Dave's Carb Mods

Existing technical info specific to Honda.
Respond to topics with questions or comments.
Post new topics in Honda Community.
Nornevrder
Posts: 3
Joined: Jan 28, 2018
Location: Spanish Springs
Rides: 2017 XR650L
Vehicles: 2012 Ram 2500

Re: Dave's Carb Mods

Post by Nornevrder » Mon Jan 29, 2018 11:24 am

My bike is a commuter but will be in the desert and Sierras this summer. I raced MX and a pretty high level and finally hung up my boots 2 years ago. Riding the The Pig feels like walking to me as I am very at home. I will be setting mine up like a dirt bike too. I’m thinking about entering a desert race for shits and giggles.

Plud
Posts: 17
Joined: Oct 25, 2016
Location: Reno Nevada
Rides: XR650L
Vehicles: Jeep Wrangler, RAM 1500

Re: Dave's Carb Mods

Post by Plud » Mon Jan 29, 2018 11:40 am

When the going gets rough, I tend to ride like the pig is a trials bike..slow/methodical obstacle negotiation... and I'm not reluctant to duck walk if things get really nasty.

There's a small group out in Fallon (if I recall), they're on ADVRider fairly often.. they seem to focus on hauling across the desert.. 200-300 mile day rides. You might want to check out ADVRider and keep an eye out on 'the west rides' thread.

Nornevrder
Posts: 3
Joined: Jan 28, 2018
Location: Spanish Springs
Rides: 2017 XR650L
Vehicles: 2012 Ram 2500

Re: Dave's Carb Mods

Post by Nornevrder » Mon Jan 29, 2018 12:08 pm

Thanks Plud will do. Those FB pages seem to be inactive. I’ll keep my eyes open

Reanimator
Posts: 4
Joined: Apr 02, 2018
Location: Antarctica
Rides: 2016 XR650L
Vehicles: Nothing but bikes!

Re: Dave's Carb Mods

Post by Reanimator » Wed Apr 04, 2018 5:09 pm

I just completed all the modifications on my 2016 Xr650L and "hawtdamn" it has really come ALIVE!!! The mods I did were a 52-160 pilot and jet combo along with Dave's Carb Mods, Desmogged (screw ya California), Desnorkeled (times two), FMF Powercore Exhaust, 5.8 Gal. Acerbis Tank, XrsOnly Temp Gauge, Rear sprocket 44t , XrsOnly 10 to 8mm rear wheel bolt mod, and UNI Filter. Don't be afraid of tinkering with the bike, sprocketing, or the carb. It's a hit and miss situation and was definitely worth the reading on this forum that gave me the knowledge and encouragement to bring my bike to life.

The stock XRs are setup poorly to blow up. Mines did last year and I was lucky they warrantied the damage. 80 pinned is kinda bad especially when full stock and ultra lean from the factory. I learned to read the spark plugs too. That really tells ya how your girl is doing.

JoeRC51
Posts: 65
Joined: Jun 10, 2016

Re: Dave's Carb Mods

Post by JoeRC51 » Thu Apr 05, 2018 3:34 pm

What do you mean by ''desnorkled times two'' ?

Reanimator
Posts: 4
Joined: Apr 02, 2018
Location: Antarctica
Rides: 2016 XR650L
Vehicles: Nothing but bikes!

Re: Dave's Carb Mods

Post by Reanimator » Mon Apr 09, 2018 9:21 pm

JoeRC51 wrote:What do you mean by ''desnorkled times two'' ?
It was in conjunction of the "screw California" once and again (twice) for desnorkeling the bike. I can see how that could be confusing.

Reanimator
Posts: 4
Joined: Apr 02, 2018
Location: Antarctica
Rides: 2016 XR650L
Vehicles: Nothing but bikes!

Re: Dave's Carb Mods

Post by Reanimator » Mon Apr 09, 2018 10:00 pm

Now it is starting to look, normal. Left is after all of Dave's mods and a 50 mile ride. So the plug is fresh still. The one on the right.. well what can I say. It's a result of a stock carb and no mods. Looks like it was running ultra lean.. should I still be skeptical about the left?
Attachments
20180409_212722.jpg
Plug with mods, plug without..

treydouglass
Posts: 11
Joined: May 03, 2017
Location: Denver, CO
Rides: Motorcycles
Vehicles: Honda XR650L

Re: Dave's Carb Mods

Post by treydouglass » Wed Apr 18, 2018 10:37 am

Your spark plug looks good Reanimator.

I'm in the middle of the carb mods, by carb is currently disassembled with new jets ready to be installed. My question - and understand that I have no idea what I'm doing other than what I read about the carb mods on this forum - is, what happens if I don't file down the mixture screw? I'm not sure I understand that purpose of filing it down. Also, if I really have to file it down - I don't have the proper tools. Any suggestions?

JoeRC51
Posts: 65
Joined: Jun 10, 2016

Re: Dave's Carb Mods

Post by JoeRC51 » Wed Apr 18, 2018 2:12 pm

The fuel screw has a tab on it that hits a tab on the float bowl. This is to limit how far you can open the fuel screw for emissions purposes. Leave the tab on the screw head and file the tab off of the float bowl , the tab makes it easier to turn the screw and it also makes it easier to tell where you're turning the to.

treydouglass
Posts: 11
Joined: May 03, 2017
Location: Denver, CO
Rides: Motorcycles
Vehicles: Honda XR650L

Re: Dave's Carb Mods

Post by treydouglass » Wed Apr 18, 2018 3:00 pm

Thanks Joe - but once you unscrew and remove the float bowl, it isn't in the way any more, and you can adjust the screw (to 2 1/4 turns out). And then just put the float bowl back on. Am I missing something? I guess I still don't understand why it's necessary to file down the tab.

Post Reply

SPONSOR