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Trenton Barnett

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About Trenton Barnett

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    TT Newbie

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    Kentucky

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  1. Trenton Barnett

    Crf150r crankcase damage

    Yes the bike is gonna be flipped but I’ll mess around on it until it sells. I just got the cases together and everything went ok. I cleaned everything out best I could and got a new oil strainer and valve. I got a good used oem crank to put in it and it feels a whole lot better than the wiseco. It is also much quieter when spinning it. For the gasket I used one I got out of a kit, it was tusk brand. They had good reviews and seem like good quality but I’ll see if it holds up or not. The kit was around 60$ cheaper than an oem kit or vertex kit so I couldn’t pass it up. The only thing that I am unsure about though is now that the cases together and all the bolts are tightened, the crank has a little side to side movement in the cases. I don’t know if this is normal or not but I think I’m just gonna send it. I am on hold right now though until I get a torque wrench for important bolts like ones inside the cases and head bolts etc. I should have it ready to run here in about a week. Hopefully it fires right up and has no issues.
  2. Trenton Barnett

    Crf150r crankcase damage

    I will definitely keep up with how each bike holds up that sounds very interesting. You sound like you have a lot of experience with bike engines so if you have seen the pictures that I posted above do you think that the cases will be fine to use if I clean them up really well and get rid of any jagged edges or rough spots?
  3. Trenton Barnett

    Crf150r crankcase damage

    Ok I am halfway done with the razor blade and it hasn’t gouged the case at all that I can tell. It feels pretty smooth when I run my finger across it so I think it’ll be good
  4. Trenton Barnett

    Crf150r crankcase damage

    Ok. I’ll just sand all the sharp spots a little then go around with a razor blade and remove all the stuck on gasket. After that I’ll clean everything as best as I can. I’ll order everything I need to get the cases back together - a gasket, a crank, and a new oil valve thing cuz the old one is gummed up. All the bearings feel good so I’ll leave them in and I’ll mask them off so I don’t get stuff down in them. Also should I order some assembly lube to lube up the bearings or will I be fine with just engine oil? Does all of this sound good to you? I have some experience working on bikes but this is the first time I’ve ever been in the bottom end of one. I though what better to learn on though than something I payed 250$ for lol
  5. Trenton Barnett

    Crf150r crankcase damage

    Ok I’ll give it a try, it actually has a little gouge in the edge where the cases seal together. I think it is fine though because it was sealing fine. I never noticed it leaking any oil or anything. When I put them back together I might use a little gasket maker on top of the gasket to ensure that it doesn’t leak in that little spot. Would that be ok to do?
  6. Trenton Barnett

    Crf150r crankcase damage

    Ok I’m glad to hear that the cases are fine to use. If they weren’t I prolly would part the bike out. And the crank that was in it was a wiseco. It seems fine but I was gonna replace it anyways because of heard nothing but bad things about them. I can get a good used oem crank off of eBay for around 100$. I think I might go that route.
  7. Trenton Barnett

    Crf150r crankcase damage

    Yea I was gonna get some soft sand paper and try to make it smooth as I can without going into the case past where it is supposed to be. I hope it’ll be alright
  8. Trenton Barnett

    Crf150r crankcase damage

    No the crank is fine but I think this happened in the past with a different crank in the bike because there is no way the cases could be like that and the crank be fine. It is an aftermarket crank too. The gouges aren’t very deep but there is one little one that might be a 1/8 inch deep. And if I did run them I will clean them out very good and maybe try to sand it smooth where the damage is that way there isn’t any metal protruding out or anything
  9. Trenton Barnett

    Crf150r crankcase damage

    Yea that is a good point. I want to spend as little as possible on the bike though because I have intentions on reselling it. You don’t think the cases would be alright to run though? I have thought about it for a while and I don’t see why they wouldn’t be ok. Thanks for the reply
  10. Trenton Barnett

