Oh God, here I go..

[Brauap]

Finally got the compression test done, and my nightmare came ture. It was 75lbs out of the normal 100-125lbs. Of course this means REBUILD!!! Thinking about WISCO 10:1 416 w/ CRF450 timing chain. But would I need new studs?

Just wanted to share the great news you ya'll! :rolleyes:

Later.

[NacsMXer]

That sucks, sorry to hear the bad news.

At 10:1 compression you're not much higher than the stock 9:1 compression....so studs aren't absolutely necessary. It would be added insurance if you did though, it's up to you.

[hornetgod13]

For your desired set up, heavy duty studs won't be needed.

[lorenjr83]

That doesnt sound like great news to me!

Stock studs will be fine for 10:1

[Dew2008]

Same thing happen to me yesterday. I had the 440 12.5:1 I think I am gonna go 426 10:1. I already have the HD studs though...Good luck man its def a fun job

[F-16Guy]

Just out of curiosity, did you keep the throttle wide open while you were cranking, and did you let it crank for at least a few seconds? If you do need a rebuild, I personally would probably get a 10.8:1 JE piston (I'm assuming you want to stay on pump gas), a Stage 2 HotCams cam, and if you can swing it, do the studs. You may be okay with the stock studs, but they'll be getting removed and re-installed for the bore, so you never know if the threads in the cylinder will hold after being disturbed. In my opinion, HD studs are the best money you can spend to make sure your build is reliable. If you can't do the studs for whatever reason, make sure that the stock ones are re-installed with some kind of a heavy duty locking compound; I believe GT Thunder uses sleeve retaining compound.

[XXXRACER165]

Whats with all the rebuilds people are doing latley? I've had my 440EX in the family for years without a major rebuild. Must be the owners lacking on periodic maintenance :blah:

J/K:D

[Dew2008]

Actually your 100% correct the PO did not keep oil in it as he should. I could tell by the burnt oil on the rod. What a jerk off.

[F-16Guy]

Originally posted by XXXRACER165
Whats with all the rebuilds people are doing latley? I've had my 440EX in the family for years without a major rebuild. Must be the owners lacking on periodic maintenance :blah:

J/K:D
Yeah, no kidding. I've had my 416 in for almost five years with no problems. I throw some oil and a filter at it once in a while, and that's about it. I don't even use expensive oil, just regular Castrol or any other decent brand that I can grab at the nearest Walmart. You can keep that $8 a quart designer crap!

[hornetgod13]

Originally posted by my88r
its possible you just didn't do the compression test correctly.

Did you hear what he did to his engine? He's lucky it even registers 75psi.

[Honda#4]

Did you hear what he did to his engine? He's lucky it even registers 75psi.

Point is he's gonna be doing alot of learning from his mess.

[my88r]

Originally posted by hornetgod13
Did you hear what he did to his engine? He's lucky it even registers 75psi.

i remember now. he will learn someday:rolleyes:

[Chino886]

Originally posted by my88r
i remember now. he will learn someday:rolleyes:

What did he do?

[coryatver]

airbox boot came of the carb and kept riding it like that for like 3 hours

[my88r]

Originally posted by coryatver
airbox boot came of the carb and kept riding it like that for like 3 hours

yep, in very muddy wet conditions.:scary:

[tri5ron]

original thread to a very expensive lesson in maintaince.
go see the pics....
http://www.exriders.com/vbb/showthread.php?s=&threadid=345576

[my88r]

Originally posted by tri5ron
original thread to a very expensive lesson in maintaince.
go see the pics....
http://www.exriders.com/vbb/showthread.php?s=&threadid=345576

very few quads ive seen. with that amount of mud on them:p

[Brauap]

Hey guys!

Here is how I did the comp. test:

Changed oil w/ oil filter
let it run for about 3-4 minutes
take plug out
put checker in
turned er' over
result: 75psi

was I suppose to mess w. the throttle?


