Go Back   ChinaRiders Forums > Technical/Performance > Street
Register FAQ Community Calendar Today's Posts Search
Reply
 
Thread Tools Search this Thread Display Modes
Old 08-10-2017, 12:52 PM   #1
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Lifan 200cc issue

So I recently got a lifan 200cc motor. Ran for about 2 miles and stopped. Got it home, opened valve cover, found the exhaust side pushrod sitting next to the rocker arm wedged in. I pulled the rod out and found about a 1/32"-1/16" bend in it. Replaced both rods and set correct clearance to about 0.05mm. But now it won't fire up, is there anything I can do? Something I did wrong or something else possibly damaged?


 
Reply With Quote
Old 08-10-2017, 01:19 PM   #2
Mudflap   Mudflap is offline
 
Join Date: Sep 2014
Posts: 1,929
I doubt if the push rod popping out of the socket would damage anything, but the big question is why did it pop out in the first place? Any chance you over-revved the engine to the point of valve float and bent a valve? I'd do a compression test.


 
Reply With Quote
Old 08-10-2017, 01:46 PM   #3
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Quote:
Originally Posted by Mudflap View Post
I doubt if the push rod popping out of the socket would damage anything, but the big question is why did it pop out in the first place? Any chance you over-revved the engine to the point of valve float and bent a valve? I'd do a compression test.
Oh forgot to mention that. When I reinstalled the pushrods I found that the clearance for the bent side was way out of spec. It had a large gap. So Im thinking it was just too loose and when I actually started riding it it popped out. But I'm gonna do a compression test next. I do feel a considerable amount of air coming out when I remove the spark plug. But I will check the actual psi levels.


 
Reply With Quote
Old 08-13-2017, 06:32 PM   #4
humanbeing   humanbeing is offline
 
humanbeing's Avatar
 
Join Date: Mar 2008
Posts: 2,436
There's 2 type:

Check it 1st b4 order anything

大东 http://www.cqdadongqimen.com/ a big player in OEM
正洲 (100% owned by Taiwanese, some of their product found in chinese made Honda/ Suzuki ) https://item.taobao.com/item.htm?id=548474724568 also OKish
===
Stock water-cooled LF200 push rods are made of Al alloy https://item.taobao.com/item.htm?id=15971280760
__________________


 
Reply With Quote
Old 08-13-2017, 11:14 PM   #5
wheelbender6   wheelbender6 is offline
 
wheelbender6's Avatar
 
Join Date: May 2015
Location: Houston area
Posts: 1,902
What bike did you install that Lifan 200 in?
__________________
"Its not WHAT you ride; its THAT you ride"


 
Reply With Quote
Old 08-14-2017, 08:54 AM   #6
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Quote:
Originally Posted by humanbeing View Post
There's 2 type:

Check it 1st b4 order anything

大东 http://www.cqdadongqimen.com/ a big player in OEM
正洲 (100% owned by Taiwanese, some of their product found in chinese made Honda/ Suzuki ) https://item.taobao.com/item.htm?id=548474724568 also OKish
===
Stock water-cooled LF200 push rods are made of Al alloy https://item.taobao.com/item.htm?id=15971280760
That's a huge help. Thanks for that.


 
Reply With Quote
Old 08-14-2017, 08:55 AM   #7
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Quote:
Originally Posted by wheelbender6 View Post
What bike did you install that Lifan 200 in?
1971 honda cl100.


 
Reply With Quote
Old 08-14-2017, 01:51 PM   #8
culcune   culcune is offline
 
culcune's Avatar
 
Join Date: May 2006
Location: Yuma, Arizona
Posts: 9,056
Quote:
Originally Posted by wheelbender6 View Post
What bike did you install that Lifan 200 in?
Inquiring minds want to know!
__________________
"They say that life's a carousel, spinning fast you got to ride it well..."

TGB Delivery Scooter 150
TMEC 200 Enduro--carcass is sadly rotting in the backyard


 
Reply With Quote
Old 08-15-2017, 12:45 AM   #9
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Doubling the displacement makes me giggle.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 08-15-2017, 09:04 AM   #10
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Quote:
Originally Posted by Weldangrind View Post
Doubling the displacement makes me giggle.
I would be giggling with you, if the flipping motor hadnt killed itself.


 
Reply With Quote
Old 08-28-2017, 11:51 AM   #11
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Any word on the compression test?
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
Reply With Quote
Old 09-09-2017, 06:34 PM   #12
Spiderman   Spiderman is offline
 
Join Date: Aug 2017
Posts: 9
Quote:
Originally Posted by Weldangrind View Post
Any word on the compression test?
So I got it running pretty well for like a week. Now it wants to lurch and studder and bog down. I've taken the carb apart and cleaned it. I've replaced the fuel. Tried various setting on the carb. The spark plug isnt white or black. It's a nice chocolate color. So I don't know. Anyone have any suggestions?


 
Reply With Quote
Old 09-10-2017, 01:21 PM   #13
wheelbender6   wheelbender6 is offline
 
wheelbender6's Avatar
 
Join Date: May 2015
Location: Houston area
Posts: 1,902
There is a running Honda SL 125 for sale on my local Craigslist for cheap. I'm tempted to buy it and install the 200cc Lifan. I rode an xl 125 for years in my younger days.
__________________
"Its not WHAT you ride; its THAT you ride"


 
Reply With Quote
Old 09-16-2017, 01:00 PM   #14
Weldangrind   Weldangrind is offline
 
Weldangrind's Avatar
 
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
Quote:
Originally Posted by Spiderman View Post
So I got it running pretty well for like a week. Now it wants to lurch and studder and bog down. I've taken the carb apart and cleaned it. I've replaced the fuel. Tried various setting on the carb. The spark plug isnt white or black. It's a nice chocolate color. So I don't know. Anyone have any suggestions?
Buy a new CDI for testing purposes; it's always good to have a spare. Aside from that, I'd install a 30mm Mikuni, which is easily found on eBay for less than $40 shipped. They're easy to tune and jets are widely available.
__________________
Weldangrind

"I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer


 
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 03:34 AM.


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