Spare parts and manufacturer 167 FMM Tornado

**fredjaw** · 07-19-2014, 05:32 PM

Hello,
I like the CG based pushrod engines and a looked for a quite big one.
I was happy to find a 167 FMM for low money.
I could not find manufacturer sign on the engine ? The only one is Tornado embossed at the basis of cylinder ? Who knows where it can come from ?
The bike has manufaturing date 2009.
The bike was (not) stored and piston was locked in cylinder from some rust.
Did not move from kick starteer gently pushed but came pushed by fingers after opening.
I fear it is not easy to find over bore pistons for this ?
Perhaps complete set cylinder + piston ?
Many thanks and lots of regards for all.
Fred

**humanbeing** · 07-19-2014, 10:24 PM

Piston's pin is 16mm?
Piston spec: http://www.mingyang-group.2u.com.tw/...on&%20ring.pdf #HD449
Rings spec: http://www.dongya.cn/prodlist.asp?page=8&tp=4&keywords=

http://item.taobao.com/item.htm?id=38106603832

**NZBrakelathes** · 07-20-2014, 03:14 AM

The 250cc has a modded crank too? Am I right in saying that?
Mine is 150 I would like bigger but what CC do you get without changing the crank?

**humanbeing** · 07-20-2014, 04:18 AM

YES.

There's 65.5mm direct-fit kit in tb. The thin 65.5 rings isn't par to the regular one's quality. http://forum.jorsindo.com/forum.php?...ad7tid=2373346
Higher compression ratio (thinner gasket or 125 "head" ) is a more reasonable way to mod 150.

**fredjaw** · 07-20-2014, 05:39 PM

Hello
Many thanks for fast answer !
Do you know how many manufacturer make or have made this 167FMM ?
I openend the engine quite fully today.
Clutch system was clogged and I cleaned as well as possible cylinder, piston and rings and I will try to start this way first.
I anything else is OK, I could order new piston and rings and rebore.
Lots of regards.
Fred

**humanbeing** · 07-21-2014, 12:00 AM

Who knows how many Chonda maker. #1 rule when buying Chinese parts ref to measurement (mm), shape etc. Famous air-cool CG250 is Lifan & Zongshen. Air-cool "167FMM" is replaced by water-cool "170MM" in domestic market (overloaded trike).
---
Hopefully it's not as bad as this http://www.motorfans.com.cn/bbs/view...=434490&page=1 POS.

**fredjaw** · 07-21-2014, 05:03 AM

Hello,
I forgot to check piston pin Ø ; is 15mm and not 16.
I will clean piston cylinder and rings today and I have to make seals to be able to re assemble.
I found various brand logo on several parts. I try to find names (no hurry).
Inside of engine is very clean and parts looks to be well machined in good metal.
I am starting in trying to understand history of all those Chonda engines.
Many thanks.
Fred