MountainMax
New member
RE: What is Normal Compression (PSI)
hey guys, just wondering what the stock compression (no mods) was on both the yamaha 700 triple engines, both with and without power valves??
hey guys, just wondering what the stock compression (no mods) was on both the yamaha 700 triple engines, both with and without power valves??
I have had 3 700's without the valves.
Flatland sleds not the MM.
125 Approx stock.
Just shy of 150 after the head gasket Mod
Flatland sleds not the MM.
125 Approx stock.
Just shy of 150 after the head gasket Mod
BoomerSooner
New member
I checked mine when I bought it in November and got about 150 in each cylinder. I bought the sled used from a Yamaha mechanic so not sure if he did any mods to the head gasket, but all 3 cylinders were identical.
stang33
New member
I have between 132-135 on my SRX 700. I was told by the dealer 135 is normal for this model
MountainMax
New member
Different Guages read differently also guys, take reading with three different ones and take the average...........