I’ve definitely experienced a pretty amazing low-end grunt on my TBI. The white map definitely helps it stay in the lower revs on the tight, nasty stuff. Best bike I’ve ridden! 🤘

Rich is referring to fuel 50:1 will not cause issues 40:1 will not cause issues 30:1 will not cause issues 20:1 will not cause issues My brother runs 15:1 in his yz250 mx

For putting around - go up a heat range B7ES or equivalent. The TBI was really the iphone of dirt bikes and now KTM has taken a step back with pre-mix on the XC's because they got so much bad press when competition bikes seized from marginal oiling (70 to 90:1) done for emissions reasons. I personally think its great but I'm a carb kind of 2 stroke rider so I want jets and oil ratios I can tweak depending on the conditions and altitude. I hate the way my 2023 Beta 390 adjusts the idle as an example. I'm thinking may be you should have bought the EXC - it is still TBI and has oil injection and is a great bike for entry level guys and gals, that want zero maintenance riding

Regarding fouled plugs - Not sure if this is relevant, but my 2021 TPI bike used an excessive amount of fuel for the first 5 hours or so - like literally after 50km I would be on reserve and nursing it back home. But after 5 hours it suddenly, miraculously doubled it's range. My theory is that it is set to run very rich from the factory during the initial run-in period and after a certain time it switches to the regular map. I have no evidence to support this, but the exact same thing happened on a friend of mine's bike - also 2021 TPI.

Ok first, "set to run rich" is referring to a fuel/air mixture, not your oil/gas mix ratio. Adding more oil to your fuel mixture actually leans the air/fuel mixture out. Many people think it's the opposite. More oil equals less gas molecules. 32:1 is a leaner air/fuel mixture than 60:1. So if you go from 60:1 to 32:1 you may have to richen, jet up, larger jets. Fouling plugs is a to rich fuel/air mixture problem, not to much oil in your gas mixture. Fouling is caused by excessive fuel not being burned. Spooge and excessive smoke is a rich air/fuel problem also, not to much oil. This is fixed by proper jetting (jetting down, leaner) or ECU mapping on a TPI or TBI bike. The 2023 300 comes with a 8 heat range plug, in years past they came with a hotter 7 heat range plug. Many people are now switching to a 7 plug The NGK BR7EIX Iridium is a much better choose than the cheaper BR7ES or 8 plugs. Much higher quality plug that has a much stronger and more consistent spark, which the plug can still produce while getting lower voltage from the motor. This is very important when you're going slow in tight terrain and the stator is putting out less juice. Letting these new bikes warm up and idle for a long time will cause plug fouling issues. They do have a richer fuel/air mixture, especially at startup. Use the proper oil and mix it at the ratio which the oil manufacture recommends. Don't mix yamalube at 60:1 instead of 32:1, and don't mix motul 710 or 800 at 32:1. Here's a very informative video on the right plugs to use in these bikes posted by Jeff Slavens last week. - kzfaq.info/get/bejne/p7iCl8SYq9S8hKs.html

Love the new bikes. New subscriber! -Ohio

For enduro/ harder trails I prefer TPI. For motocross TBI is much better.

I've seen the same issue with the fork sag during transport to the point it sits an inch or two lower than it should. Usually when transporting in the cold. After that I've confirmed pressure, thrown them on a stand and they're good to go. Definitely a unique "issue" to the 23 XC/SX forks. Seem to perform well still though.

And for now is the best moto I have ride, amizing the tx300 , the suspension is just WOW

You can change the spark plug without removing the tank you have to remover the seat and lift the tank a little bit but you don’t need to pull tank can leave the bolts in the radiator shroud too

Been watching dirt bike reviews and KZfaq recommended this video. I have a Beta Xtrainer and all I do is putput around in the woods. Same plug after 90 hours, but I can change it without removing any screws if needed. It has oil injection so I don't have to mix gas and oil. It doesn't have air forks. My biggest complaint is that the speedometer doesn't work sometimes, but that's it. Maybe look at a different bike?

Curious now that you've had a chance to ride it - how do you like the tbi engine vs the tpi? How is the new XC for a casual rider? I'm on the fence about buying a 23 on sale or going with a GG tpi.