Also here is my plan. I am not going to attemp a rebuild for 2 months. I know I messed it up, but atleast I have something running. I have a WV trip comming up and I dont want to miss it. A huge family reunion, and people I want to meet. And about 2 weeks after that, Rumble on the Ridge, again. After those to trips I will rebuild it. I changes it with fresh new oil and filter, so I figured I am just going to ride it till she blows. But in the mean time, I have been looking for a 2 stroke 2 wheeler, and there is a guy down the street with an 02 YZ125 and he wants 1g for it, and thats a deal no man with brains could pass up.. (don't bother bringing up that brain thing.. seriously, don't.) So, I will have that but I am going to brake every bone in my body riding that beast. My feet barly touch the ground, screams, I am not use to 2 wheel, and most of all, I am not even use to a 2 stoke. So there is my plan..

[250x_kyle]

you will eat it so many times on a bike.. i used to ride bikes plan on picking up a bike this summer for a trail machine. if you have never owned a bike you will probably hurt urself on a 125. from the sound of the things that u have done. i seriously wouldnt recomend it.

[400ex28]

So it still runs even?

[F-16Guy]

Originally posted by Brauap
...was I suppose to mess w. the throttle?

Yeah, you need to hold it wide open while it's cranking to get an acurate reading. Try it again and see what you get. You can also tell for sure if your rings are shot by squirting a small amount of lightweight oil in the spark plug hole and checking the compression again. If the reading goes way up, then your rings are probably trashed.

[Hondamaster5505]

Originally posted by Brauap
Hey guys!

Here is how I did the comp. test:

Changed oil w/ oil filter
let it run for about 3-4 minutes
take plug out
put checker in
turned er' over
result: 75psi

was I suppose to mess w. the throttle?


Also here is my plan. I am not going to attemp a rebuild for 2 months. I know I messed it up, but atleast I have something running. I have a WV trip comming up and I dont want to miss it. A huge family reunion, and people I want to meet. And about 2 weeks after that, Rumble on the Ridge, again. After those to trips I will rebuild it. I changes it with fresh new oil and filter, so I figured I am just going to ride it till she blows. But in the mean time, I have been looking for a 2 stroke 2 wheeler, and there is a guy down the street with an 02 YZ125 and he wants 1g for it, and thats a deal no man with brains could pass up.. (don't bother bringing up that brain thing.. seriously, don't.) So, I will have that but I am going to brake every bone in my body riding that beast. My feet barly touch the ground, screams, I am not use to 2 wheel, and most of all, I am not even use to a 2 stoke. So there is my plan..

Im sorry, but that's the stupidest thing I heard.

One value you have to learn, patience. That's really stupid to run a whole West Virginia trip on that motor the way it is. You can end up with worse problems or failures in the future.

While it may run another year the way it is, I still wouldn't take a chance. God forbid a ring cracks and gets metal particles in your crank. Or, something happens and you screw up your entire bottom end. I don't think you want to explore the wonders of rebuilding an entire engine.

What I would do, is see if any family has an extra ATV or Dirtbike for you to borrow. Either that, or there are lot's of older dirtbikes out there in the $400-$1000 range out there.

Bikes I recomend for you:
80 2-stroke
85 2-stroke
XR200
TTR-125L
DRZ-125L
KLX-125L
CRF150F

While the 125 fourstrokes may be on the slow side, you have never ridden a dirtbike before. They are equivalent to lets say a 300ex as far as acceleration.
CRF150R's are really high-strung rev happy 20hp race bikes. They like to be screamed. For you, i think the 150F is a better choice until you get better on bikes.

[Brauap]

No, I have ridden my buddies TTR125 (SLUG!)

Also, I don't care how many times I biff, I will only get tougher and braver.

Yes. It still runs..

I will go out right now and do the test again.. WOT

[250x_kyle]

Originally posted by Brauap
No, I have ridden my buddies TTR125 (SLUG!)

Also, I don't care how many times I biff, I will only get tougher and braver.

Yes. It still runs..

I will go out right now and do the test again.. WOT

thats the way my buddy is on a bike he also spent last weekend in the hospital because of that. he went down and broke 2 ribs and punctured a lung. when he wrecked he had all his racing gear on and his chest protector was broken.

[TRXRacer1]

Originally posted by Brauap

I will go out right now and do the test again.. WOT Did you retest yet?

