Did CSC weld a special attachment point for the spring, or does the stock frame come equipped with the attachment point?

Wow, I just realized I made the first post on page 200 of this thread. :wtf: I never imagined this thread would garner 129,000 views and 3,000 replies when I posted it almost 14 months ago. :)

Incidentally, there is a very good chance the Zongshen RX3 will soon get its own forum at this website. :tup: We will continue hanging out here on this megathread, but I'm sure we will also get many new threads started on specific topics regarding to the Zongshen RX3. :) I will move all the existing RX3 threads to the new forum, including the Zongshen RX3 Sticky thread, which is currently posted at the top of this Dual Sport Forum. ;)

http://www.chinariders.net/showthread.php?t=14228

Only the first adjustment is so complex because the process I laid out also checks frame and swing arm alignment, that the alignment marks are even or determines they are not, which really isn't a big deal because the misalignment is easily overruled simply by sighting down the top of the chain to see if the sprockets are parallel and centered. If the sprockets are not parallel and centered you'll see a sideways kink when sighting along the top run of the chain. If working on the ground, bend over and look between your legs. If the marks are half a bubble off, they'll always be half a bubble off, so you can use them forever setting them half a bubble off and the chain will always be in alignment. You will also identify the tight spot on the sprocket. Mark it with a Sharpie and you'll never have to find the tight spot again. It will always be in the same place and need not be rechecked until it is removed from the hub and reinstalled.

Anyway, chain adjustment will make a lot more sense when you read the directions with the bike sitting in front of you. You'll need to do another adjustment after about 600 miles or so, and you'll probably do a third adjustment when you replace a worn out rear tire. O-ringed chains last a long time with minimal care. I expect you'll go through three, maybe four rear tires before you notice the chain stretching more than it used to, which will mean time for a new chain and sprockets. The Cyclone has a 520 chain, which is stronger than most chains on 250cc bikes, so I expect loooooong chain life.

Looks like the muffler weighs about the same as a CRF. And the trailer it sits on. I wouldn't be surprised if the muffler is lighter than it looks. Doesn't matter to me until I get a wild hair and a few days off to design and build a new exhaust.

I hope the RX3 muffler is lighter than it looks. :lol: One way or the other, I would like an accurate figure for its weight. ;) Rick Ramsey reported the muffler for the Honda CRF250L weights 12 pounds 4 ounces, without the heat shield. :wtf:

http://www.rickramsey.net/CRF250Lmods.htm

ACE Hardware has a large selection of quality machinery springs if anyone is interested in sourcing a new spring themselves.



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Stand spring tool http://www.motorfans.com.cn/bbs/view...authorid=75082 made by a mechanic

9.2lbs including clamp and heat shield

There is a catalytic converter in the very front of the muffler. It is about 3" long and about that in diameter.

Biggest obstruction is the end tube on the muffler. The internal baffling is a perforated core with packing surround.

Overall looks like a very nice design for maximum flow.

I do not know the answer to that. I just attached the spring in the hole provided. Perhaps Joe can help with that question. :)

Once again, thank you for posting that excellent information, Jim. :tup:

That was a good solution. I would've tried to remove the plug and made a terrible mess.

Welcome!

I hope you have many happy miles on your new RX3.

Thank you, Tony. :)

I'm also pleased with your decision. I get to live vicariously through you. :D

As FastDoc might say, "I live to serve." :lol: