New Zongshen RX3 (ZS250GY-3) Dual Sport

[Wolftrax]

The good news is it has threaded adjusters as opposed to shim and bucket. In hind sight I'd rather check the valves every 2500 miles with threaded adjusters than every 15000 miles with a shim and bucket. One never has the correct shims on hand and the bike sits idle while waiting for order fulfilment and shipping to get the correct shim.

[Wolftrax]

Originally Posted by SpudRider

I agree. One should certainly check the valve lash after the engine breakin. Then, I would check the valve lash again after 2,500 miles. If the valve lash is good, or the adjustment is minor, one can safely extend the inspection schedule. That is the procedure I followed with my Zongshen ZS200GY-2.

Apparently, CSC waited until 8,000 miles to check the valve lash on their red bike which underwent emissions testing. The Silk Road Rider traveled from the east coast of China to Istanbul, and I doubt he checked, let alone adjusted the valve lash during the entire trip.

If I may ask, where did you find the AJP maintenance schedule? Can you please provide a link?

Here you go.
http://issuu.com/ajpmotos/docs/ajp_pr5_user_manual_en

[SpudRider]

Originally Posted by Wolftrax

The good news is it has threaded adjusters as opposed to shim and bucket. In hind sight I'd rather check the valves every 2500 miles with threaded adjusters than every 15000 miles with a shim and bucket. One never has the correct shims on hand and the bike sits idle while waiting for order fulfilment and shipping to get the correct shim.

Once again, I agree. The most tedious, and time consuming part of the procedure is taking everything apart, and putting it back together. Adjusting valve tappets is very easy and very quick, as opposed to performing valve shim exchanges.

[SpudRider]

Originally Posted by Wolftrax

Here you go.
http://issuu.com/ajpmotos/docs/ajp_pr5_user_manual_en

Thanks for posting the link. The Gas Gas owner's manual specifies checking the valve lash every 30 hours. If you average 30 mph, that equates to 900 miles. I think everyone is being very conservative with these valve inspection schedules. Here is the link to the web page for the Gas Gas manuals. Scroll down the page and choose the 2014 EC Cami 250.

http://www.gasgasmotos.es/en/manuals.html

[Wolftrax]

Was browsning through the AJP owners manual and it appears the AJP uses a reusable oil filter. Does the RX3 come with the same? If not, I don't see it being a problem sourcing the AJP part amd using on the RX3.

[SpudRider]

Originally Posted by Wolftrax

Was browsning through the AJP owners manual and it appears the AJP uses a reusable oil filter. Does the RX3 come with the same? If not, I don't see it being a problem sourcing the AJP part amd using on the RX3.

The Zongshen RX3 comes with three, re-usable, stainless steel, wire mesh, oil filters. You can also buy a paper version of the larger, main oil filter.

Indeed, you can use oil filters from any of the many motorcycles which employ the Zongshen NC250 engine.

[Wolftrax]

Originally Posted by SpudRider

Thanks for posting the link. The Gas Gas owner's manual specifies checking the valve lash every 30 hours. If you average 30 mph, that equates to 900 miles. I think everyone is being very conservative with these valve inspection schedules. Here is the link to the web page for the Gas Gas manuals. Scroll down the page and choose the 2014 EC Cami 250.

http://www.gasgasmotos.es/en/manuals.html

Thanks for the lionk Spud. When I checked the Gas Gas valve adjust service intervals it showed the first at 5 hours and subsequent evry 60 hours. Using the 30mph formula that will equate to 1800 miles.

[SpudRider]

Originally Posted by Wolftrax

Thanks for the lionk Spud. When I checked the Gas Gas valve adjust service intervals it showed the first at 5 hours and subsequent evry 60 hours. Using the 30mph formula that will equate to 1800 miles.

You are right. Thank you for correcting my mistake.

[SpudRider]

Originally Posted by Wolftrax

Was browsning through the AJP owners manual and it appears the AJP uses a reusable oil filter. Does the RX3 come with the same? If not, I don't see it being a problem sourcing the AJP part amd using on the RX3.

The following video demonstrates an oil change for the Zongshen NC250 engine. You can view the three, stainless steel, oil filters during this process.

[Wolftrax]

Originally Posted by SpudRider

The following video demonstrates an oil change for the Zongshen NC250 engine. You can view the three, stainless steel, oil filters during this process.

Thanks for the vid. After watching the video I came away with the impression this engine is engineered for rider maitenance. Threaded tappet adjusters, reusable filters, easy access. The service intervals seem short, but overall will be easier and a heck of a lot less$$$. The value of this bike extends past the initial purchase price and continues with reduced service costs for the owner/rider/self maitenance individual.

[SpudRider]

I agree. My Zongshen ZS200GY-2 is very easy to maintain. In fact, it requires the least maintenance of all my motorcycles. It is also very inexpensive to operate, repair, and maintain. I'm confident the Zongshen RX3 will exhibit the same characteristics.

[Wolftrax]

The AJP PR5 uses premium unleaded fuel. My Husky and Super Tenere also required 91 or better but ran fine using lower octanes when premium was not available. Is this the case for the RX3 as well?

[SpudRider]

Originally Posted by Wolftrax

The AJP PR5 uses premium unleaded fuel. My Husky and Super Tenere also required 91 or better but ran fine using lower octanes when premium was not available. Is this the case for the RX3 as well?

The Gas Gas owner's manual specifies RON 98, which is 93 octane in the United States, or premium fuel.

[SpudRider]

The Zongshen RX3 Owner's Manual specifies 93 octane, on page 11. If this is RON 93 octane, it would equal 89 octane in the United States, or high octane fuel.

[SpudRider]

The AJP owner's manual specifies 95 octane on page 6. I must assume this is RON 95 octane, which is 91 octane in the United States.