Also........ I've broke my back, took enough skin off my left arm to see the bone at my elbow, cracked a helmet and bruised and scraped about everything else on my body so I get the "go to" attitude but I would consider all my major accidents pretty stupid and avoidable. On the plus side I'm alive, I still run like a mad man and haven't had a major biff in 8 years. On a double plus I got back with an old girlfriend when I broke my back and ended up marrying her. Life's funny like that but we still don't need to find out how much impact a helmet can take before it cracks while mounted on our heads!

As far as the 2 wheeler goes........ don't buy another machine until you get your current one running. Rebuilding a 400ex top end is pretty cheap and fairly easy. Borrow a machine for the reunion if needed but save your money for your ex.

[atvhonda-rider]

I'm with the other guys as well.. borrow a machine and wait. REBUILD YOUR BIKE! Don't be lazy and impatient it will always cost you more in the long run. I'd rather spend $300-600 rebuilding the top end then a thousands of dollar nightmare in the whole engine.. take good maintenence of your bike... you're lucky your on a Honda or you'd never be where you're at right now..

[rcatvrider]

I've ridden 3 dirtbikes and feel like I'm going to kill myself on all of them. I would love to get better at riding them though seeing they're the only legal motor vehicle on trails in ct.

[my88r]

Originally posted by Brauap
I have been looking for a 2 stroke 2 wheeler, and there is a guy down the street with an 02 YZ125 and he wants 1g for it, and thats a deal no man with brains could pass up..


i bet theres something wrong with it then. does it have a title??

[tri5ron]

Brauap,

Bad judgement, and lack of paitence, is what got your quad in it current condition.

Dont make the same mistakes twice, and end up with your body/health in that same condition.
You seem like a pretty good guy, just a little inexperienced.

Sometimes it is better to focus a little more on the Tommorows, than it is to focus on just the Todays.

Try to learn from previous experiences/mistakes,
and your body, (and wallet), will thank you.

Hang in there.

[TheNewn]

Originally posted by tri5ron
Brauap,

Bad judgement, and lack of paitence, is what got your quad in it current condition.

Dont make the same mistakes twice, and end up with your body/health in that same condition.
You seem like a pretty good guy, just a little inexperienced.

Sometimes it is better to focus a little more on the Tommorows, than it is to focus on just the Todays.

Try to learn from previous experiences/mistakes,
and your body, (and wallet), will thank you.

Hang in there.


Listen to this guy. Seriously.

[Brauap]

....Whoops!.....

I haven't been on in 2 weeks, and therefore I haven't read any of the threads, but I just bought my 2002 YZ125. No, it didn't come with a title, but a bill of sale. I am inlove with it, and it HAULS!!!! :devil:

No, I havn't done a new test, I just kept forgetting. But, I have been running it, and it still screams! I don't notice any change atall in preformace! I think I just did the test wrong. But, even if I do redo the test, I can't rebuild it till' after I go to WV.

I have been upto 5th gear, fouled a plug, and have been introduced to the powerband alittle, and I haven't biffed yet! (knocking on wood!!!!!)

I registered at 85PSI today i am testing again tomorrow to check it for assurance i'm going with a Wiseco 10:1 and if it needs to be bored 406cc.

[BSchorr]

How do I do a compression test? I think i should give my 440 one.

[coryatver]

you guys doing the compression test, the stock cam has automatic decompression built in im sure that has an effect on your results.

[Brauap]

I finally re did the the comp test, and it is 123-124 psi! But, it turns out, I need to rebuild the YZ, but it will only cost about half as much as the 400.

[UNBROKEN]

^ if its to good to be true it probaly is , how the rest of the bike like fork seals, rear shock, chain and sprockets.. and hopefully ure cylender wont need to be re niscal plated becuz that will set u back atleast another 200 bucks

[Hondamaster5505]

Originally posted by Brauap
I finally re did the the comp test, and it is 123-124 psi! But, it turns out, I need to rebuild the YZ, but it will only cost about half as much as the 400.

Ugh...:rolleyes:

This is where no patience hurts you. You were so eiger to go riding, you wouldn't care what condition your quad is in. Now, because of your impatience, your quad end up being fine, and your stuck with a dirtbike that will probably cost well over $200 in a rebuild alone. Nikasil sucks. Plus, im sure there might be something else wrong.

