How To Rebuild the Top End on a Sherco 250 SE & 300 SE 2-Stroke

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Sherco 250 & 300 SE 2-Stroke Top End Rebuild Parts & Tools | www.rockymountainatvmc.com/Sa...
Whether it's because of excessive noise or just wanting to refresh your engine for the riding season, rebuilding the top end on your Sherco 250 or 300 2-stroke is a great way to get familiar with your dirt bike and prevent more catastrophic failures in the future. Knowing how to do the job correctly will save you tons of time and money compared to taking it to a shop as well. In this video, Charles shows how to rebuild the top end on a Sherco 300 SE, but this process will be similar for all Sherco 250 and 300 2-stroke dirt bikes.
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Опубликовано:

25 апр 2022

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Комментарии : 44

@SnipingWithSkillz 2 года назад

Finally quality videos about shercos, make videos on how to get that brown spark plug and crisp throttle response as they are super rich from factory.

@joelstoeltzing4979 6 месяцев назад

JD Jet Kit. Saber premix 80:1 🤙

@jcthiry7813 2 года назад

Thanks a lot for this video about Sherco. I hope to see more videos about this brand.

@nartkhorshid3049 Год назад

Thanks a lot for this video ,I hope to see more about Sherco 250/300 2 stroke.

@jetski379 2 года назад

This is a great video! Thanks RMATV!

@HardEnduroAppalachia Год назад

Thanks guys this was very helpful.

@dalepetersen6533 2 года назад

Thanks for posting this instructional video!

@rmatvmc 2 года назад

Glad it was helpful!

@darkodragic1963 Год назад

Great Video! Thanks!

@endurisk Год назад

thanks a lot!

@kennethavalemendez5297 2 года назад

More videos for sherco please. Can i adapt the aditional cdi to a 2020 model?

@rmatvmc 2 года назад

I honestly don't know about putting the additional CDI on a 2020, sorry. We'll get more content coming. Anything other than that, that you want to see on these bikes? -Charles

@ashwillmot2051 2 года назад

Great vid. I’m interested what was that trick you were using with the ring spanner to torque the base nuts?

@jeffwebb8208 7 месяцев назад

Great video

@rmatvmc 7 месяцев назад

Thanks for watching! Glad it was helpful.

@adamwaldroup 4 месяца назад

rocky mountain PLEASE start carrying sherco OEM parts. It would be a huge benefit to the SHERCO brand in the USA.

@eglibarsch1706 Год назад

Can you do a Video about the Sherco se 125?

@mateuszmigon9505 Год назад

Hey for the circlip do you put it the same way how you did it for BOTH sides?

@The03ktm125sx Год назад

Are you guys planning on showing a suspension rebuild video?

@1down5up_enduro 9 месяцев назад

Is that normal for that one stud on cylinder base to be so dark and wet?

@ahole5407 2 года назад

Where can I find a 250 or 300 motor. I NEED one for a swap.

@dannyrose5576 9 месяцев назад

What if you if you have a low compression head?

@andrewconn4821 2 года назад

I have a 22 model 300 SE. I pickled it from the dealer and when i got it home noticed it was leaking coolant from the head. Took it back and they checked the bolt torque which made no difference. The o-rings were checked for any pinches which there wasn’t. They sorted the issue out by using a form of liquid gasket in conjunction with the o-ring’s. Would this be considered acceptable practice to used sealant on the head? You didn’t in your rebuild. So I’m concerned that this “fix” may have just masked a bigger issue which I’ll encounter when i do my first rebuild. Thoughts?

@rmatvmc 2 года назад

It should seal without anything on there. Everyone does things a little different though. Did they check to make sure the head and cylinder sealing surfaces are perfectly flat? I think you are on the right track. I would call the next closest Sherco dealer and get their thoughts and see if they can help you. -Charles

@jossessanchez8884 2 месяца назад

Good to remove the control unit on a 2023 2t 250cc Sherco, would you have to disconnect the battery or would it not be necessary???

@rmatvmc 2 месяца назад

It wouldn't be necessary.

@tristanmagruder1744 Год назад

What compression numbers should I be getting from a 2022 300 se. Compression test with cold engine at wot.

@wayno23 4 месяца назад

Yes I'd like to know as well. Checked a mates 2018 300 at 80hrs was 180psi.

@TheRealRobHeagle 7 месяцев назад

You didn't indicate if a A or B piston was used as a replacement and when they should be used. Does Sherco stamp the cylinder head with the piston size?

@rmatvmc 7 месяцев назад

It's not stamped on the cylinder, you will need to measure the bore of your cylinder and get the corresponding piston kit. Generally, the A piston will be for bikes that don't have many hours/first rebuild. B piston will be 0.01mm larger for a cylinder that has some wear. C piston will be 0.01mm larger than B and for cylinders with even more wear but still in spec. Hope that helps!

@user-zv2fu4um4w 8 месяцев назад

Y a-t-il une solution pour le poids de l’embrayeur

@giacumfrei 2 года назад

HI there, short quick question: What type of lub where you using? Many thx.

@rmatvmc 2 года назад

We used the Maxima Assembly Lube in this video. You can click the first link in the description to see all the parts and tools used in this video.

@giacumfrei 2 года назад

@@rmatvmc Thank you very much for the quick reply!

@RynoDinero 5 месяцев назад

Does the PV have to be calibrated on a 2017 model?

@rmatvmc 5 месяцев назад

Yes, there is a cable adjustment procedure outlined in the service manual. Looks like there are some free manuals online, it's covered in the engine reinstallation section. -Charles

@victorflores-yz3nm 29 дней назад

La lubricación que haces que aceite usas?

@rmatvmc 29 дней назад

www.rockymountainatvmc.com/parts/maxima-assembly-lube-p

@DirtBikeNewsCanada Год назад

we didnt have to take our head off to take the cylinder off.

@wayno23 4 месяца назад

Correct but easier to remove head in the bike than on the bench for cleaning.

@mikeconnor2102 11 месяцев назад

THAT REALLY SUCKS!!! I may just have to sell the Sherco 250 Se Fe that I bought last week and have not yet picked up yet. I just do not have 6 hrs to waste driving to a dealer (3hr each way) for a simple PV recalibration. You can calibrate most auto throttle bodies without an external computer. Sherco needs to come out with a dongle to do these simple recalibrations or make their system OBD11 compatible. There are not enough dealers close by for many of us. I should have bought a yamaha...

@adamutuber 9 месяцев назад

17:05 - Is this almost compulsory to get a dealer to "calibrate the motor correctly" every time you do a top end? And what is this calibration?

@rmatvmc 9 месяцев назад

I should have specified that it's the SERVO MOTOR for the power-valve that is recommended to get calibrated. All that means is the computer will know the exact values when the valve is all the way closed and all the way open, so the engine can run it's best. Our bike ran fine before getting it calibrated but we did it anyway to make sure everything is spot-on. -Charles

@wayno23 4 месяца назад

Any idea on the compression test psi numbers for a 300 ? thanks