Quantcast
Jump to content

2003 Yamaha Blaster; No idle and pouring out smoke


Dozer564

Recommended Posts

I bought a 2003 blaster off a friend knowing it needed work at first it wasnt idleing and reving out of control so we figured there was an air leak, we put a new gasket on the base of the cylinder and the head, but now it wont idle and is pouring out blue smoke. Ive messed around with the idle ajustment on the TORS system but it still wont idle, we also found that most of the wires are cut would that have any thing to do with the idle?

Link to comment
Share on other sites

If it is blue smoke then you r burning oil or to much of it. also. your plug could be fouling. is that think oil injection or mixed. i am pretty sure it is a 2 stroke is it not. also if your reeds ar damaged that will cause the same issue. you can change the plug and drain out the tank and put clean fuel in it. if it is oil injection then clean the oil system and reset the mixure rate.

Link to comment
Share on other sites

If you started getting the smoke after putting oil in the tranny, then you either have a leak in the case center gasket between the tranny and the crankcase, or you have leaky crank seals. Leaky crank bearing seals could also be where you were sucking in air. When you put oil in the tranny, the crankcase started sucking in oil that side instead of air. The crank seals can be changed without splitting the cases, but if the bearings are bad, the case halves need to be separated. Google 2 stroke leak down test. This is an important test to do on 2 stroke engines. For one, the performance of the engine is dependant on alternating pressure/vacuum in the crankcase. Secondly, a leak in the motor will allow the motor to suck in extra air and cause the motor to run lean, this can destroy a motor quickly. The cut wires are probably someones half assed attempt to override the TORS system. You might want to look into a proper TORS elimination kit.

Edited by DirtDemon
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Similar Forum Topics

    • By Arizona
      I recently bought a 87 TRX 250 not running of course, the owner had a brand new Key Switch on it.
      I think it is the wrong one or wrong wire colors as the colors dont match up with wiring diagram i downloaded for it. 
      anyone have a pic of their ign switch wires where they connect with the wire colors for that model? I ended up leaving the black/w stripe and
      green wire disconnected in order to hot wire it for other testing but would like to know as the colors dont match diagram. 


    • By Parham
      My starter seemed to be "dragging" for a few weeks.  I thought my battery was going bad.  Bought a new battery, charged it fully, and still no change.  Relay clicks and starter MIGHT, reluctantly, turn engine slowly one or two revolutions.  Somebody (Mech?) please point me in the right direction...what connections/wires have come loose?
    • By Werewolf
      Oil is getting in the air box from crankcase vent tube, I put the two hoses that go to the air box together then something started to smoke on the front of the engine. There is a filter? In the line I blew that out.
    • By mga
      I just saw a video on TikTok where some guy took the rear end off an ATV and bolted on a roto tiller in place of rear wheels. I wish i saved that video to post here....good thing it was 4 wheel drive...lol but, it seemed to work.
      I'm not sure how he made it bolt on to the drive....
    • By JohnnyB
      Greetings, 
      Have a 88 LT80 that been sitting for a couple years. Bought a new piston, cylinder and head. Installed these, rolled it over and it quickly locks up.  Took carb apart. It was full of what appears to be 2 cycle oil. Cleaned it, but keeps locking up and 2 cycle oil continues to seap from exhaust port.  When i installed new cylinder, I noticed crankcase was full of oil.  I'm now wondering if that oil is what's getting sucked up into cylinder.  Should there be no oil in crankcase?  If that the case, how is crank and rod lubricated?  Sorry, never worked on a 2 stroke. Thanks!
×
×
  • Create New...