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Search: Posts Made By: HeadTrauma
Forum: Thumpers 05-22-2014, 11:06 AM
Replies: 190
Views: 22,863
Posted By HeadTrauma
Have you researched it at all? All you...

Have you researched it at all?

All you really have to do is start looking at system documentation and schematics to get an idea of the parts required. There again, it's going to be model-dependent...
Forum: Thumpers 04-28-2014, 07:37 AM
Replies: 121
Views: 11,089
Posted By HeadTrauma
I'm surprised you didn't get blown off of the...

I'm surprised you didn't get blown off of the bike. How do like all our trees in the A.V. that lean to the east?

Trick question, there are no trees. :rofl
Forum: Thumpers 02-08-2014, 08:45 AM
Replies: 121
Views: 11,089
Posted By HeadTrauma
There's a three-letter solution to that: EFI....

There's a three-letter solution to that: EFI. :evil



I wonder if the huge steel tank from an XL600LM/Pharaoh/Dakar is any different on the underside. You already have the swingarm. :lol3
Forum: Thumpers 01-31-2014, 05:16 PM
Replies: 190
Views: 22,863
Posted By HeadTrauma
Making a complete EFI kit for a specific model...

Making a complete EFI kit for a specific model isn't as difficult as producing them on a large scale and making any money at it IMO.

Unfortunately the only one making any motions in the direction...
Forum: Thumpers 01-26-2014, 12:59 PM
Replies: 121
Views: 11,089
Posted By HeadTrauma
A progressive linkage doesn't have to be that...

A progressive linkage doesn't have to be that complicated. Perhaps something similar to a four-barrel carb's secondary lingage:
...
Forum: The Garage 01-20-2014, 05:11 PM
Replies: 30
Views: 7,498
Posted By HeadTrauma
No, the little reed in the early heads is only...

No, the little reed in the early heads is only intended to divert some intake charge from the primary carb side into the secondary one when the secondary isn't open. General consensus is that it's to...
Forum: Thumpers 01-14-2014, 05:47 PM
Replies: 121
Views: 11,089
Posted By HeadTrauma
Wow. Just WOW. Working with one of the legendary...

Wow. Just WOW. Working with one of the legendary names in Hot Rodding and racing...I'd (just about) kill for an opportunity like that.....or an opportunity to drop everything and ride around south...
Forum: West California, the desert southwest and whatever is left 06-07-2013, 07:59 PM
Replies: 7,390
Views: 542,295
Posted By HeadTrauma
Bothers you, does it? I said I would share when...

Bothers you, does it? I said I would share when appropriate and petty antagonizing won't get me to do it before.
Forum: West California, the desert southwest and whatever is left 06-07-2013, 12:50 PM
Replies: 7,390
Views: 542,295
Posted By HeadTrauma
I went to a very short notice meeting in Lake...

I went to a very short notice meeting in Lake Hughes last night and the USFS mouthpiece said that the current ANF closure area and duration is preliminary. They will (supposedly) be reevaluated later...
Forum: West California, the desert southwest and whatever is left 06-02-2013, 10:36 AM
Replies: 7,390
Views: 542,295
Posted By HeadTrauma
Both. First three are Lake Hughes, second two are...

Both. First three are Lake Hughes, second two are Lake Elizabeth.
Forum: West California, the desert southwest and whatever is left 06-02-2013, 02:36 AM
Replies: 7,390
Views: 542,295
Posted By HeadTrauma
It gets worse. These photos are about three hours...

It gets worse. These photos are about three hours old.

http://img.photobucket.com/albums/v521/65ShelbyClone/Photography/fire1_zps739c2f81.jpg...
Forum: West California, the desert southwest and whatever is left 05-18-2013, 02:54 PM
Replies: 7,390
Views: 542,295
Posted By HeadTrauma
What sort of bike and experience do you have? I...

What sort of bike and experience do you have? I lurk on this thread, but don't post (or ride) much because it's a PITA to lug a green sticker bike around CA.

Also...howdy neighbor. :wave There...
Forum: Thumpers 05-15-2013, 10:34 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
I'm wondering how those snail adjusters got so...

I'm wondering how those snail adjusters got so worn out. :huh
Forum: Thumpers 05-14-2013, 10:21 AM
Replies: 13,162
Views: 1,271,526
Posted By HeadTrauma
I would skin the outer surface of the seal where...

I would skin the outer surface of the seal where it presses into the case with a little sealant, personally. I would also put tape over the CS splines before installation to make sure the lip doesn't...
Forum: Thumpers 04-19-2013, 09:23 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
That's funny. For me, the ride would be work and...

That's funny. For me, the ride would be work and compiling the video easy. :evil

I ride terrain like that anyway, but not usually for 100mi at a stretch...
Forum: Thumpers 04-12-2013, 08:51 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Who would have thought so many XR owners also...

Who would have thought so many XR owners also play with Fords. :evil
Forum: Thumpers 04-09-2013, 02:49 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
It looks like you filled the gap by playing with...

It looks like you filled the gap by playing with stroker SBFs and 5.0 Explorers. :evil
Forum: Thumpers 04-09-2013, 02:28 PM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
As long as they're the right width and bore size,...

As long as they're the right width and bore size, they should be fine. Verify the groove side clearance and end gap as per normal engine building procedures.
Forum: Thumpers 03-30-2013, 11:49 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
http://img.photobucket.com/albums/v521/65ShelbyClo...

http://img.photobucket.com/albums/v521/65ShelbyClone/XR600_snow1.jpg

It's an old photo, but it hasn't snowed like that since. I only stopped riding because it took a lot of throttle just to...
Forum: Thumpers 03-30-2013, 10:39 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Oh snap! (you said it first :rofl) I forgot that...

