Thread: 150cc big bore problems
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#1 150cc big bore problems
- Join Date
- Dec 2013
- Location
- United Kingdom
- Posts
- 5
07-06-2014, 05:31 PMBought a TMEC enduro 125 with 2000 miles on the clock and a damaged big end.
Found a complete bottom end cheaply and swapped the Tmec side cases and top end on.
I decided to fit a 150 kit, matching head, better pipe and 27mm mikuni carb. After stripping the top end off and attempting to fit the big bore kit the barrel sleeve was too big for the crank case.
The bottom end is a FMI157 where the original was a 156.
So the moral is do not assume anything, measure before you spend your money.
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#2 Re: 150cc big bore problems07-06-2014, 08:21 PM
Which kit? The fleabay one won't fit the "good old honda" spec.
http://www.mychinamoto.com/forums/showthread.php?6631
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- Join Date
- Jul 2014
- Location
- Haiti
- Posts
- 1
07-07-2014, 06:55 PMCan the crank case not be machined larger on these bikes? I've heard of people doing that with big bore cylinders.
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#4 Re: 150cc big bore problems
- Join Date
- Dec 2013
- Location
- United Kingdom
- Posts
- 5
07-07-2014, 07:28 PMThe cost of stripping the motor, having it machined buying new gaskets and lubricant would be uneconomical.
I have just bought a 2011 skyteam engine with a 156 engine number in ebay for £50 and will use the other motor for a kids bike project.
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