Forums
New posts
Search forums
Members
Current visitors
New profile posts
Search profile posts
What's new
New posts
New profile posts
Latest activity
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Everything Dirt Bike
General Dirt Bike
cr125 > 144cc Big Bore Kit, is it worth it?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="josmoloco" data-source="post: 32645" data-attributes="member: 462"><p>eric gore, CR125 2000-04 <em>134cc</em>$500</p><p></p><p></p><p>You can only bore a 2004 to 134 as far as I know</p><p></p><p></p><p>Quote " I built my son a 134 (bore only). Had the head milled (actually material added then reshaped I think) to increase the compression, and had it ported. That along with the ovberbore really jacked up the compression. The compression increases on a 2stroke when you bore it. I also added a V-force reed, PC pipe and Barnett clutch. Let me tell you, this thing is fast. Really fast. My engine builder dyno'd the bike before building it, then after. He ran 3 passes after the mods and the last pass was the strongest, making 7.5 HP more HP than stock. My engine builder is reluctant to state how much HP an engine makes, because of wheel spin which reads out as clutch slip, and he says HP is relative, that's why he just showed me the amount of increase. If I was to do it again, I would stroke the engine as well."</p></blockquote><p></p>
[QUOTE="josmoloco, post: 32645, member: 462"] eric gore, CR125 2000-04 [I]134cc[/I]$500 You can only bore a 2004 to 134 as far as I know Quote " I built my son a 134 (bore only). Had the head milled (actually material added then reshaped I think) to increase the compression, and had it ported. That along with the ovberbore really jacked up the compression. The compression increases on a 2stroke when you bore it. I also added a V-force reed, PC pipe and Barnett clutch. Let me tell you, this thing is fast. Really fast. My engine builder dyno'd the bike before building it, then after. He ran 3 passes after the mods and the last pass was the strongest, making 7.5 HP more HP than stock. My engine builder is reluctant to state how much HP an engine makes, because of wheel spin which reads out as clutch slip, and he says HP is relative, that's why he just showed me the amount of increase. If I was to do it again, I would stroke the engine as well." [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Everything Dirt Bike
General Dirt Bike
cr125 > 144cc Big Bore Kit, is it worth it?
Top