Question about 1992 Suzuki VX 800

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Leaking upper valve on a 1992 VX800 how to fix Help please

Ok Ive been threw this bike pretty thoroughly and have figure out that the rear cylinder has a oil leak...I go threw about a quart every other week or so and it smokes when warming her up and when I throttle up...then after a few miles it clears up ...Now I thought it was just worn out rings and even seen it in suggestions....that may be part of my problem but it cant be the main leak...because when she sits for more than 10 20 minutes and I fire it back up it smokes a lil and clears up. So my diagnosis is a valve or seal leak in the head . Can any experienced motor head that's dealt with this help me if there's an easier fix than tearing down my rear cylinder head ? Please help she's my every day rider and mode of transpo

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  • Suzuki Master
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Hi, Corey you want the cold hard facts, your bike is 25 years old and your top end is worn out and needs to be rebuilt end of story. For more information about your question and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Suzuki GS500 Top End Rebuild Part 1 of 4
1990 1993 Suzuki VX800 Workshop Manual Repair Manual Service Manual... $10 cheap
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/uncategorized-suzuki-owners-manuals
Suzuki VX 800 1992

Posted on Mar 23, 2017

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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roadrunning1
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SOURCE: oil leak from the front of the motor

Its funny you should mention this but yes, I had its bigger brother the GS 850 G , same problem, Apparently, in my situation I did the same thing and went to the shop and let those butchers make it worse !!!, the way i found my leak was by washing the motor with a grease and oil cleaner , strayed the whole motor and wash it all off totally, then I turn her on and let her get to operating temp went for a few mile and came back and checked it, for me it was the head gasket   the guys put on and i forced them to do it again,  I found out later that it was common with the suzi's of that model and ended up doing it myself, I used the original gasket and used a compound called gasket goo and it never leaked through out the 8 years i had it . But before you do anything , surly they gave you warrant y on the work so take it back and demand they do it properly.
Cheers and ride safe

Posted on May 18, 2009

polarcycle
  • 1392 Answers

SOURCE: LEAKING FUEL

You need to get some new float needles, and have the carbs cleaned and the float heights set correctly.

Posted on May 30, 2009

  • 311 Answers

SOURCE: LEAKING OVERFLOW PROBLIM

it sounds to me like the carb float levels are out of adjustment and it is overfilling the bowls,or,the needle valve seats are worn and leaking,which will allow fuel to continue filling the bowls even though it looks like they are closed,remove the carbs from the bike,remove the bowls,turn the cabs upside down close the floats(push them right to the top,this simulates full bowls)then blow throgh the fuel inlet pipe,if you can hear air escaping from around the seats they are faulty,also check that the seats themselves are tight in the carb body,i dont know why but gsxr carbs seem to shake the valve seats loose..hope this helps

Posted on Jul 04, 2009

  • 921 Answers

SOURCE: 99 GSX600F idles badly, belches smoke

i think your right!! take your drain plug off and drain some oil out....look at it condition does it have small bubbles in it does it smell funny or look like a milk shake?
if it does you probably have a cracked cylinder wall.

Posted on Sep 16, 2009

  • 430 Answers

SOURCE: valve cover gasket

The rocker cover gaskets can be changed with the engine installed. There are some low profile tools available to make getting to some of the bolts easier.

Posted on Nov 30, 2009

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