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Sherco Tech / Re: 2019 SER 300 Factory jetting
« Last post by motif on Today at 11:51:43 AM »
refreshing thread as my factory 2020 300 se is very rich at 172/42 jets for current temperature around here at 10C,
riding slow technical terrain, spooge everywhere...  Will try suggested here 165/38 or 170/30  but the question is
when summer comes with 30C temp will I have to rejet again?
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Sherco Tech / Re: access to main jet on 2020 model?
« Last post by motif on Today at 08:43:17 AM »
2stroke or 4 stroke?
my 2016 2 stroke i tilt the carb top towards me to take the top off and then turn it the otner way to get acces to the bottom of the bowl for the MJ.


2 stroke,  I know on 2020 model carb is closer to the engine then previous year models so not sure if I can twist that way.
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Sherco Tech / Re: access to main jet on 2020 model?
« Last post by hannesd on Today at 08:02:17 AM »
2stroke or 4 stroke?
my 2016 2 stroke i tilt the carb top towards me to take the top off and then turn it the otner way to get acces to the bottom of the bowl for the MJ.
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Sherco Tech / access to main jet on 2020 model?
« Last post by motif on Today at 03:08:50 AM »
Hi,
can I twist carb to access the bawl and main/pilot jet on 2020 model?
Looks like carb is pretty close to engine...
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Sherco Tech / Re: What gearbox oil
« Last post by Caffeineo on February 15, 2020, 04:01:55 PM »
I use Bel Ray Gear Saver in my 2 stroke bikes. Specifically for 2 stroke, wet clutch engines. It says 80W but is not that viscous.

I would argue that it is exactly that viscous or it wouldn't be high quality oil.

I won't argue. Bel Ray can do it for me. ;) https://www.belray.com/bel-ray-engine-oil-bel-ray-gear-oil-differences-explained/

"A common misconception about gear oils relates to the SAE rating of the product, what most people donít realize is that the SAE classification for gear oil and engine oils are different! The most common mistake is the belief that the viscosity of SAE 80W gear oil is much thicker than the viscosity of SAE 10W-40 motor oil. This is absolutely incorrect! A 10W-40 motor oilís viscosity is actually similar to the viscosity of 80W gear oil, and the viscosity of SAE 10W-30 is similar to 75W gear oil."
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General Discussion / Re: any pipe bangs on 2stroke 300 se ?
« Last post by papa_j on February 15, 2020, 01:42:31 PM »
Could it be your power valve?

what about it?

At least on my gas gas,  if the power valve slack (I don't know if that is even a thing) was not set correctly you would get a rattle from the power valve that happened at low revs or coming off the throttle.   There was a youtube video that captured the sound pretty well but I couldn't find it.  The fix was adjusting the tension in the mechanical power valve device.   Since the power valve is operated by cable pulley and electric servo you may need to adjust the cable. 


https://youtu.be/910C8o3JFJ0
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General Discussion / Re: any pipe bangs on 2stroke 300 se ?
« Last post by motif on February 15, 2020, 01:01:18 PM »
after getting heavy on the throttle?  detonation?

not detonation, more like metallic ringing, at lower revs. Coming off the throttle and going up revs. At higher revs it's fine.
Happened all of the sudden one day after wheelies practice.
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Sherco Tech / Re: What gearbox oil
« Last post by alang on February 15, 2020, 10:30:21 AM »
Gear oil weights are on different
Scale weights as motor oil.
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General Discussion / Re: any pipe bangs on 2stroke 300 se ?
« Last post by alang on February 15, 2020, 10:28:28 AM »
Never happens on my 17 300
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General Discussion / Re: any pipe bangs on 2stroke 300 se ?
« Last post by hannesd on February 15, 2020, 09:03:51 AM »
after getting heavy on the throttle?  detonation?
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