Don't really know much about motorscikles...really haven't played with a 2 stroke...

I ended up with a 2000-ish (?) YZ125 a while back...it was in pretty rough shape but I spent a weekend with it and it and it seems to run great now...

I'm confident I can get it tagged and think I've found a light stator for it...

What kind of maintenance schedule am I looking at trying to daily drive this thing through the city for about a 10 mile round trip 3 to 5 times a week?

No, I don't mind carrying a bottle of oil around in my bag...

It will suck ...... the top crusing speed is only like 40mph
I've ridden hundreds of street miles on 2stroke dirt bikes, after the thrill wears out its way to buzzy

If there are no problems getting it tagged, I would gear taller and run SM tires and wheels. It would be a blast.

I own an 03 YZ125 for moto duty, change trans oil at ~15hrs, new piston and grease the linkage and stem once a year and youre good to go. Ive ridden mine alot farther than 20 miles on a single tank.

You don't want to. Get a 4 stroke, you'll be happier. Keep the YZ for offroad. If you put tires on it that will even try to last on the road they won't hook up in the dirt, the powerband is too harsh.

Yeah...I'm pretty sure I do want to....:shaking:...

I know how to regear a bike and I don't take it offroad as is now really. Just as a pit bike sometimes. And if I wanted to buy another bike I would, and not ask this question...but I have this bike already.

Just asking about maintenance advice. Was just wondering if I'm gonna half to rebuild the whole thing every six months...

If that's the case and you are sure you want to, alright then.

Maintenance wise, you're going to have to re-build it more than every 6 months. When I raced my 125 I went through at least 2 or 3 top ends a summer, and I know people who were worse than that. Suzuki recommends a new top end ever 10 hours of operation for their 125's if I remember right. A friend of mine changed the ring about ever 3 weeks, new piston every other ring change when he had his 125. He rides a 250F four stroke now, re-builds it every winter. Big differance. Also you may or may not have problems fouling the plug or overheating problems if you ride through traffic in the summer. There's no fan on it.

I LOVE 2-strokes, but I would not ride one on the street with any need. I had a KX500 that was street legal and it would be fine to run to the gas station, but if I "had" to go somewhere that was my last choice of vehicles...imagine pushing a lawn mower 10-20 miles...

That being said if you accept the increased maintenance and keep in mind that you are riding a dirt bike on the street (no fan, etc) you will probably have a great time with it.

Watch out for getting tickets, its easy to forget that you have to obey street laws when you are on a bike that you can usually do whatever the hell you want on!!

Dane

god.... dd a yz125? first off, you cant even register it for the road becasue its a two stroke and was never intended for the road. the exhaust isnt DOT qualified. and the new stator alone to get a light on it is 200. plus no blinkers. amd the money you drop of road tires and rims. have you acctualy looked into if you can register a DOT illegal bike for 100% road duty?

i know my shit with the yz125. raced them for 5 years in hare scrambles. i didnt have to do as much engine maintence becasue you cant ride it flat out in the woods like you do on a moto track. but youll be running the bike close to its max at all times. like running your truck at 4500 the whole time you drive it. even if you could get a 15 on the front without having to modify the aluminum guide or the case, and if you could find lower than 47 for the rear, its still gonna suck. not to mention youll be doing motor work more often than the maintence schedual asks becasue your holding it at thoes rpms for miles. this is a pretty dumb idea. buy a moped

god.... dd a yz125? first off, you cant even register it for the road becasue its a two stroke and was never intended for the road. the exhaust isnt DOT qualified. and the new stator alone to get a light on it is 200. plus no blinkers. amd the money you drop of road tires and rims. have you acctualy looked into if you can register a DOT illegal bike for 100% road duty?

i know my shit with the yz125. raced them for 5 years in hare scrambles. i didnt have to do as much engine maintence becasue you cant ride it flat out in the woods like you do on a moto track. but youll be running the bike close to its max at all times. like running your truck at 4500 the whole time you drive it. even if you could get a 15 on the front without having to modify the aluminum guide or the case, and if you could find lower than 47 for the rear, its still gonna suck. not to mention youll be doing motor work more often than the maintence schedual asks becasue your holding it at thoes rpms for miles. this is a pretty dumb idea. buy a moped

Throw a tail/brake light and headlight on ANY bike in OK and go pick up a tag for it. Some states you CAN'T but a lot of them you can, in OK if it is 2005 or older then you don't even have to have signals.

Blah, blah, blah...bitch, bitch, bitch...whiny, whine... youll be doing motor work more often than the maintence schedual asks becasue your holding it at thoes rpms for miles. More bitching and whining...
Like what kind of motor work and how often?

Or was all that a long winded way of saying "I don't know the answer to your question, sir."







:flipoff2:

I can see where this is going, you know everything and you want someone to tell you that you're right. Go ahead, tell us how it works out for you.

You want the answer? I already said it. Plan on a top end once a month, complete re-build every 6. If you're lucky.

If that's the case and you are sure you want to, alright then.

Maintenance wise, you're going to have to re-build it more than every 6 months. When I raced my 125 I went through at least 2 or 3 top ends a summer, and I know people who were worse than that. Suzuki recommends a new top end ever 10 hours of operation for their 125's if I remember right. A friend of mine changed the ring about ever 3 weeks, new piston every other ring change when he had his 125. He rides a 250F four stroke now, re-builds it every winter. Big differance. Also you may or may not have problems fouling the plug or overheating problems if you ride through traffic in the summer. There's no fan on it.