I am about ready to pull the trigger and get this bike. Im still debating between this bike and the 300 XC-W. There are definitely a few things that I like about the XC but like you, the riding around here is more rocky and lots of roots. Im hoping that the dealership I buy this bike from does a better job prepping it than yours did. I would have been pissed if that happened to me.

With larger bore bikes you need a special 2 stroke oil that actually burns otherwise you’ll foul plugs non stop. I was using H1R on my 250 and after fouling so many plugs I was told to try motorex. Never fouled a plug after the switch. It apparently has a lower burning temp so you don’t get the buildup.

If you are fouling plugs you are on the wrong bike go faster mine has 67 hours and no fouled plug yet. You should also set up your sag and air forks before you ride. I use a RAVEN Closed Cartridge Fork conversion and it made this bike incredible. I would recommend going spring conversion if you are serious about riding at all.

50:1 or 60:1 - that is not was caused the plug to foul. Probably just not staying on the pipe all the time. It's not really an issue unless you can't carry and extra plug with you. Back in the day, we ALWAYS carried extra plugs - and we expected to foul it.

Do you know what the difference is in maintenance between 300 XC and 350 XCF? Thanks

A little bit grunty?…compared to my TPI the TBI is a top fueler…..

Try a br7es plug and you will be happy . In slow technical riding it’s much better.

The fuel pump needs to be installed at the bottom of the tank not where they have it positioned. The stator should have enough power to run lights and radiator fan without running the battery down over time and it does. KTM needs to install a better piston. Some owners are having big problems with piston blowing up in pieces The dealer have way over priced these bike because they are greedy. He said 10,000 bike , what ! try 12,700 from some dealers.

Use a hotter plug by 1 heat range.. such as BR7EIX

So if you were doing a lot of slower technical riding with just the occasional rip would you choose a TPI? That's mostly my riding so I am thinking a TPI might be more suited to me. The TBI's look like fun when you're ripping along, but I also don't have any desire to hurt myself from crashing at speed. Ha!

The new TBI XC doesn't have the grunt the TPI has with a good TPI tune from TSP. The TBI XC is more of a fast paced runner, where the TPI tuned bike is more of a tractor that can certainly run out extremely good. Most guys that buy TBI XC's can't ride them like they are meant to be ridden and they are not good enough riders for the bike. That's when you see lots of these same guys getting hurt. The foul plug issue has been solved with a dealer update.

I got the 5 blink FI light too, but I watched enough videos to know what it was. It rode like crap with that light on. Super rich to the point it wouldn’t rev out. I’d like to hear your thoughts after 10ish hours on the firmware update

I just bought my tx300 2023, and 0 problems, no lights, and the thing with the plug u are going to slow, remember this motos are 2t, and I do 1:50 no problem I got 4 hrs

I add oil to my gas on oil injection bikes Beta and husky and tm racing No issues Euro 5 emissions requires less oil , more oil is better

Buyin plugs w/ 2-strokes is par for the course. Unfortunately.

My 2022 is trail ridden and seized at 7.2 & 7.4 hours. The second time KTM put a new crate motor into it with a new oil pump and it ran better than it ever had. After putting 4 hours on the new motor I converted 2022 XC TPI to TBI, premix, Coober ECU, S3 head, BR7EIX sparkplug & adjusted the air bypass screw inward (which improved throttle response & richened it also). It then ran like a 100% better bike. Power at all rpms. Can putt along at idle speed for minutes then open the throttle and it responds. KTM owners (free) & shop manuals are available on line at KTM. I did the conversion to TBI,....before KTM came out with the 2023. Forks are never called shocks

One of the most expensive companies besides beta and theres always problems with these . Go team blue

Post the EBay info please

Its much cheaper to build a tbi vs tpi , so more profit for the manufacturer

I don’t think any manufacturer supplies an actual manual these days, Beta and Sherco certainly don’t 🤷🏼‍♂️. It’s pretty shit, but par for the course unfortunately.

wrong oil and way too rich of a mixture is usually the problems most people are causing with these bikes

I love mine, but man does it eats spark plugs!

I've never taken a brand new bike apart. Just ride it. Maintain as needed.

Wtf, take the tank off to change a spark plug? I have a 2017 300 xc and its not necessary to remove the tank to get to the spark plug. Sure you are doing it right?

Not run into issues, on a ktm 😂

That bike is 12400 at the dealer now if you got it for 10 you stole it

Not sold… you bought the f-ng bike

Best dam bike I ever owned period