Go Back   ChinaRiders Forums > Technical/Performance > Adventure Bikes > Zongshen RX3
Register FAQ Community Calendar Today's Posts Search
Reply
 
Thread Tools Search this Thread Display Modes
Old 07-21-2017, 01:16 PM   #121
RC   RC is offline
 
RC's Avatar
 
Join Date: Apr 2017
Location: EurAsia
Posts: 46
Does anyone hear their valves sounding tappier after adjusting? I just did my recent one and had to finish up in a bit of a hurry and I swear it sounds more tappy than before. Is that normal or am I just paranoid? I actually think I set the closer to .06 than .08, but it fired up and seems to idle smoothly. And yes I'm quite confident my valve covers are on.

Or maybe my ears are just playing tricks on me, because I was pretty sure that the bike got quieter after my recent oil change.


 
Reply With Quote
Old 07-23-2017, 12:04 PM   #122
2LZ   2LZ is offline
 
2LZ's Avatar
 
Join Date: Mar 2010
Location: Volcano, Ca
Posts: 7,112
Quote:
Originally Posted by RC View Post
Does anyone hear their valves sounding tappier after adjusting? I just did my recent one and had to finish up in a bit of a hurry and I swear it sounds more tappy than before. Is that normal or am I just paranoid? I actually think I set the closer to .06 than .08, but it fired up and seems to idle smoothly. And yes I'm quite confident my valve covers are on.

Or maybe my ears are just playing tricks on me, because I was pretty sure that the bike got quieter after my recent oil change.
LOL! I know EXACTLY what you're talking about! I set Mrs. 2LZ RX3 and they sound "as expected" but on my RX3, I swear they make more noise, especially when cold. They sound basically normal when it's hot....but still rattlier than Mrs 2LZ. As we all are, I was totally anal in making sure the gaps on both RX3 were .08.

I think it's my paranoia after hearing some of the mishaps here with setting the valves too tight. I'm still thinking that I may recheck mine again....,out of paranoia. ;-)
__________________
"Light a fire for a man, and you heat him for a day. Light a man on fire, and you heat him for the rest of his life."

2007 Suzuki DRZ400S (SM convert)
2009 Q Link XP 200
1967 BSA B25 250cc Starfire
2022 Royal Enfield Interceptor 650
2023 Royal Enfield Scram 411
1948 Royal Enfield Model G 350


 
Reply With Quote
Old 07-23-2017, 03:47 PM   #123
RC   RC is offline
 
RC's Avatar
 
Join Date: Apr 2017
Location: EurAsia
Posts: 46
Yes its a little quieter when warmed up, but still it has that thumper sound to it. I don't notice any reduction in power, so I guess its all good, although I have been rather gentile on the RPMs. Strangely though, I've had a bunch of stalls since the latest adjust. And my tail/brake light went out. Gonna check out the fuses tomorrow.


 
Reply With Quote
Old 09-11-2017, 07:54 PM   #124
fjmartin   fjmartin is offline
 
Join Date: Sep 2016
Location: Redmond, WA.
Posts: 534
I've got 13269.1 miles on the bike and it has been 4500 miles since the last time I checked and adjusted the valves. As I had previously stated, the intake valves haven't moved since around mile 1500 but this is the first time that my exhaust valves were still spot on. NICE! I guess they do finally settle in! I'll keep checking every 5000 miles now and see what happens.

Joe
__________________
2017 BMW F800GS Adventure


 
Reply With Quote
Old 09-11-2017, 08:34 PM   #125
pyoungbl   pyoungbl is offline
 
Join Date: Feb 2016
Location: Portsmouth, Virginia, USA
Posts: 632
Joe, this is good news to me. I talked to another RX3 owner recently and he was talking about the intake valves receding into the head. It looks like this is something for each of us to monitor. A little record keeping is in order. I have been creeping up on longer valve check intervals so my next one will be interesting...about 2500 miles. The bike runs so well that I hate to tempt fate.


 
Reply With Quote
Old 09-14-2017, 10:59 AM   #126
Color of the day   Color of the day is offline
 
Color of the day's Avatar
 
Join Date: Apr 2017
Location: 484 miles east from the geographical center of the United States
Posts: 45
Hit the 500 mile mark

I just hit the 500 mile mark finally. I just got clearance from my Doc to ride and was able to put some miles on it.

