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TunaBro Liked a reply to forum topic TunaBro's 2003 CR125 build
4/2/2021 2:08am
Just wanted to peak at how it’ll look... 
This forum topic has 153 replies.
TunaBro Liked a reply to forum topic TunaBro's 2003 CR125 build
3/29/2021 1:41pm
Motor progress this weekend. Finally got that collar on and thought I couldn’t find neutral but all is good so far. 
This forum topic has 153 replies.
fullfloater Liked a reply to forum topic Roczen is the new James Stewart
1/24/2021 12:37pm
There will never be a new James Stewart
This forum topic has 25 replies.
SimonGreen Added a reply to What Cr125r cases will interchange w/ 2004?
7/4/2020 2:30pm Hi, Looking at the following it appears that the cases for other years aren't interchangeable sadly; http://www.oem-cycle.com/HONDACR125BIKEID.shtml The 03's and 04's are becoming a nightmare for parts as they were single year models. I'm getting to the point with my 03 where I worry that I'm going to have something fail that I can't replace.. Si
SimonGreen Added a reply to TunaBro's 2003 CR125 build
6/30/2020 1:18am Just a heads up but you can still get these from Fowlers. They're on back order but I got one for my 03 mid last year. Took a few weeks... Here's my OEM build.. https://www.vitalmx.com/forums/Bike-Builds,46/CR125-2003-Ill-just-clean…
SimonGreen Added a reply to YZ125 2016 UK Jetting - Help!
6/29/2020 5:22am Hi, Managed to get some time on the stand today and we've ended up with a 40 pilot at 2.25. Throttle response is clean now up to 1/8th and all of the lumpyness has gone and we're getting a solid idle; doesn't miss a beat! Opening the throttle further without load seems pretty clean but I reckon it may be...
SimonGreen Added a reply to YZ125 2016 UK Jetting - Help!
6/27/2020 2:32pm Thanks all... appreciate you taking the time to reply. We'll get it on the stand tomorrow and start having a play... I'll feed back results. Si
SimonGreen Started a new thread YZ125 2016 UK Jetting - Help!
6/27/2020 7:58am Hi all, I could really do with some help with this as I'm going nuts. Bike has fresh top end and all to tolerance spec. We're running 98 RON non-ethanol fuel with 1:32 Maxima 927. I've done a leakdown and all looks fine and have completely checked the carb over. Bike is stock OEM and we are at 200m altitude...
This forum thread has 5 replies.
SimonGreen Added a reply to 2 stroke jetting
6/26/2020 8:44am Fantastic stuff Jag. I'll drop you a few quid via Paypal also.. the best content I've found to date on this often misunderstood and miscommunicated aspect of running a two stroke.. I must also add that the ethanol removal process is cool! I can still get ethanol free fuel at the mo but it's not going to stay that way...
SimonGreen Started a new thread CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/28/2020 11:25am Hi, Having taken a hiatus from my frustrating CR250 02 build I decided I'd grab a 125 to get me through the year and at least get a little riding in. Found a super clean, pretty much all original 03 CR125 going locally and grabbed it for a reasonable price. Looks low hours and was cared for. Intention was to...
This forum thread has 30 replies.
SimonGreen Added a comment about video Vital Tech Tip: Keeping Your 2-Stroke Alive
4/27/2020 3:23am
Great stuff. How about popping a video up on the importance of performing a leak-down test? Keep up the great work!
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SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/27/2020 1:51am Thanks mate. I'm going to grab another box and pop in the filters for sure. On the other points from a carb perspective I presume you mean PWK A/S? I purchased on of these some time ago, refurbed it and then went to pop it on only to realise that the 03 has a short carb and my PWK is...
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/24/2020 9:01am They look great. I'm sold and will space them like yours.. no point in popping these in and then blocking them with my legs 
SimonGreen Added a reply to CR125 03 Cylinder Head
4/24/2020 12:08am Thanks for the post. I'm looking for a head.
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/23/2020 2:53pm Thanks for the heads up! The Uni-filters look the ticket. I wonder if an 04-07 airbox would fit on an 03? I'd be tempted grab one as they're still available and then drill the old one and fit the filters. I'll defo grab a powerflow. Appreciate the post mate. Si
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/23/2020 10:41am Thanks fella. I've got an 05 airboot and mxbonz fix kit on it already but can't bring myself to drill holes in the airbox
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/22/2020 2:55pm Yep - been looking for while now.. If I can't find anything I'll have to grab a VHM and be done with it..
SimonGreen Started a new thread CR125 03 Cylinder Head
4/22/2020 1:36pm Anyone got one of these kicking around they don't need? Si
This forum thread has 2 replies.
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
4/22/2020 1:08pm Just realised that I’d forgotten to update this. Really pleased with how it came out in the end. Stuck some hours on it since completion and it’s sweet! Just grabbed a flat topped RM125 piston so next plan is to install this along with a modded cylinder head as per Gorr. All I need to do is find a used...
SimonGreen Added a reply to CR125 2003 - I'll just clean it up and grease the bearings build - NOT!!
7/25/2019 7:09am Been a while since the last update but been busy.. Engine rebuilt and ready to rock 'n' roll. Will be vapor honed at the end of the year when I rebuild the bottom end so I've just got to live with the fact it's not looking as pretty as I'd like. New cylinder but getting the power valves in a...