LEARN PATIENCE. Without it, you'll just keep messing up and doing things you shouldn't which will in turn affect the other stuff. Hopefully you'll learn someday. I already did.

[Hondamaster5505]

Originally posted by Brauap
I finally re did the the comp test, and it is 123-124 psi! But, it turns out, I need to rebuild the YZ, but it will only cost about half as much as the 400.

And also, are you sure it need's a rebuild? If your going by compression, then 2-strokes are usually always lower compression the four-strokes.

[Brauap]

Here is the jug.. <object width="425" height="355"><param name="movie" value="http://www.youtube.com/v/ERG_Y7zrdqg&hl=en"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/ERG_Y7zrdqg&hl=en" type="application/x-shockwave-flash" wmode="transparent" width="425" height="355"></embed></object>

I don't know much about 2 strokes... also, my mom is real good friends with an X-Dirtbike wrench, and his brother currently is in that business... and he will give us a good deal.

But tell me what you think..

There are brand new brake pads, looks like new sprokets, has Excell (or something like that) rims front and back, brand new tires front and back.. but I needs a new airfilter. Also, the back shock wiggles back n forth, needs new bushings?


Tell me what you think I'll have to do.

Thanks!

[AtvMxRider]

Originally posted by Brauap

Tell me what you think I'll have to do.

Thanks!


Get a good running start and run it along with yourself off of a cliff:ermm:

[UNBROKEN]

to be honest that video was pointless u need good pictures with a CAMERA lol

[NacsMXer]

Originally posted by UNBROKEN
to be honest that video was pointless u need good pictures with a CAMERA lol

lol I thought the same thing...I couldn't make out a single detail. Get some macro shots with a camera, I agree. The loss of quality through Youtube doesn't help videos though.

[Brauap]

So, just post the pictures up? I have all of the pictures, and if I download them to photobucket, they will be very large. Shoud I do that?

[Brauap]

http://i197.photobucket.com/albums/aa283/braaup/100_1990.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1991.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1992.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1993.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1994.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1995.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1996.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1997.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1998.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_1999.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2001.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2002.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2003.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2005.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2006.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2007.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2008.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2009.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2010.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2014.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2012.jpg

http://i197.photobucket.com/albums/aa283/braaup/100_2011.jpg

HOPE THESE WHERE BETTER!!!! I FORGOT TO TELL YOU, THERE WAS SOME OIL ON THE INSIDE WALL, JUST TO TELL YOU THAT IS WHAT THAT BLACK STUFF WAS! THANKS!;)

[my88r]

its hard to tell how the bore is from pics. is it on the stock bore.

[Brauap]

uuuuurghhhhh.....:confused:

I duunoo.. :eek:

[my88r]

Originally posted by Brauap
uuuuurghhhhh.....:confused:

I duunoo.. :eek:

take it to someone and have them mesure it. then you need to get a pistion. thats the next size bigger then the bore now. then it needs to be bored and honed. i prefer pro-x pistions. moose makes a nice complete gasket kit.

[Brauap]

I am thinking about getting something like this:

Buy new Pistion--70ish bucks
Buy new gaskets--20ish bucks
Buy new O-Rings--?? bucks
Buy used cylinder-- 150ish bucks

The reason I am thinking about getting this it because it would end up cheeper than boring out and re-niciceling it...


Go to www.ebay.com
highlight this: 220231923702
Copy it
Paste it in the search box on eBay

[my88r]

post this up in the trx250r section colton. they will be able to help you more.

[Brauap]

I would, but would they get P.O'ed?

[my88r]

no, man few of them have bikes to. i posted about my ktm. with no problems.:)

[tri5ron]

Colton,
In all of the pics and video,
The trees, grass, sky ,and van look pretty clear, and focused.

I'm fairly confident that none of them need to be re-planted any time soon.

But I dont understand why you took all the pics of them through a fuzzy looking tube???

[Brauap]

ha ha ha. :rolleyes:

Thats the best that the camra will do.. :(

[440challenger]

that cylinder is destroyed. Looks like its time for a recoat.
Powerseal does nice work. about $200 though