Junior
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Post by sprocket on Aug 26, 2011 13:36:32 GMT -6
I have never seen any performance gains in just changing to a K&N or UNI. You need to change the exhaust as well and up jet 4 or 6 sizes.. then you will see a gain, but the gas miles will also drop....
Some people use an oiled UNI inside the stock air box...still fairly free flowing and cuts the noise as well....just remove the stock filter and add some more intake holes in the stock box with a 1/4 drill
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Junior
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Post by sprocket on Aug 22, 2011 18:45:17 GMT -6
Sounds good Doug.. ya that hill will kill a new engine...even at 100 miles break-in, take it really easy...
Hills stress the engine more than ANY other thing...even running at WOT for hours...
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Junior
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Post by sprocket on Aug 21, 2011 14:51:43 GMT -6
I do the break-in like JR...and city traffic 'stop and go' driving is excellent.... however you need to run the scooter for say 30 minutes and then let it cool down. The hot/cool cycles is very important to tighten the case seams and set the gaskets...it also allows parts in the engine to expand and contract...
Use regular oil 10W30 for the first 500 miles but change it at 50 miles, 250 miles and 500 miles...
after 500 miles go to 10W40.
I only switch to synthetics after 1000 miles... but others differ...
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Junior
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Post by sprocket on Aug 20, 2011 14:01:07 GMT -6
What problems? It is a fairly standard GY6 scooter
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Junior
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Post by sprocket on Aug 7, 2011 17:43:58 GMT -6
You would be absolutely astounded by how many people never oil their filters...K&N or UNI... No wonder the rings fail on these scooters in 2000 miles! Didn't mean to insult your intelligence or experience... just the vast majority are clueless on this topic... that is why I mention it like a dirty CD.. (broken record for us old folks) ;  |
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Junior
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Post by sprocket on Aug 7, 2011 11:08:51 GMT -6
Make certain to oil it with K&N oil.. the oil does the filtering.. without oil they are useless...
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Junior
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Post by sprocket on Aug 5, 2011 18:12:58 GMT -6
What are you talk about .050 is that metric?
The valves on a 150cc and 175cc should be .004 inch intake and .005 exhaust...
Are you certain you have the engine at top dead centre on the cam sprocket?
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Junior
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Post by sprocket on Aug 5, 2011 11:41:41 GMT -6
Video section is a great idea...I'm always referring people to them because a moving picture is worth 1 million words ; |
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Junior
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Post by sprocket on Aug 4, 2011 15:18:55 GMT -6
I believe this is the link...JR
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Junior
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Post by sprocket on Aug 4, 2011 9:52:59 GMT -6
Check the diaphragm in the top of the carb.. it could have a hole or it might be twisted. There is usually a cut-out in the rubber edge that aligns with a tab on the rim of the carb...
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Junior
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Stranded
by: sprocket - Aug 1, 2011 13:32:40 GMT -6
Post by sprocket on Aug 1, 2011 13:32:40 GMT -6
Good price! way to go....
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Junior
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Stranded
by: sprocket - Aug 1, 2011 10:24:42 GMT -6
Post by sprocket on Aug 1, 2011 10:24:42 GMT -6
You might try fixing the intake elbow with high temperature red silicone...it often works well if you can get it on the inside and outside and let it set-up overnight...
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Junior
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Post by sprocket on Jul 29, 2011 18:18:32 GMT -6
@ Evilgenius
Your Lifan have a 4 bolt valve cover with large bolts straight through the cover? Mine 2010 does...really weird engine, I have never seen another like it!
I agree... if I was to replace the engine in mine I would be going 250ccs..bolts right in...
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Post by sprocket on Jul 29, 2011 11:28:30 GMT -6
Here are some common VIN codes on the WMI database:
LAN Changzhou Yamasaki Motorcycle Co., LTD.
LAE China Qingqi Group, Inc.
LHJ Chongqing Astronautical Bashan Motorcycle Manufacture Co., LTD.
LSR Chongquing Hi-Bird Motorcycle Industry Co., LTD.
LLC Chongqing Kinlon S & T Group Co., Ltd.
LZS Chongqing Zongshen Group
LCE Chunfeng Holding Group Co., LTD. - CFMOTO - Model Year 2003 and newer
RF4 Chyong Horng Enterprise Co., LTD.
L5X Cixi Konced Motorcycle Co., LTD.
LB2 Geely
LAA Jialing
LL8 Jiangsu Linhai Power Machinery Group - Linhai - Model Year 2006 or newer
RFB Kymco
LAW Power Sports Factory - Agent For - Qianjiang - Model Year 2003 and Newer
L4Y Qingqi Group Ningbo Rhon
5RY Roketa * Shows as an American manufacture
RFG Sanyang Industry Co. LTD.
LJ4 Shanghai Jmstar Motorcycle Co.
L8Y Shanghai Shenke Motorcycle Co., LTD
RFB STR Motorsports, Inc. dba Kymco USA
LFG Taizhou Chuanl Motorcycle Manufacturing Co., LTD.
LYD Taizhou City Kaitong Motorcycle
L5Y Taizhou Zhongneng Import and Export Co., LTD.
LFE Wuxi Futong Motorcycles Co LTD
LF3 Chongqing Lifan
L1E Zhejiang Lingyun Motorcycle Co., LTD.
L8X Zhejiang Summit Huawin Motorcycle Co., LTD.
LFF Zhejiang Taizhou Wangye Power Co., LTD.
L4S Zhejiang Xingyue Vehicle Co., LTD.
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Junior
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Post by sprocket on Jul 29, 2011 11:05:11 GMT -6
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