How much does a Shovelhead weigh?
Figure on about 600 pounds. Seat height and seat width are a major consideration, even more than weight.
What should the PSI be on a four stroke compression test?
Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. Here is everything that you need to know about outboard compression tests. How to do them and what the results mean for you! What Is A Compression Test?
How to find out if engine compression is normal?
To find out if the compression values are normal or not, go to: How To Interpret The Engine Compression Test Results. CASE 3: All eight compression values were similar and above 120 PSI. This lets you know that a compression problem is not behind the no start or misfire problem you’re trying to troubleshoot.
What’s the compression range on a Mercury 25 HP cylinder?
They not only vary from the reporting individual but from manufacturer to manufacturer. For instance, a fully functional Mercury 25 Hp cylinder compression value may be significantly different than that of a Johnson 25 Hp. Its also rather hard to find where a manufacturer will say the compression range should be from this psi to that psi.
What should the compression be on an outboard?
This source says modern two-stroke outboards should be in the 90 to 105 psi range. However if you watch the end my video below you will see that my 1979 Evinrude 6 Hp cranks easily cold (2 pulls) with 60 psi compression This source says the older two stroke outboards below 25 Hp should be between 75 and 85 psi.
Good results for Four-Strokes should be 180-210 PSI, and Two-Strokes should be around 110-130 PSI. Here is everything that you need to know about outboard compression tests. How to do them and what the results mean for you! What Is A Compression Test?
To find out if the compression values are normal or not, go to: How To Interpret The Engine Compression Test Results. CASE 3: All eight compression values were similar and above 120 PSI. This lets you know that a compression problem is not behind the no start or misfire problem you’re trying to troubleshoot.
They not only vary from the reporting individual but from manufacturer to manufacturer. For instance, a fully functional Mercury 25 Hp cylinder compression value may be significantly different than that of a Johnson 25 Hp. Its also rather hard to find where a manufacturer will say the compression range should be from this psi to that psi.
This source says modern two-stroke outboards should be in the 90 to 105 psi range. However if you watch the end my video below you will see that my 1979 Evinrude 6 Hp cranks easily cold (2 pulls) with 60 psi compression This source says the older two stroke outboards below 25 Hp should be between 75 and 85 psi.