Jd carb kit

[Jordanlloyd95]

Has anyone installed the jd carb kit? If so would you advise it?

[rehammer81]

On what bike? I installed it on my 17' 300RR with oil injection removed. Runs pretty damn good now. Might be slightly lean on the colder days here now. Not for sure yet.

[weantright]

Yes on a 350rr and an XT. Recommend it on the 350 but not the XT. XT I used some jets from the kit (OEM stuff) but not the needles. Much smoother running when I used NECJ needle for our conditions.

[cachunko]

Not sure on your bike, but I also installed a suzuki needle - NECW - on my 2015 300RR. Runs like a champ.  I played around with the beta jetting chart (which I thought made it run like crap). I had a friend that was running the NECW so I just copied his jets and needle/position and now it runs flawless.

I've heard good things about he JD jet kits, but man, I don't need it.

[suckbangblow]

I run the JD kit on my 2017 300 RR and highly recommend it. It simplifies the jetting a bit with the chart they have and runs great. I've run from about 700-9000ft in elevation change with the kit and followed the chart with great results. The stock chart wasn't bad, but the JD kit is just smoother and cleaner. The power valve modification they include is a great adjustment as well.

[weantright]

10 minutes ago, brysonrs said:

I run the JD kit on my 2017 300 RR and highly recommend it. It simplifies the jetting a bit with the chart they have and runs great. I've run from about 700-9000ft in elevation change with the kit and followed the chart with great results. The stock chart wasn't bad, but the JD kit is just smoother and cleaner. The power valve modification they include is a great adjustment as well.

Have you tried the NECJ or NECW needles? Might want to give this a try since it's a cheap part.

OP, JD's kit is all about their needles which are custom to them. The rest of the kit are OEM parts. JD has done the R&D for you but online are cheaper recipes for the same or better results. For example jetting on our XT was $20.

[suckbangblow]

I love the JD chart. Takes the guess work out of it and runs clean.

[Jordanlloyd95]

I have a 2017 300rr race edition I will definitely be giving it a go now after reading your messages, thanks Guys ?

[shrubitup]

17 hours ago, brysonrs said:

I love the JD chart. Takes the guess work out of it and runs clean.

Did you fuel mileage improve (compared to stock) noticeably with the JD kit? Appears both pilot and mains are leaner than OEM jet chart.

[suckbangblow]

Did you fuel mileage improve (compared to stock) noticeably with the JD kit? Appears both pilot and mains are leaner than OEM jet chart.

I get about 35 mpg where I was getting 28-32 with the stock jetting. I wouldn't say it's huge. I get slightly better mileage than my buddy that rides a husaberg with a Lectron and I'm harder on the throttle.

The biggest difference I notice is how clean it runs and how little it's effected by elevation and temperature differences in comparison.

[weantright]

Beta’s are known for high float levels. Adjusting this makes a big difference in mileage. 

[suckbangblow]

Beta’s are known for high float levels. Adjusting this makes a big difference in mileage. 

I did that when I initially bought my bike. Also looping the overflow tube up works great.

[BENriding]

Got the kit for my 300. Have used them before on several bikes and always been happy.

[Marco the Pool Boy]

For the newer Beta four strokes I have found the JD jetting kit to work very good with the leaner jets and JDs needle it’s smoother off idle and better fuel economy and the same amount of power mid and top end. I will never switch back to OEM jetting and needle.

[Wrfrk]

Another happy JD customer... used them on several bikes over the years and always found it to be an improvement over stock stuff.

[EnduroPNW]

On 1/18/2018 at 10:48 AM, brysonrs said:

I run the JD kit on my 2017 300 RR and highly recommend it. It simplifies the jetting a bit with the chart they have and runs great. I've run from about 700-9000ft in elevation change with the kit and followed the chart with great results. The stock chart wasn't bad, but the JD kit is just smoother and cleaner. The power valve modification they include is a great adjustment as well.

What's your thoughts on the power valve mod. I have the same kit in my 250rr. I have installed the mod a few times but always end up taking it out after testing it out around the block. To me it adds a delay in throttle response off idle.  A dead spot if you will,  then some crazy nice power kicks in right after that dead spot. Where do you feel the increased power at low or mid?

[suckbangblow]

What's your thoughts on the power valve mod. I have the same kit in my 250rr. I have installed the mod a few times but always end up taking it out after testing it out around the block. To me it adds a delay in throttle response off idle.  A dead spot if you will,  then some crazy nice power kicks in right after that dead spot. Where do you feel the increased power at low or mid?

Mine is a 300 so it may be different, but I makes it really linear and I feel more power throughout the curve. Even off idle.

[BENriding]

On ‎5‎/‎22‎/‎2018 at 8:01 AM, EnduroPNW said:

What's your thoughts on the power valve mod. I have the same kit in my 250rr. I have installed the mod a few times but always end up taking it out after testing it out around the block. To me it adds a delay in throttle response off idle.  A dead spot if you will,  then some crazy nice power kicks in right after that dead spot. Where do you feel the increased power at low or mid?

I like the jets but took the power valve mod back out of mine as well, it was very smooth but not much mid to top acceleration. I ride at the bottom most of the time but like to have that upper hit available at times. Easy enough to put in and take out so gives me another level of adjustment. I actually just got red, yellow, green power-valve springs from the Beta dealer looks just like KTM springs. I put in yellow for now and wow good power surge in the middle, may turn it in a bit from where it is for tech trails but it is fun! 

[BENriding]

Oh mine is a 300 as well.

 

[volitan]

Do you have to leave it at 1 turn in with the spacer mod? Can you still adjust it to open sooner or later?