Posts
414
Joined
10/3/2013
Location
Fresno, CA
US
Edited Date/Time
2/5/2018 4:41pm
Lets start this off as I’ve never really rode a 125 besides for like 2 laps one time when I was like 14, so I don’t know a ton about them so I need some help!
Currently building an 04 CR125 and the guy I bought it from destroyed the cylinder. The piston broke a ring and screwed the cylinder.
So I have 2 options I’m thinking and that is the following..
1; Send cylinder off to Eric Gorr, hoping that he can fix it and make it as a 134. It’s about $450 or so.
2; Get a brand new stock bore cylinder and piston and that runs me about $300 or so.
What do you guys think I should do? And what would be funner to ride(Like I said, new to the whole 125 area)?
Currently building an 04 CR125 and the guy I bought it from destroyed the cylinder. The piston broke a ring and screwed the cylinder.
So I have 2 options I’m thinking and that is the following..
1; Send cylinder off to Eric Gorr, hoping that he can fix it and make it as a 134. It’s about $450 or so.
2; Get a brand new stock bore cylinder and piston and that runs me about $300 or so.
What do you guys think I should do? And what would be funner to ride(Like I said, new to the whole 125 area)?
Also, before you send out to Gorr, search these forums. A lot of people were posting recently about issues.
Buy a new oem cylinder ?
Look closely you can see the crack. This cyl has maybe 50-60 hrs max. 100oct gas hp2 premix 32:1. I think a new oem cyl will be your cheapest/most reliable bet if that is what your going for. If not. Go 134 big bore on that damaged cyl.
The Shop
Keep it stock. If you want more power get a 250.
I chose the low to midrange port because i use it in the woods 70% the rest is supermoto / mx.
Allready 60 hours on it and i love it.
On the other hand i know a guy that blow up hes 144 kit same as mine after few hours
But I would put the blame on him becous he doesn’t mix enough oil for SM use in my opinion
I think I may have the bike ported and keep it a stock bore 125. Anybody have recommendations for a good tuner? I was always faster on the big bore machines and they were easier to ride but stock 125's are more fun IMO. You can hold a gear longer with a 125 vs big bore and the power just feels more organic.
If you are after pure fun keep it a 125. If you are a little heavier or want to clear jumps, other obstacles and exit corners a little easier go big bore.
Thinking I will end up going the big bore route. Any one have any good people in mind for a job like that?
That being said, if I was looking for a max effort big bore race engine ( I was not ) I would look into HPracedevelopment, Terry Varner, etc.
If Millenium has Tom Morgan running the motor side I will be sending my other 125 cylinder there soon. It needs replating & TM knows his stuff and no mistake
To this day, it's still not right. Granted it's been sitting for the past 10 years, but is one of those bikes that won't leave. Actually used to be Jeff Willoh's old Arenacross bike! *neat*
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