    Crf150r crankcase damage

    Hey guys I just bought a Crf150r that was locked up for 250$ lol. I got it completely tore down and the cases split. There was some damage with the piston and cylinder but nothing major. There was a bunch of nics in the underside of the piston like a bunch of metal got into the cylinder. Once I got the cylinder off though the crank spun very smoothly and freely and after splitting the cases nothing is damaged in the bottom end or missing that I know of. The only thing I am concerned about is on the inner part of the crankcase halves right in the middle all the way around where the crank goes, there is all kinds of scoring and nicks in the surface of the cases. It looks like it blew up in the past and the crank crashed into the walls around it and some kind of metal gouged it all up. I just need to know if the cases are able to be ran or not. I don’t see why they wouldn’t be able too because I don’t think it would affect anything but I don’t know much when it comes to engines lol. I just want to get someones opinion who knows what they are talking about before I put a lot of money and time into it just for it to blow up again. I’ll post some pics of it to help out and if u have any more questions about it just ask and I’ll reply quickly. Any help would be greatly appreciated. And also what do u think happened to it? I think it blew up initially and some random mechanic down the road rebuilt it and it blew up right away again. All the parts - piston, head, crank, etc. look like they have very little run time and the crank is aftermarket. I also do know that it got rained in which is why the kid that I bought it from said it was locked up. The cam was very rusty and the cylinder had a pool for water sitting in it.
  11. Trenton Barnett

    Crf150r inner crankcase damage! Help!

    So I recently bought a locked up Crf150r for 250$ that is in really rough shape. I got the bike completely tore down and be cases split and everything looks very new like it just got rebuilt. The only damage i found was the cylinder had a a nick at the top, the piston oil ring was damaged and the underside of the piston had a bunch of nicks and small gouges in it like something from the bottom end broke into a bunch of small pieces and went up into the cylinder. I split the cases though and all the bearings and gears and everything showed no signs of damage. It had a wiseco crank in it that also looked brand new. I think the reason it was locked up was something with the piston, cylinder cuz once I got those out the crank and everything spun very smoothly and freely. The only thing that I am concerned about and need help with though is on the inside of the crankcase halves where the crank goes, there is some damage right in the middle all the way around. It looks like the main bearing went at some point and the crank crashed into the walls surrounding it and scored it up. There is also lots of nicks and gouges but not too bad. I just need to know if it is ok to run the cases like that or if I’ll need new cases or to get them worked on. I wouldn’t think it would affect anything because it doesn’t come in contact with the crank or anything but I just wanted to get somebodies opinion on it who knows what they are talking about before I spend a bunch of money and time rebuilding it just to have it blow up again in the 1st hour. Any help will be greatly appreciate. I’ll try to figure out how to post some pics of it to help out.
  12. Trenton Barnett

    Crf150r compression??

    Hey guys I bought a 2013 crf150rb about a month ago. When I first got the bike it was really hard to kick over and had a ton of compression. I had to stand it up and jump down with all my weight to get it running, my dad even had trouble kicking it but I just assumed it was normal because the guy I bought it off of told me it has a high compression piston. Well it's been a month and I prolly put about 5 hours on it and now the compression has dropped a lot to the point where I can kick it over pretty easily which I thought was the way they were support to be. It still has compression but not near what it had before. I know these bikes have compression releaser things on the cam and I was told that it had a hot cam put in it so I figured the person who performed the job messed the compression release thing up causing it to have so much compression. Could that of happened and me riding it caused it too fix itself now having less compression or did I blow something in the topend? It still starts up and runs with plenty of power that's why I don't think it's a topend problem. I'm sure hoping it was the compression release. And could somebody please give me an idea of how hard they should be to kick over? Now after it lost compression I can push it down with my arm but barely, I have to use all my strength but I can easily kick it over but u have to do it fast to start it, is that normal or should it be a pain in the ass too start like before? Thanks and sorry for such a long post!
  13. Trenton Barnett

    Need help with cr85

    Thnx for the reply, I'm going to change the oil and the air filter before I ride it again and I'm gonna save up for a piston and will probably rebuild top end this winter. By the way I don't know really anything about bikes so I don't know what rings or reeds are but I will look that up later. Also will leaving old gas, say a week old mixture, harm your engine in anyway cause I've done that a couple of times?
  14. Trenton Barnett

    Need help with cr85

    Hey I just got an 06 cr85 and I don't know anything about 2 strokes. Can u guys give me some tips on how to keep it running good and what I need to do 2 keep it from seizing or blowing up? What are some signs that your bike is about to blow? I've noticed that it idles really high sometimes and when I'm riding I can feel air coming out of the pipe somewhere. It also is easier to start when it's cold, when it's hot you have to give it has to start it. Are any of these bad and need to be fixed ASAP? Also should I buy a stock Honda piston or a weisco one when I rebuild it this summer?
  15. Trenton Barnett

    Need help with cr85

    Cr85 2 stroke maintinence
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