Hidden Gems in the 2023 GasGas TXT Racing 250

With some time on the bike, I found a few pleasant surprises that don't seem to be documented. Plus measured sag and progress.

[@martin2664]

I have a 23 300 TXT and I recently switched from 93 non-ethanol fuel to 50/50 mix of 110 race gas and 89 non-ethanol to get overall gas mix to just under 100 octane. Am using with premix at 100:1. Huge improvement in the way the engine runs, much crisper, doesn’t stall as easily and kick starts more easily! 2 other club members here in NC with same bike have done the same and are equally pleased. 👍

[@TubbyTrialTeam]

Nice vid. I’d change the oil only to get any potential debris out as it’s a new engine. For the sake of the cost of a bit of oil definitely worth it.

[@RC-Engineering]

Thanks! I’ll change oil before next outing 🙂

[@ledgledg668]

Definitely change the oil!! if you just undo the top plug for the oil and look at the magnet you will see why you want to change it. I did mine after one ride (though you don't seem to ride much id get more hours on mine after one ride then yours has.). id change it quite often while the bike is new as you seem to get plenty of bits in the oil to start with. Im in the uk and my bike has only ever run on 99 octane ( though I think you rate it different then we do)

[@juanxiberta]

Hi! Dont worry about doing an oil change yet. U shold do it at around 15h of hard use. Ive been riding trials for 16 years now, if u have any doubts just tell me!!

[@RC-Engineering]

Thanks! I changed it at 7 hours. While not very dirty, the sump magnet was full of small filings. As a bonus hidden gem on the bike, the fill plug is identical to the sump plug and also has a magnet! That magnet had some much larger metal splinters on it. I was pleased to have both magnets clean even if the oil wasn’t desperately in need of change.

[@EXTREMEly-FUNctional]

Hello. Have you found any charts for the carb jets and or reccomend spring weights?

[@RC-Engineering]

The carb was jetted per the manual (page 118-119). Also the manual suggested weights seem spot on (page 38).

[@EXTREMElyFUNctional]

@@RC-Engineering When I bought the bike a year ago...I looked all over for online manuals....looks like gasgas finally got it together. 👍

[@BSpecTV]

Just a heads up, I bought a brand new 2021 TXT 300 a few weeks ago, old stock so picked it up at a great price. Rode it once did, just over an hour, stored it in my garage with the handle bars hard right. Next day I pulled it out and started it up. Little did I know the throttle cable dislodged from the throttle on the handle bars and was resting on the edge, covered by the rubber boot so not visible to me. This effectively set the stop at about 10% throttle on. The engine started and just stared to rev its tits off. Not knowing what was happing , I twisted the throttle closed but didnt help, so pulled the kill switch on the handle bars and the engine didnt stop to my shock. About 10 seconds later the engine seized due to the piston heating up way faster than the cylinder. My dealer has now fixed it under warranty. Takeaway points from my experience The throttle cable is really short The throttle cable just floats at the connection with the throttle tube , I will be lock wiring that in place from now on. Do not rely on the kill switch to work on a 2 stroke, It must have been self igniting. Have a strategy in place so if this runaway engine happens to you , you know what to do in the 10 seconds you have before self destruct. Nigel New Zealand

[@RC-Engineering]

Ouch! That’s a harsh start with a new bike. 😢 Before I rode the bike, I went over it carefully. Removing the airbox, wheels, tank and more, I carefully went over electrics and cable routing. Everything was fine, but I’d heard about the throttle potentially being an issue at the throttle body. After carefully going over it, I didn’t find any issues. Also, since I was very young, I always snap the throttle before starting. It has to return effortlessly or I won’t attempt to start. Not sure why I developed this habit, but I’ve found a couple times through the years where I needed to investigate before starting.

[@BSpecTV]

Does the 2023 model have the gearbox click/crunch when shifting from 4th gear to 5th?

[@RC-Engineering]

I haven’t noticed! Mind you, I’ve only been practicing low speed and maybe had it in 5th 2-3 times. What I have noticed is that shifting is a deliberate effort compared to my other bikes, but I put that down more to the shifting geometry with lever shape an of course how far it is from the footpeg.

[@ledgledg668]

ive got a 24 model and yes it does still crunch if you don't let right off between 4th and 5th.

[@RC-Engineering]

I'm guessing it has to do with switching out of 4th with it's multiple-engaged gears to a significant jump in ratio to 5th. One of the disadvantages of the 4+2 configuration?

[@ledgledg668]

@@RC-Engineering I don’t really see it as a massive disadvantage. It’s a trials bike. 1 to 4 are the only gears you would use in a section. (It’s one massive bog if you’ve got up to 4th 🤣😂). Then 5th and 6th are only used on long runs between sections. And once you get the knack of rolling right off the throttle going from 4th to 5th it doesn’t always crunch either. Just most of the time. 🤣😂