8.3:1 is stock
The compression ratio for a 1978 Yamaha DT 100 is typically around 6.9:1. This ratio is designed to optimize performance for the bike's 98cc two-stroke engine, balancing power output with reliability. Proper maintenance, including regular checks on the piston and cylinder, can help maintain this compression ratio over time.
8.25 to 1 From 1977 and down. 1978 and up is 8.0 to 1 But it would really help if I new the year. There is a few other ones that are different, But just VERY LITTLE.
Yes
Standing in front, looking at the engine, clockwise.
I think it is around 160
Yes but you might have to change the driveshaft
350 4 Barrel is what is in mine
The compression ratio for a 1978 Johnson 85hp outboard motor is typically around 130 to 150 psi per cylinder when measured with a compression gauge. It's important to ensure that all cylinders have similar readings for optimal performance. If compression is significantly lower in any cylinder, it could indicate issues such as worn rings or a blown head gasket. Regular maintenance can help maintain good compression levels.
As long as The Engine is The same that the trasmission was on before then yes it will work.
How do you change the heater core on a 1978 Chevy Nova Custom with a 305 v8 engine and where is it located on the car? thanks jj
Psi compression on the 1978 Evinrude model 115899C refers to the pressure measurement in pounds per square inch (psi) within the engine's cylinders during a compression test. This measurement indicates the engine's health and efficiency, with typical compression readings for a well-maintained outboard motor ranging between 90 to 120 psi. Low compression may signal issues such as worn piston rings or cylinder damage, affecting engine performance. Regular checks can help ensure optimal operation and longevity of the motor.
Probably a turbo 350.