Didn't even see your post until now. Exactly the info I was looking for. Thanks.

About fouling plugs...

Assuming you get it jetted and tuned right...shouldn't that not be an issue? ....as long as I don't ride 2000ft up a mountain...?

You will need to ride it on the street the way it was designed to be ridden offroad, and thats the tough part. Two strokes like to be revved out, if you are lugging it around town you will foul plugs more often...I think its an awesome idea, and even if its not give it a shot!!!

I have had more dumbass ideas in my life that people told me wouldnt work for some reason or another...sometimes they were right...and sometimes they were posting shit on the internet that they heard from their brothers best friends cousins fiancees nephew...

Dane

I've had bikes that never fouled a plug before, and I had a KX 125 that I couldn't get jetted right to save my ass. If you get it right you probably could do it.

Keep it on back roads and bomb through the gears til you are wfo in 6th, pull in the clutch and let it coast to 35ish, then wind it up again. I rode a YZ80 that I had ported and polished by Eric Gorr on a lot of back roads (40-50 mile days) and it was fine as long as you didn't expect it to run great at one rpm. Don't let it engine brake a lot and wind it hard then let it coast, I didn't have to put many plugs in that bike at all.

Throw a tail/brake light and headlight on ANY bike in OK and go pick up a tag for it. Some states you CAN'T but a lot of them you can, in OK if it is 2005 or older then you don't even have to have signals.

As long as you pick the right tag agent:evil:

I've read some horror stories from around the OKC area.

As long as you pick the right tag agent:evil:

I've read some horror stories from around the OKC area.

I guess technically you need a permanent/non-resettable speedometer/odometer as well.

I guess technically you need a permanent/non-resettable speedometer/odometer as well.

And 2 mirrors........................................... .

Only thing that got checked on mine was the VIN. No brakelight check, no headlight check, there were no mirrors on at the time (I only have one anyway) and they still issued the plate:laughing:

And 2 mirrors........................................... .

Only thing that got checked on mine was the VIN. No brakelight check, no headlight check, there were no mirrors on at the time (I only have one anyway) and they still issued the plate:laughing:

Was it because of the Law Enforcement discount?

Was it because of the Law Enforcement discount?

I really don't know because I don't know if the girl working at the place knew who I was at the time. I tend to keep a pretty low profile around town.

I really don't know because I don't know if the girl working at the place knew who I was at the time. I tend to keep a pretty low profile around town.

Did you get that shock charged yet? There is a pretty good chance I will be out your way for work, even though I will have little off time.

Did you get that shock charged yet? There is a pretty good chance I will be out your way for work, even though I will have little off time.

Yup. It's ready for a ride pretty much. The carb is still acting a little sketchy, but I don't think it's going to be a problem. I'm waiting on the boys from ADVRider to move the Phototag up into my area so I can move that bitch west a little bit:evil:

I think the real problem you will have is when running an extended time at higher rpms, you need fat jetting to keep it from seizing up, and keep it cool. Check out what desert racers / hare and hound riders use. Same said jetting is going to foul plugs when you sit at a stoplight idling for a few minutes several times a day.

As far as street legal goes, its different in every state and often depends on the DMV you go to, and who you get there. I couldn't get my XR650R plated in FL no matter what I did, but rode it anyways for several months and never even got a second glance from a cop. All I had was a headlight, taillight, and mirror.

If you don't put mirror's on it you will die.

I've ran two stokes on the street from a 100cc Hodaka road toad(yes it was real), all the way up to a GT750 Suzuki triple. The GT750 was also known as the Water buffalo since it was water cooled. Two strokes are fine on the street if jetted and geared right.

I drove 70 miles round trip everyday for ten years on two strokes. The main trick to keep them from fouling plugs is to make sure if you run it hard to run it a mile or two at a lower speed to burn the excess oil/fuel out of the cylinder before shutting it down.

The real down side is that offroad bikes are so small many cars aren't going to see you making more of a hazard (for you) than a bigger street bike.

http://motorbike-search-engine.co.uk/classic_bikes/YAMAHA-RD200-RD250.php
2 stroke road bike. I've ridden one and they are badass..

I ride my '09 300XCW to work about the same distance as you, plus it has about 12 harescrambles and at least a dozen trips to white rock(3 day trail trips). It has several thousand miles on it, all with the oe piston and rings. Hundreds of hours on the hour meter. It is just now showing a loss of power and needs a few kicks more than usual to start it. Its time for a top end.

The point is, unlike mentioned above, in some states you can get one tagged. You can ride it on the road. I ride on the Bridgestone knobbies all the time. In fact, in all those miles its only had two sets spooned on. I have 3 miles of 55mph highway then im in town. It does not like to run between 50 and 60mph(surges) so i keep it below or above that and it runs fine. Ive ridden dualsport rides on it with my big tank(6 gallons) and run 130 miles+ while filling other 2-strokes in the group with smaller tanks off my tank.

Just do it, when it gets weak, rebuild it. Its cheap(less than a hundred bucks) and itll take you an hour to do. You just cant beat 2-strokes, and youll love all the funny looks youll get when you ride it down main street.

btw- you wont foul plugs at highway speeds, or even city street speeds. just get the jetting close and find a premix ratio that keeps the plug clean.