SSR SR300S Oil Change (Zongshen NC250/300)

[@SMMBHQ-cg2zy]

OR NAUTI STYLES ONE OR THE OTHERJUST BOUGHT THE COUNTERPART TO THIS BIKE A TM-36 BRANDED A TRAIL MASTER IN GREEN AND I LOVE IT , YOUR VIDEO WAS VERY HELPFUL MINE WAS FULL OF CONTAMINATED OIL / WATER MADE IT A MILKY COLOR .

[@nautiseaman9833]

Thanks for the comment and glad it helps. Hopefully the water in the oil isn't a sign of something like a head gasket leak or pump seal.

[@joshbennett4561]

Thanks for the vid man. I just bought one two weeks ago. I am a complete nube so this really helps. As you stated there is very little online about these bikes.

[@nautiseaman9833]

My pleasure. I just wish i had a little more video prowess and editing skills. Like i said in the video, just doing my part to help out the community. I plan on doing a video/review once i get back home in a couple weeks and actually ride it.

[@joshpashia637]

Ty changed the oil on my k6r was a bit tired and wasn't paying the best of attention when I pulled the main filter out lol. I got it all worked out though thanks to the video since its the 250cc variant of this motor

[@CX5EFWE]

Thanks for this video, I just changed mine in my Kayo K6R, identical engine less the big bore.

[@tieoneon1614]

I just picked up the K6 250 EFI model. Hows your motor feel? First real ride today after setting up everything, has massive low rpm power off idle but doesnt seem to have much mid to upper rpm, and sounds lean with pops/backfire occasionally. Your's pull hard mid to upper rpm?? I assumed this DOHC would, i think i got a clogged injector or fuel filter from the old test gas

[@richardmolina5378]

the video was 3 years ago i wonder how is the bike now.

[@nautiseaman9833]

The owner still has it and loves it! Can't find any faults for a budget steed. Ticks all the boxes and reliability is top notch.

[@brianricoh3242]

Always good to actually check torque specs, those 8mm bolts , I doubt are 15 ftlbs, more like 5 ft lbs

[@nautiseaman9833]

Yes indeed. If i actually had an SSR shop manual to refer to I would have. In hindsight, i should've referred to some of the other shop manuals i had on the shelves for similar bolts. I have a couple Honda CRF manuals that list torque values for oil filter/drain bolts at 12-16 ft lbs and the 6mm flange bolts (8mm heads) at 9 ft lbs.

[@nautiseaman9833]

Yes indeed. If i actually had an SSR shop manual to refer to I would have. In hindsight, i should've referred to some of the other shop manuals i had on the shelves for similar bolts. I have a couple Honda CRF manuals that list torque values for oil filter/drain bolts at 12-16 ft lbs and the 6mm flange bolts (8mm heads) at 9 ft lbs

[@deborahchesser7375]

Synthetic oil makes the clutch slip, if anyone was wondering

[@travisgilliam5]

Those are the same filters my Ktm Xcf-w 350 takes. Mine only has one of the black filters. Then one bigger main filter.

[@deanwaiwaiole5727]

Man! That bike look’s familiar!

[@nautiseaman9833]

Hmm. I wonder who it belongs to

[@MinecraftBuilder381]

hate to ask this dumb question but...... I have an EGL A17 450 with very similar engine. I have the same two screen filters under the black bolts on the sides of the engine and the bigger one also, just like what you have. There is also what appears to be the main drain plug at the bottom of the bike. Is this correct? If I only remove the three on the sides of the bike, I can see that all the oil comes out. Did you remove the very bottom (on the underside of the engine case)? or did you simple remove the three and clean and refill? Thanks

[@nautiseaman9833]

Yes, I warmed up the engine first then removed the bottom plug and removed the oil fill cap to vent. Once it was empty I started filming.

[@MinecraftBuilder381]

@@nautiseaman9833 I just watched the video again and saw that you pointed out the main drain plug at the beginning of the vid. Thanks for the quick response!!! I have an EGL A17 450, very similar to the SSR I think, but not too much out there on this bike. Its very good bike in my opinion so far. I also ride a KTM200 2 stroke and this bike rips very similar. Hope you are enjoying your bike. Keep the rubber side down!

[@davidtrepanier9751]

Nice video, helpful. Thanks! You mentioned you found the service manual, where did you find it? Also, noticed the rear suspension linkages are exposed, the skid plate doesn't reach that far back, and I could probably use one from a Japanese similar frame. Would you know if this frame is same or similar to an old CRF250 ?

