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rings!

  • Thread starter Thread starter jabberjoe87
  • Start date Start date
J

jabberjoe87

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compression is all out of whack on the 77 750 and this winter i am gonna do a good ole hone and rings combo dealy. Any suggestions on where to get rings or just go to z1 or whatever.
 
I got all the rings and what not for my 650 build last year from crotchrocket.com , they sell OE suzuki parts... I would go with OE always when you can.
 
hey bribird, when doing a ring job or such, do the pistons warb like in a car? i have a 79 750l; will i have to go up a size and have it bored out? thanks, bill.
 
no. 50,000 mi. just wanted to know for future reference. my compression is 120 on every cyl. should be good for a while, but chance favors the prepared mind.
 
hope she goes that far.lol. i need to replace the cyl. head gasket this winter (seepage in the front). and the cam cover gasket (same thing). i thought it would be good to check everything out while i was in there. preventive maint. i guess.lol.
 
my bike doesn't have 20k on it almost that, the PO treated it real bad from what i heard and tourched the motor, my compression across the board is not right and it blows a bit of smoke i'm pretty sure i need rings and a hone
 
yea i think he sucked some rotting airfilter into the motor, i'm gonna replace the rings and valve seals
 
my bike doesn't have 20k on it almost that, the PO treated it real bad from what i heard and tourched the motor, my compression across the board is not right and it blows a bit of smoke i'm pretty sure i need rings and a hone

Is all compression uniformly low of just two cyls?

You may have burnt valves.
 
this could be true, i don't think i'm gonna pull it apart anymore. It runs fine, just has bad compression, starts fine, still has a zone at high rpms. Tryin to save my dough for another bike. For now just gonna keep riding it.
 
If it has 120 psi I would just ride it. If you want to upgrade consider putting an 850 top end on it
 
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If it has 120 psi I would just ride it. If you want to upgrade consider putting an 850 top end on it


i was wondering about that will a 850 jugs,pistons fit my head,and rods ect... i have the 83ed model i want more compression cheap i cant afford 500 just for pistons:eek:, i want a newer bike as well
i want this one but its a money pit:(

my bike has 99-120,last i chked, i had soaked it with oil cause it sat for 8 yrs sompression its suppose to have 189, 125 minimal for best performance, by the factory manual guys, because of the cv carbs im sure
mine has 29k on it but it has a rattle slight, so i think the bore is wore out, or the pistons are kissin a valve from weak springs,not sure which
 
yea one cylinder is at like 50 psi i think, i changed my mind and am prolly gonna do rings and valve seals when its too cold to ride everyday. I just dont wanna invest alota dough as i'm savin up for a nuther bike. I was gonna do the 1000 swap but decided against that as well. Is boring gonna be necessary or will honing be fine, i'm assuming if there is ovalization i'm gonna have some issues
 
the cam chain tool is like gonna be 100 bucks after shipping and tax, what the ef
 
What cam chain tool?

I never used one, I've torn apart 3 GS motors

BTW, why are you focusing on rings?

More likely, no valve adjustment, burned valves
 
I did a valve adjustment last winter. The deal is that the bike consumes oil while running. I did the compression test, then put a dab of oil in the cylinder before performing a second one and from what i remember compression rose atleast a bit on all and substantially on two. I was gonna do valve seals along with the pistons. How did you get the head off of the bike without removing the cam chain? this is on a 77 750 by the way. I"m still having trouble finding a place that sells oem rings
 
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