Oh snap! (you said it first :rofl) I forgot that I have pretty much anytime access to a mill and a big bport XL600 longblock languishing under the workbench. A 106mm bore with a 75mm stroke would...
Forum: Thumpers 03-30-2013, 09:46 PM
Replies: 13,162
Views: 1,271,526
Posted By HeadTrauma
From Ye Olde XL600 Thread circa 2009: ...

From Ye Olde XL600 Thread circa 2009:

http://www.advrider.com/forums/showpost.php?p=11482541&postcount=1440
Forum: Thumpers 03-30-2013, 09:33 PM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
Valve rotation is not an uncommon occurrence, but...

Valve rotation is not an uncommon occurrence, but one revolution every 20 seconds is extreme for idle speed.
Forum: Thumpers 03-29-2013, 11:27 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
Yes. Even the small port engines do. Two separate...

Yes. Even the small port engines do. Two separate ports and valves tend to flow better than one big port splitting into two valves. Something else that helps is the dual carbs having a straight shot...
Forum: Thumpers 03-27-2013, 08:54 PM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
That is exactly how manufacturers rate their...

That is exactly how manufacturers rate their engines; at the crank. IMO, a big port XL600 should be capable of over 40rwhp in uncorked stock trim (they were rated at 43bhp), but probably not an '88+...
Forum: Thumpers 03-27-2013, 08:42 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
I don't think it matters really. Certainly won't...

I don't think it matters really. Certainly won't hurt anything if you can get it on the cam lobes, though.
Forum: Thumpers 03-07-2013, 11:20 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
I don't recall the stock airbox hole's...

I don't recall the stock airbox hole's dimensions, but I do seem to recall that it already has several times more flow area than the carburetor throat.
Forum: Thumpers 03-03-2013, 12:20 AM
Replies: 13,162
Views: 1,271,526
Posted By HeadTrauma
In what way?

In what way?
Forum: Thumpers 03-03-2013, 12:14 AM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Maybe if it was yours, but I have washed the...

Maybe if it was yours, but I have washed the liner (and my hair) a few times in the last 15 years. :rofl
Forum: Thumpers 03-01-2013, 07:59 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
A new helmet is something I keep forgetting to...

A new helmet is something I keep forgetting to buy. I've had mine since '98.

What? it matches my jersey. :rofl
Forum: Thumpers 02-25-2013, 12:31 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
If the gear dogs themselves were slipping out of...

If the gear dogs themselves were slipping out of engagement and then back, it would make a horrible noise. It sounds to me like your clutch is slipping and/or the clutch basket is becoming grooved to...
Forum: Thumpers 02-25-2013, 12:23 AM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Too bad the stock CDI can't handle a trip through...

Too bad the stock CDI can't handle a trip through a reflow oven... like cooking a RRODed Xbox board to get the GPU working again. :rofl



Some ICs are in sockets too...including the processors....
Forum: Thumpers 02-23-2013, 08:31 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Open loop can actually work pretty well...

Open loop can actually work pretty well (certainly no worse than a carburetor) and a lot of first generation systems ignore the O2 output at high load anyway. Now that many new cars come with...
Forum: Thumpers 02-23-2013, 12:49 PM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
They're called thumpers not for the exhaust note,...

They're called thumpers not for the exhaust note, but for the sound they make upon landing. :rofl



Since a lot of gasoline here has it as an oxygenate, it's worth mentioning that alcohol is...
Forum: Thumpers 02-23-2013, 12:39 PM
Replies: 13,162
Views: 1,271,526
Posted By HeadTrauma
And higher compression will make a lean mixture...

And higher compression will make a lean mixture more likely to ping.
Forum: Thumpers 02-22-2013, 08:23 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
The graph you posted is the output curve for a...

The graph you posted is the output curve for a narrowband(NB) sensor. NB O2 sensors are only remotely accurate right around stoich and the output curve isn't at all linear, as shown. Max power is...
Forum: Thumpers 02-22-2013, 12:08 PM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
Hate to be a downer, but I didn't really plan on...

Hate to be a downer, but I didn't really plan on injecting my 600. :huh Maybe if I had a 650L with all the DC electrical in place...



+1. My 600 has the same frame and swingarm dimensions as a...
Forum: Thumpers 02-22-2013, 10:32 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
Pull the distributor cap and turn the crankshaft...

Pull the distributor cap and turn the crankshaft clockwise(or whichever way it turns when the engine is running...most RWD engines turn CW when looking at the front). You'll see which way the rotor...
Forum: Thumpers 02-22-2013, 09:33 AM
Replies: 10,572
Views: 1,432,366
Posted By HeadTrauma
DO NOT WASH A FOAM FILTER WITH GASOLINE! ...

DO NOT WASH A FOAM FILTER WITH GASOLINE!

Well, you can....if you want it to fall apart. I think all of them say not to in the instructions. When in doubt, RTFM. :deal



Are you sure it's...
Forum: Thumpers 02-21-2013, 11:24 AM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
I'll post it here in case anyone else is...

I'll post it here in case anyone else is interested in an EFI conversion. :evil

Ecotrons (http://www.ecotrons.com/) is an outfit selling universal EFI conversions for bikes and small engines. It's...
Forum: Thumpers 02-21-2013, 02:01 AM
Replies: 75,983
Views: 8,044,862
Posted By HeadTrauma
The building part is mostly done, thankfully. I'm...

The building part is mostly done, thankfully. I'm tired of slaving away over a hot soldering iron.



It's funny you say that because none of the hardware is really that old, at least not as old...
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