I am going to perform the valve adjustment. Looks like fun. I'll keep you guys posted as i have never done this before.
__________________
"Tolerance is not the same thing as acceptance, and acceptance is not the same thing as an endorsement"

Life Member VFW / Life Member NRA / WWG1-WGA


 
Reply With Quote
Old 09-14-2017, 04:43 PM   #127
fjmartin   fjmartin is offline
 
Join Date: Sep 2016
Location: Redmond, WA.
Posts: 534
Take it easy the first time, remove the plastics and you can tilt up the tank rather than removing it. I suggest cleaning the bike before so no dirt drops into the open covers. Also before removing the spark plug make sure to use compressed air or something to make sure no small rocks are in that whole the plug goes in....they could fall into the cylinder when you pull the plug. Make sure to follow the tutorial on aligning the timing marks. Don't overtighten the valve covers when you put them back on. Use locktite when you put the plastics back on. Use anti-sieze on the port hole covers and don't overtighten them. Undoing the two bolts on the right side radiator will allow you to push them forward to make room to get your hands in for the exhaust valves. Random thoughts done!!!
__________________
2017 BMW F800GS Adventure


 
Reply With Quote
Old 09-15-2017, 11:41 AM   #128
Inroads   Inroads is offline
 
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
I recently purchased my 2nd RX3 and the PO had said he adjusted the valves on the tight side of the spec.
Bike takes 2 or 3 stabs at the starter and then will die off the idle until warmed up and then it seems to run ok.

I'm going to check them even though the bike has just 1200 miles and it sounds
To me as if he set them up on the too loose side possibly.


 
Reply With Quote
Old 09-15-2017, 05:07 PM   #129
rjmorel   rjmorel is offline
 
rjmorel's Avatar
 
Join Date: May 2007
Location: Warshington
Posts: 928
I'm thinking he set them up to tight because of the hard starting and dying issue . Do you hear the "tappy valves are happy valves "noise? tick , tick ,tick. rj
__________________
Live Zong, and Prosper


 
Reply With Quote
Old 09-15-2017, 10:53 PM   #130
Inroads   Inroads is offline
 
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
^^^ So if valve clearances increase when motor gets hot I'm thinking PO adjusted them too tight.

Which makes sense that it runs better after warmed up. Thanks for your help.

I need to get some happy slappy valves.


 
Reply With Quote
Old 09-16-2017, 10:50 AM   #131
fjmartin   fjmartin is offline
 
Join Date: Sep 2016
Location: Redmond, WA.
Posts: 534
It's a fact:
Attached Images
File Type: jpg 1vz3pi.jpg (51.6 KB, 299 views)
__________________
2017 BMW F800GS Adventure


 
Reply With Quote
Old 09-16-2017, 09:21 PM   #132
Inroads   Inroads is offline
 
Join Date: May 2015
Location: Wimberley Texas
Posts: 193
So it turns out that my cold starting and cold idle issues were the result of too

Slappy happy....checked the valves today and they were all in the .005" range

So I closed them up to .003" and my bike is all happy now....must be careful to not go too

Slappy happy.

On adjustment notes have the go-no go gage technique working with the .003" and .004"

Is the way to go.

Also the only way to easily check the exhaust for me is to take the right radiator completely out of the way....so much easier....


 
Reply With Quote
Old 09-16-2017, 09:43 PM   #133
jbfla   jbfla is offline
 
Join Date: Oct 2015
Location: FL, GA, NC
Posts: 771
Quote:
Originally Posted by Inroads View Post
..........

Also the only way to easily check the exhaust for me is to take the right radiator completely out of the way....so much easier....
That's strange. For some unknown reason, I move the left radiator to check the exhaust valves.....



jb
__________________
2016 Honda CB500F......2017 Triumph Street Twin
2014 XT 250........


 
Reply With Quote
Old 09-20-2017, 03:49 PM   #134
Color of the day   Color of the day is offline
 
Color of the day's Avatar
 
Join Date: Apr 2017
Location: 484 miles east from the geographical center of the United States
Posts: 45
Quote:
Originally Posted by Color of the day View Post
I just hit the 500 mile mark finally. I just got clearance from my Doc to ride and was able to put some miles on it.

I am going to perform the valve adjustment. Looks like fun. I'll keep you guys posted as i have never done this before.
Here is what I have done so far. It was pretty easy. I have to pick up some locktite, antiseize, and a 10mm allen wrench before I open any of the covers that allow things inside the motor. Of all the things I don't have a freakin allen wrench. There is not much room to work.

Kudos to Mr. fjmartin for the 2x4 idea. That is pretty slick..
Name:  bike.jpg
Views: 485
Size:  42.8 KB
__________________
"Tolerance is not the same thing as acceptance, and acceptance is not the same thing as an endorsement"

Life Member VFW / Life Member NRA / WWG1-WGA


 
Reply With Quote
Old 09-21-2017, 12:34 PM   #135
fjmartin   fjmartin is offline
 
Join Date: Sep 2016
Location: Redmond, WA.
Posts: 534
Glad that worked for ya!
__________________
2017 BMW F800GS Adventure


 
Reply With Quote
Reply



Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 07:36 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.