Blaster took a dump on me

[jostith]

I am not only new to this forum but new to my blaster. I got it over the weekend. I've been riding it slowly just to make sure that I am used to it and all. It doesn't have rear brakes but from what I am gathering from this site already, that doesn't really matter unless they are converted. They aren't. But after riding it around the yard and in the woods a little bit I decided to take it up to the garage and go in. the garage is just up the road so I wanted to see how quick it was. I got to 5th and this is where it took the dump on me, it started sputtering and just died. I pulled it over and took a look at it. The cooling fins where smoking where some oil or something (i'll explain in a second) had landed on it and was smoking off. Then the steering rod or whatever you would like to call it, I will call it a steering column, was just covered in a black liquid that I know was not water mixed with anything. Didn't take it through any puddles. But at the same time I don't see how in the hell oil could get there... there shouldn't be anything like that up there. And to me it seems like this should be completely unrelated to the next problem if it did come from the steering. The engine died completely and all but I did try and start it again and instead of being locked up it cranked up first kick. I was stunned but then it started to rev. And it just kept going. So I thought the throttle was stuck, so to test this I gently eased off of the clutch into first ready to rain in the beast should it take off but the damn thing died. Why in the world would it do that? It also drove around fine and didn't rev high while I was just testing it around the drive way and shifting. What could this be? I just got it and would really prefer that it not be crap just yet. I've not got a lot of experience with a wrench on something running but I have tinkered around to try and learn more about these things on a CR125. Never did run though. Hoping you guys can help me save a ton of cash.

I'd like to know what that was on the steering column so I either know what to refill or know what to fix. Also how in the heck can I fix the revving thing? Also the kill switch doesn't work so I have been just killing it in first, is there an easier way to do this and does that hurt it? Is there an easy way to fix that kill switch? And the kill switch works sometimes but rarely. Also what fluids would you guys recommend for me to change them all, just yamaha stuff? (Gas and oil is mix myself, thankfully the other owner already blocked it)

Thanks guys.

 

[brandoz28]

ok, what you're seeing on the stem is oil that comes out with the exhaust. get out a 13mm socket and check the head studs, sounds like they have come loose and you have an air leak, that will also explain your uncontrolled reving problem. also check the nuts that hold the jug to the bottom end too. welcome to the forum man

 

[jostith]

Thanks man. I will check that and then post again later today. I appreciate at the help.

I'm glad that i found this forum. Seems like it is pretty cool. Thumper Talk is cool too but this is much more specialized and I like the people better.

 

[super noober]

sounds like you may have a airleak, check your intake boot for cracks and tightness. i wouldnt try and run it untill you get it figured out, also do you have a compression gauge?

 

[yb200]

yes the oil is from the exhaust.....you may need a new gasket in there......as for the reving...you have an airleak somewhere......and the way it sounds you seized the motor if i was you id take the head off and check the cylinder for scoring....

 

[jostith]

I have a compression tester that I made for my CR125 that works. I am not sure if it will work in the blaster because I can't remember the carb size. I will check it. The tester works great.

Are you sure that I could've seized it up? It runs and everything so that just doesn't seem likely to me but then again I don't know a lot about that. It also drives fine and doesn't make sounds it didn't before. Everything is fine except the revving. I haven't made it up to the garage yet, so all these suggestions are very helpful. Thank you all.

Also because the top end has been redone I would hope that the guy had already put new gaskets in. I will be pretty angry if he did not. Even a newbie like me knows to replace all gaskets when redoing the top end. I suppose that it is possible that I fried them. It runs hotter when leaking air, correct? I'd really like to know all that I can learn from this. Such as how to prevent and fix it and what all is actually happening? Should I post pictures of it?

 

[brandoz28]

did it kick right over after it died? if it did it wasn't seized

 

[jostith]

Yeah it did. I tried it immediately but when it started revving high I just turned it off (killswitch worked, though I don't know why) and wheeled it home.

 

[brandoz28]

like i said check the head try to tighten the nuts (20 ft/lbs if you have a torque wrench)

 

[jostith]

Alright I went around the head to check if they were tight and there was one that was not as tight as the others but still pretty ok. I'll get the torque wrench out and make sure it is right though. Also down by where the exhaust connects it was a loose, not real loose once again but it also looks like where the sprayed from. If I were sitting on the bike the oil spray was on the left side. I pulled it off and I'm not sure if it is supposed to be like this but there is a seal of what looks like silicon or some other sealer around the pipe. It is an FMF Fatty Gold Series if that helps. I looked inside the pipe there was a little bit of a mess on the left side once again so I am going to go to autozone and get some high temp sealer thing, I'll ask for help though. I'll make sure it is on nice and snug, suggested torque though? Anyone know it? Also is this right?

 

[doc_speeder]

There shouldn't be THAT much oil coming out the exhaust. How much is it smoking? Could be sucking gearbox oil if the clutch side crank seal is gone.

Also, I see a trend on this board. People buy stuff that is recently rebuilt and then it blows up. Recently rebuilt is code for "it's buggered and I wanted to sell it so I patched it up enough to sell it, and dumped it quick as I could". I try to buy stuff (including vehicles) that work properly, but have NEVER been opened up, at least not recently. They might be a bit tired out, but they're not broken. Then I rebuild them myself so I know it's done right.

 

[xjma]

I would pull the pipe off, clean it up a bit and then get in on there nice and snug. Is there a spring holding the pipe to the flange?? There is a separate pipe and flange on the FMF.

You said that you were putting around for a while, well that could have lead to a buildup of oil, and then when you started revving up it tried to get rid of that oil....it might be what happened, maybe not?

 

[jostith]

I think it is fixed. Brandoz28 it ended up being that loose nut on the top. But it could've been the exhaust as well. I cleaned it pretty well and made sure that the pieces fit together more smoothly this time so that they would get a better seal. I think it worked because the revving isn't going higher and higher. It just revs a little funny cold but that is to be expected when warming up. It is fine after a second. I am still taking it out to my brother and laws tomorrow to have him take a quite peak at it. Thanks for all the help guys. I tried to give you all good rep but I don't think it let me. I will try again later. I've got more questions that I will post up later.

Interesting thought speeder. I will talk to my brother and law about that and see. Xjma I think that you are probably right. I wasn't going to fast but I was trying to rev it a little higher so that it wouldn't happen. I only really had it in 3rd or 4th gear until the road. I cleaned it really well though and made sure it was snug like you said. Seems to be alright now. I opened it up a little just to be sure and it was fine. I got off it pretty quick but seems alright. Thanks for all the help fellas once again.

 

[Blaster200boy]

Open up that carb, clean it and make sure your jet isn't a 230 or 240....i'd say a 280 would work....for proper jetting, buy jets 260-270-280-290....then buy some B8ES spark plugs and do some plug chops...

 

[Cranman]

if your throttle hung open the tors could have killed the spark and that's why it cut off.

I don't think a loose head bolt made what you described happen. I guess if the exhaust ws loose at the head that explains the oil on the steering shaft.

 

[jostith]

I don't think that the head was loose enough to make much of a difference. It didn't tighten much. The exhaust was loose though and on a little funny. I plan on cleaning up the carb though. Just don't have enough time over my spring break. I'll probably take it with me and clean it up when I don't have homework. I'll check the jets when I have it apart.