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1981 Suzuki Gs 650L

  • Thread starter Thread starter lmrmllr89
  • Start date Start date
L

lmrmllr89

Guest
this is my second time back here. i recently had a 1979 gs425, sold that and wound up with this bike. unfortunatly i wound up with a bad deal:mad:.

i found a 1981 gs650 with 9700 miles on it great condition except the carbs needed cleaned (still ran just hesitated at 3k rpms), and the mufflers were rusted out. so i bought it and rode it to work the next day. upon arriving at work i found the left muffler was blowing oil out of it. upon further investigation i found the oil level was about 1/2-3/4 of a quart overfilled. so after draining it out it still puts white smoke out the left muffler:mad:.

so i guess i found what i will be doing over the next days, months,years(hopfully not years).

the plan is to tear down and rebuild the carbs and tear down the engine and replace the rings and valve stem seals. and of course replace all gaskets encountered along the way.

wish me luck as ill definitly be stretching some of my mechanical boundaries. lol
 
Left muffler, white smoke? Might be a leaking fuel valve diaphragm. The vacuum line runs into #2 carb, will smoke like h*ll if diaphragm is leaking. Check this first, easy fix. Best.
 
I'll look into that....thanx. but it still spits a little oil out the muffler at idle.......
Pics to come soon
 
Don't rip into so quick! get oil level right, plug petcock vac nipple on #2 carb, run on "pri" spot on petcock. Run it and see if it cleans itself up a bit- might take a while.
 
Yea I think that's what I'm going to do.....I'm gonna rebuild the carbs as well because they are dirty I do know that ...but then I'll run it a bit and see what happens.....

Here's a pic.....more to come

img20120423215114.jpg
 
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Remember, you needed to change the oil, not just drop the level. If gas has contaminated the oil, it will smoke for a long time- along with wearing out that plain bearing crank . There's a seperate drain for secondary drive cavity- look just behind gearshift lever.
Also, if you disconnect/plug vac hose and use "pri" , make sure you switch to "on' or "res" when bike is off.
 
Well finally got to work on the bike some the other day. Took the tank off ,took the seat off and removed the carbs.

IMG_20120505_144049.jpg


Took the carbs apart a little bit, looks pretty clean but am still planning on full tear down and dipping......

IMG_20120505_144209.jpg


Ordered and got Carb orings, float bowl gaskets, next order will be Carb boots.....but need to get money first:-)

Also found and bought a complete exhaust system in great shape from a member here for 70 bucks. Am very excited for it to arrive..........
 
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Yea. I was working with them. I was having issues with hosting sites and finally got it figured out....I recently got a tablet and I'm still trying to get things right on here.....sorry guys
 
May I make a simple suggestion that will make life a LOT easier in the future?

Replace all those screws with Allen head or hex head ones. A lot easier to work on them in the future.
 
The ones on the Carb boots? I ordered the Allen head bolt kit from cycle orings.com along with the oring kit.....thanx for the heads up though.....I'm still fighting with the screws that are in the boots now
 
^^^^^ Agreed.....

this might help

Caps M5X16 16pcs
M5 flat washer 16pcs

Bowl M5X16 16pcs
M5 lock washer 16pcs

Upper Rail M5X12 8pcs
Lower Rail M6X12 8pcs


Confirm sizes please, to make sure they are the same for your bike/carbs


.
 
OK. Will give that some serious thought. Was rolling the idea around but now will probly do it. Thanx for the specs GK.
 
just do it....it's only a few bucks, really, and will make it much easier if you ever have to take them apart again, even if you don't, they look better.....LOL

P1060838.jpg


P1060844.jpg


.
 
Well I ran a compression test tonight .....it was on a cold engine but I wanted an idea.....all cylinders read around 120 psi. The manual says 130-160 but above 100 should work......what do you guys think?

I wanted to do a wet compression test but didn't get time....

On Monday I went and bought Allen head bolts for the carbs and bought a gallon of Carb dip
 
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