This is how I do a pressure test MacGuyver-style.
http://www.x-h2o.com/gallery/thumbnails.php?album=221
I had my exhaust blockoff plate that I made years ago, but not the rubber seal for it, and had nothing for the carb side.
So, off to Home Depot. The expandable pipe plugs didn't fit, the 1.5" was too small and the 2" was too big, so I searched and searched until I found vinyl stair treads, for $.99!
So I made seals for both intake and exhaust, used the bottom plate off the oem 44's for the intake side and my exhaust plate to hold them down.
Then I pressurized the block using my popoff gauge through one of the pulse fittings. This is not advisable if your reeds are in good shape, however my Boyesens don't seal very well so they will let the air through.
I pumped it up to 8psi and it was bleeding off very slowly, from my popoff gauge it appears based on the soapy water test. It was way less than 1 psi/minute which is what I go by, so I should be fine.
The reason I did this was because the last time I rode it seemed like the engine wanted to run away on the trailer, but only after revving some, and it did it once in the air while riding, but it only goes up to like 4000-5000 rpms maybe.
After verifying the engine is tight, I figure it's from my low screws being too far in plus running an upper 20's popoff. I put my low screws back to 1 turn and will test again today.
http://www.x-h2o.com/gallery/thumbnails.php?album=221
I had my exhaust blockoff plate that I made years ago, but not the rubber seal for it, and had nothing for the carb side.
So, off to Home Depot. The expandable pipe plugs didn't fit, the 1.5" was too small and the 2" was too big, so I searched and searched until I found vinyl stair treads, for $.99!
So I made seals for both intake and exhaust, used the bottom plate off the oem 44's for the intake side and my exhaust plate to hold them down.
Then I pressurized the block using my popoff gauge through one of the pulse fittings. This is not advisable if your reeds are in good shape, however my Boyesens don't seal very well so they will let the air through.
I pumped it up to 8psi and it was bleeding off very slowly, from my popoff gauge it appears based on the soapy water test. It was way less than 1 psi/minute which is what I go by, so I should be fine.
The reason I did this was because the last time I rode it seemed like the engine wanted to run away on the trailer, but only after revving some, and it did it once in the air while riding, but it only goes up to like 4000-5000 rpms maybe.
After verifying the engine is tight, I figure it's from my low screws being too far in plus running an upper 20's popoff. I put my low screws back to 1 turn and will test again today.
