Performance Cams for 156FMI

**humanbeing** · 04-22-2013, 11:38 AM

Don't take my words. Ask the "experts" around you 1st.
Taiwanese is the "guru" modding these Honda based OHC machine by using "chinese" parts. Ask them http://wolfclub.org/ for other opinion.

**arancara** · 04-22-2013, 12:17 PM

hmmmm, its difficult as in the UK no one seems to know anything and most people have a very negative view of Chinese bikes. The USA seem to have more input as most Honda owners chuck Lifan engines into their bikes as its usually cheaper than rebuilding the original Honda engine, but the biggest problem is in other countries the motorbike laws are not as strict so people tend to get bigger bikes usually up around 250cc, rather than play around or tune 125cc engines compared to the UK.

So all in all information is very difficult to find, as the importers Lexmoto don't know much about their own products, plus this engine is new on their line so no one in the UK has really played around with them as all predecessors were the OHV varients.

If you can have a look again for me on taobao and find anything I would really appreciate it as I'm willing to take a gamble on the cam and big bore kit.

Thanks again!

**MJH** · 04-22-2013, 02:07 PM

This is your engine, and its 150cc sibling, the 200cc does have a longer stroke it shares with a 223cc.
If there is anyone that races CB125 then they would be the resource for performance cams.
Seems that a 150cc build up would be possible on it, but finding performance parts not so easy if the engine is not being raced.

http://www.lifan.com/English/Industr...6-df8eca5fb9eb

This is the only link i found, http://www.webcamshafts.com/index_bl...le_search.html same as the link I posted before.

**arancara** · 04-22-2013, 02:26 PM

Thanks, the cb125 taobao link human posted does seem to match up in shape to my cam as I managed to get cmpo to send me a picture of the stock ones they store, so that will be ordered as a pure gamble with the hope it fits.

Will order that big bore kit as well and increase it to 156cc from my understanding, are there any bigger kits that increase stroke or even kits bigger than 63.5mm as a 65mm piston would take capacity to 164cc.

**humanbeing** · 04-22-2013, 02:56 PM

Originally Posted by arancara

Will order that big bore kit as well and increase it to 200cc

It's 156 ONLY !!! Std 156 barrel (Jialing / Honda Megapro in Indonesia | std 200 barrel is taller) + flat-top piston (std Jialing 156 is convex http://item.taobao.com/item.htm?id=17587839133) that found in std 200. Ask the agent to order the Y230 ( ceramic coated piston + better rings http://www.aqatg.com/index.asp ) kit. The std kit is ~Y170

**arancara** · 04-22-2013, 03:10 PM

Originally Posted by humanbeing

It's 156 ONLY !!! Std 156 barrel (Jialing / Honda Megapro in Indonesia | std 200 barrel is taller) + flat-top piston (std Jialing 156 is convex http://item.taobao.com/item.htm?id=17587839133) that found in std 200. Ask the agent to order the Y230 ( ceramic coated piston + better rings http://www.aqatg.com/index.asp ) kit. The std kit is ~Y170

I edited my post before you replied as I was sitting down doing some engine maths and my mind sidetracked as I was replying on my phone, how much extra is the coating and rings?

**humanbeing** · 04-22-2013, 03:20 PM

Originally Posted by arancara

how much is the coating and rings?

~£6.5 btw the longer life one & the std.

**arancara** · 04-22-2013, 05:40 PM

Originally Posted by humanbeing

~£6.5 btw the longer life one & the std.

Without trying to sound daft, I am going to be using an agent - taobaonow. But I cannot see the uprated option even the translator isn't helping. Have you got a link or what do I advise the agent?

Its my first time doing this sort of thing.

Also what type of piston is required, flat or convex as in translation it all gets lost :S

**humanbeing** · 04-22-2013, 11:57 PM

Originally Posted by arancara

But I cannot see the uprated option even the translator isn't helping. Have you got a link or what do I advise the agent?

Just ask the agent will they help u get the Y230 kit in the middle of the page. If NO, change another.
Tbtrends also quite good in those buying from US/ Australia.
Flat unless u modded/changed the head. Std 156 Convex in std 125/150 will knock > noisy >

**arancara** · 04-23-2013, 10:53 AM

Thanks human, so I just tell the agent.

I would like this taobao link, however I require the Y230 set he does with FLAT & CERAMIC coated pistons (not convex) and the better piston rings.

I'm a bit confused as with using translate I can't seem to find any mentioning of flat pustons only convex.

Thanks again.