mulderdad
New member
98 SRX7--8300 kms
Did a compression test today and this is what I got.
Left to right.
Engine cold-116,118,114.
Engine hot--110,112,108. So what do you think?
Re-ring or leave it?
Buy a new guage?
I used a fairly cheap guage.
thanks,
mul
Did a compression test today and this is what I got.
Left to right.
Engine cold-116,118,114.
Engine hot--110,112,108. So what do you think?
Re-ring or leave it?
Buy a new guage?
I used a fairly cheap guage.
thanks,
mul
If at all possible get a good quality gauge and test it again.I would say that your readings should be in the 125 and up range,at least that's what mine are(98 SRX 700).If you still are getting the same readings then I would say that rings are in order.Are you noticing anything like unusual sparkplug fouling or hard starting?
redsnake3
New member
do the test again then pour a little oil in each cylinder. if you get a higher reading with the oil then you should install new rings.
mulderdad
New member
I have noticed it is a lot harder to start this year than last year.
Now it takes like 6-7 pulls when last year I could start first pull 95% of the time.
How hard is to to put in new rings?
I have wrenched an every part of my sled except the motor.
(I've done drivers,clutches, new track,chaincase, brakes, bearings, etc)
Is it fairly simple and straight forward to do the rings?
Will I see any power gains?
thanks,
mul
Now it takes like 6-7 pulls when last year I could start first pull 95% of the time.
How hard is to to put in new rings?
I have wrenched an every part of my sled except the motor.
(I've done drivers,clutches, new track,chaincase, brakes, bearings, etc)
Is it fairly simple and straight forward to do the rings?
Will I see any power gains?
thanks,
mul
redsnake3
New member
if the rings are gone then you will see a gain because of the blowby you would be getting. its not that hard just make sure you have all the tools before you start.
mulderdad
New member
Thanks, i'll try the oil test tomorrow.
mul
mul
mulderdad
New member
Did another compression test today with a little oil in the cylinders.
Yesterday cold---------- 116,118,114.
Today cold with a little oil-119,124,121.
I am going to get another guage this week.
Any thoughts?
mul
Yesterday cold---------- 116,118,114.
Today cold with a little oil-119,124,121.
I am going to get another guage this week.
Any thoughts?
mul
redsnake3
New member
not much of a difference, but for the price of a set of rings i would redo them just for the confidence in the sled when riding, you dont want to be in the middle of nowhere and have the engine give out.
mulderdad
New member
Thanks,
mul
mul
yamaholic22
Active member
very easy to do 
Make sure you bleed the cooling system good when you are done.
Make sure you bleed the cooling system good when you are done.
mulderdad
New member
Do I need any special tools to do the rings?
Other than a torque wrench for the heads.
Will I notice any difference in the sled after?
Any links to doing a ring job?
thanks,
mul
Other than a torque wrench for the heads.
Will I notice any difference in the sled after?
Any links to doing a ring job?
thanks,
mul
Last edited:
yamaholic22
Active member
you don't need any special tools other than a torque wrench and a 12mm socket. Sled will probably feel a little snappier after putting in the new rings. Use regular old yamalube or citgo two stroke oil or something for break in, synthetic oils are too good and won't break the rings in properly.