[@nautiseaman9833]

It's not a service manual per se but an owner's manual that covers general bike operation and light maintenance. A PDF is available on SSR's website as well as a PDF for oil changes. However, the oil change is on a different bike with a different main oil filter and cover but is still a zongshen NC250 engine. Most servicing is done by trial and error and folks like us sharing the experience. I'm going to do a fork service vid shawtly as well as post some single track riding I've done. Regarding a skid plate, i have an older crf250r to compare and the SSR frame is a lot larger due to the size of the zongshen engine. The bottom end is larger than a crf450r's so the bottom cradle is lower and longer as well as the down tube. Looks like the only real solution right now is to fab one from aluminum or buy a sheet of HDPE and make a cardboard template then heat and bend it to the frame.

[@davidtrepanier9751]

@@nautiseaman9833 Good idea, thanks! Yeah, I'll be interested to learn how to change the fork oil as well.

[@mikesisca1]

Dave, join my fb page called ssr 250s/300s/450s owners group. Good buncha guys and alot of info there.

[@mxbadboy263]

Oil change procedure for Chinese dirt bike: " remove oil drain plug, push a real dirt bike over drain plug, install drain plug"! Live happily ever after!

[@deborahchesser7375]

Damn, that would be the easiest way to no problems wouldn’t it.

[@jeremiahmabry1752]

I put a 300 cylinder piston on my 250 and there alot of vibration on high revvs , does your bike do that also

[@mattnshell04]

What year shrouds for the CR did you buy to fit for graphics

[@nautiseaman9833]

I used the '14-'17 crf250r ('13-'16 450r) radiator shrouds from Acerbis and it seems like SSR has the '18+. The rest of the bike is '14-'17 plug and play plastics but since the SR300S was originally designed for dual exhausts i also used the FMF/UFO Plast single exhaust left side panel. UFO Plast also sells the side panels together for single exhaust conversion. www.ebay.com/itm/333787169645

[@shakalecofield5]

What about the 450 SSR?

[@nautiseaman9833]

@@shakalecofield5 Honestly can't say but it doesn't look like any current or previous CRF. If I had to guess the SSR450s looks similar to the current gen Suzuki RMZ450.

[@ethanconnolly1416]

Great video, Do you have a link to a website to get oem/performance parts for ssr bikes?

[@nautiseaman9833]

As far as performance parts go, SSR has a Pro Circuit pipe they offer though dealerships and MXRevival has the Lectron carb. For "OEM" engine and some other parts, go through SSR dealer or search eBay and Amazon for Zongshen nc250 or 300. Plenty of parts for maintenance and rebuilds when needed. GPX Moto also uses the NC250/300 so you can get engine wear items through them as well. Chassis and body are completely different though. Best thing to do is hop on Thumpertalk and go to the Chinese bike category. There you'll find everything related to the NC engine and the SR series bikes.

[@ethanconnolly1416]

@@nautiseaman9833 Your a life saver boss. That info is much appreciated!

[@tieoneon1614]

My question is the forks...what is available for seals and fork service? Springs too?

[@nautiseaman9833]

They are similar to Showa found on the 2017 generation Honda CRFs. For springs you would have to measure diameter and length then refer to guys at Racetech for a matching size with the spring rate you desire. Seals you'd have to pop them out and measure the old ones. Unfortunately, there isn't much documentation regarding wear parts. When you find the correct sizes and any other findings, pay them in here. I'm compiling a list of things that will hopefully help others in the future.

[@tieoneon1614]

@@nautiseaman9833 I ended up going with Kayo K6 efi cuz Im not great with carbs, lights, and got to see/ride one before buying. Fast Ace forks...think thats even worse to work on. Gonna change the rear spring and see if I can live with the front. So far it aint bad, even me being 210lbs

[@kyler_tj4554]

there is 1 filter in the right the other 2 are drain bolts

[@nautiseaman9833]

Drain is on the bottom

[@mayhemrising5837]

Any idea on what's the valve clearances ?

[@nautiseaman9833]

Factory spec are .004" - .006" or .10mm - .16mm for both intake and exhaust.

[@rafaelarodriguezmorales8226]

How much oil capacity you went for?

[@jram16cummins88]

What is the oil capacity I put one full quart in and almost a half quart but having a hard time seeing it in the sight glass

[@nautiseaman9833]

The total oil capacity is 1.7 quarts but during an oil change it's hard to get every single last drop out so it's more like just a gnat's ass over 1.5 quarts.

[@briahunt4048]

love the graphics. what bike did you specify when ordering these?

[@nautiseaman9833]

2016 CRF250R Attack Graphics from RMATVMC. Just make sure to get the 2014-2016 radiator shrouds as well. The graphics won't fit the SSR shrouds. However, I bet you can order the shroud graphics for 2017-2019 separately and get the rest for the 14-16.

[@jram16cummins88]

What was the oil capacity

[@nautiseaman9833]

Oil capacity is 1.7 qts fully drained

[@SMMBHQ-cg2zy]

CK OUT NAUTI YACHTS

[@ashishlama9210]

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