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1987 lt250

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Old May 11, 2004 | 10:18 PM
  #11  
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Default 1987 lt250

i wondered about motor seals......

he is just trying to get it running.....disassemble,inspect,weld, rebuild over winter......

sure wish i got the original book with it for baseline setups......

recommendations for manual...
 
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Old May 11, 2004 | 10:24 PM
  #12  
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Default 1987 lt250

motor sounds good rolling over. no funny rod or bearing noises....

upgraded axle,newer holeshots, needs aligned something aweful(front steering link is bent)
 
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Old May 11, 2004 | 10:52 PM
  #13  
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Default 1987 lt250

by the way..what is the button on top off the clutch lever perch????
 
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Old May 11, 2004 | 11:07 PM
  #14  
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Default 1987 lt250

if you cleaned the carb take the flywheelcover off and start it . spray carb cleaner in the back of fly wheel where the crannk seal is it will bog out if bad seal. some people say starting fluid and it will rev higher (not spraying starter fluid on mine). i bet ya its a crank seal leaking or the boot to intake spray around thyem both. that should clue you in. since you already cleaned your carb lol . let us know by the way i ordered new boot and all for my 90 popped off the cover seal brand new was sitting on crank shaft tapped her in good fine now. oh yeah kill switch does that hit the gas she will turn off.
 
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Old May 12, 2004 | 01:16 AM
  #15  
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Default 1987 lt250

thanks for all the help.......

im pretty sure its a seal....it starts idles about 1/8 then it goes to pegged in about 10 seconds....do you think the full throttle deal will really shut it off....pulling plug cap(NOT)
hitting kill switch if it even works(NOT)

it gonna detonate soon if this dont stop..........

jets........i heard of 240 stock to 360 stock to running a 380 whos right???
 
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Old May 12, 2004 | 03:48 AM
  #16  
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Default 1987 lt250

Check the lower Jug gasket where the cylinder is bolted to the case. They will suck in extra air.
 
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Old May 12, 2004 | 07:03 AM
  #17  
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Default 1987 lt250

cwt,

How about a few pics of the old girl???

$250 seems like a no-brainer,,,good find
 
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Old May 12, 2004 | 09:33 AM
  #18  
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Default 1987 lt250

250?????????ill take 3 please hahaha
 
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Old May 12, 2004 | 09:52 AM
  #19  
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Default 1987 lt250

Remove the carb to air box boot so the inlet side of the carb is open. If it revs, cover the inlet with your hand. Unless you've got a really severe air leak, that should shut it down. Have some carb cleaner handy to see if you can find the leak and help slow down the acceleration.

360 is a very fat main but at idle you're running on the pilot and needle jets so that's not you're problem.

Stang,
I can't tell you what you're jetting should be. Read Eric Gorr's article and start doing plug chops.
 
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Old May 12, 2004 | 11:43 AM
  #20  
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Default 1987 lt250

http://www.eric-gorr.com/techarticles/carbtuning.html
 
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