Messages

1

General Two Stroke Talk / oops.

« on: July 30, 2013, 05:17:43 AM »

Have v force reeds and a pro circuit pipe with shorty silencer. But that is the only mods. Looking for more mid to top. Even with the 14 tooth front sprocket it still has decent low end. But I'm definitely more of a mid range rider. From probably half to three quarters throttle range.

2

General Two Stroke Talk / oops.

« on: July 30, 2013, 01:46:46 AM »

Honestly I knew it was to long for a piston but not entirely sure for the crank. And I know being a fast guy doesn't make me a good mechanic but it does generally mean I know the basics of bike set up which was for some reason the response I got when I asked about motor mods. If I had a suspension question I would have asked it. The riding comment was simply saying I'm not new to mx in any way. Just still consider myself new to two strokes as I've only been riding one for a year and a half. I did start reading on a125 but that was years ago and I want doing very much of my own mechanic work back then.

3

General Two Stroke Talk / oops.

« on: July 29, 2013, 08:03:50 AM »

x2 on what everyone else said. And I made the 125 assumption by teh size of the piston relative to your hands. So i'm now thinking you have mammoth hands. Rule of thumb for replacing pistons is every second ring(s) change. Piston and rings, rings, piston and rings, rings, piston and rings, rings etc.

And for the record I am slightly larger than the average mxer but not much. 6 foot tall and #200lbs or 1.8 meters and 91 kg for those on the metric system. He's is a pic of me next to my bike on a lift we had just bought

4

General Two Stroke Talk / oops.

« on: July 29, 2013, 07:57:24 AM »

Like I said not trying to be rude just making a point. It bothers me when I ask a question and get an answer unrelated to what I asked lol. My gf does that lol. Anyways here is a few pictures for reference to me on the kx
 


I'm not the fastest guy around for sure but I do know how to handle a dirtbike a little lol.

5

General Two Stroke Talk / oops.

« on: July 29, 2013, 07:37:23 AM »

Suspension is sprung for my weight and gold valved. Also regeared the bike with a14 tooth front sprocket to smooth the bike out. Not to be rude but I've been doing this pretty successfully for a couple years. I know the basic steps but I'm looking into a few mods. I've always ridden stock bikes and raced 4 strokes so I'm asking where and what to do that's two stroke specific that's all. Thanks

6

General Two Stroke Talk / oops.

« on: July 29, 2013, 05:01:49 AM »

Did all this last year. Thread here
http://twostrokemotocross.com/forum/general-two-stroke-talk/the-rebuild/msg47335/#msg47335
But it has since had a year and a half of hard riding on it and I kinda got curious how long it was going to last.
I'm no newb but I've never built a mood bike before. I had am uncle that went pro in flat track and mx in the 70s and he always made the comment "shift up". He always believed if you couldn't rode it locked throttle everywhere then there was no reason to mod the bike and for the most part I agree. But since it's blown I'm going to look into upgrading. But for what is worth I'm 23 racing the b class with a 9 year old basically stock 250 and have put a couple 16 year old kids with daddy's money and $20, 000 dollar bikes to shame. But I'm kinda wanting to build the bike a little different this time.

7

General Two Stroke Talk / oops.

« on: July 29, 2013, 02:17:34 AM »

Now that the conversion debate has been solved it looks like I'm going to need to have the cylinder replated. My question is who do yall suggest for port work. I've always heard Eric Gore but recently heard bad things and was wondering who else was around.

8

General Two Stroke Talk / oops.

« on: July 27, 2013, 11:10:29 PM »

Yes it's in inches that's the " behind the number. But it was .178 mm I believe

9

General Two Stroke Talk / oops.

« on: July 27, 2013, 10:43:47 PM »

Yeah I was never going to keep that crank I don't know how that got brought up. This is the second rebuilds I've done on this bike. Last time was March last year. I was just curious if that was average for a crank. Im a mid pack to front of the pack b rider at the National level so I'm no slouch on the bike it has been ridden hard nearly weekend for a year and a half. Id say 25 races which is Saturday practice Sunday race with 20 plus practices on top of that. I'm probably going to stick with the hot rods crank since it worked before. Just curious of yalls thoughts. Also how tight should the clearance between the piston and cylinder? Mine seems smooth but I can fit a .007" feller gauge and don't have a service Manual for it.

10

General Two Stroke Talk / oops.

« on: July 27, 2013, 02:18:16 PM »

Its a 250 and yall will think I'm crazy but the piston had over 100 as well. The crank is likely just jammed but while I'm there to clean it out I might as well replace it.

11

General Two Stroke Talk / oops.

« on: July 27, 2013, 06:05:46 AM »

Well I went riding today. made about three sorry practices before the bike gave up. Opened it up and found this

Crank is locked up but the cylinder and had are fine. I found no damage other than the piston and crank. My question is how long should a crank last? I would guess this one hat 100 hours on it pretty easily. Curious if that sounds about average or not. About to buy a new crank and need to know if I should stick with hot rods or go wiesco or oem. Any thoughts?

12

General Two Stroke Talk / cr125 jetting questions

« on: June 12, 2013, 03:57:12 PM »

I assume there is a worth while carb upgrade?

13

General Two Stroke Talk / cr125 jetting questions

« on: June 12, 2013, 03:18:14 PM »

Not my bike. I ride a kx250. This is somebody around the corner from me. Im 90 percent sure it's the stock carb whatever it came with.

14

General Two Stroke Talk / cr125 jetting questions

« on: June 12, 2013, 01:25:44 AM »

Thanks that's what I needed to know.

15

General Two Stroke Talk / cr125 jetting questions

« on: June 11, 2013, 04:02:26 PM »

A friend of mine has an 01 cr 125 that has a mid range bog. They are relatively new to the sport so I'm pretty sure the jetting is off. Anyways can somebody give me some base jetting to run on an 01 cr125 fmf exhaust roughly 250-300' above sea level. Really most concerned with the pilot jet but would like to just go ahead and get a full base reading.