want it to run out of fuel
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Old 12-05-2010, 01:53 PM   #1620
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Quote:
Originally Posted by HeadTrauma View Post
What year was the 500? If it was an '83-84, I wouldn't be that surprised. The twin-carb engines seem to do better on fuel.
Plus, the 83-84 XR5 had 3.2 Gal tanks (0.8 on reserve). I haven't measured mine that closely to know if that reserve number is correct but I've thought about changing the tank for more capacity. I'm also thinking about adapting one of those KTM side mounted tanks to increase my range. Has anyone seen such a swap on a Honda XR?
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