Hey guys, me again! 97' Speedster that I have owned for a few weeks now. Compression readings on one motor are 135 and 135, the other are 150 and 145. I would like to make it through the season like this if possible and rebuild over the winter. In the mean time I want to gather all of the info I can in case I need to make a move sooner. Our season here is short so if I need to do a rebuild I want to have my ducks in a row. I have seen multiple options for rebuild kits, everything from simply rings and gaskets, to cylinders, to sleeves. I assume I will need to know more about the condition of the top end of the motor before I decide which type of kit is for me? What is the best way of figuring all of this out? Also are there kits or manufacturers to look for or avoid? Also am I accurate in thinking a top end rebuild will address my compression issues? Thanks in advance, you guys are real lifesavers. I will start to post before and after pictures soon as I have been putting a lot of hours into making this into a real gem. Thanks again!
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SeaDoo 717 rebuild questions
- Thread starter OhHey
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ok, since that boat is like 18 years old and I bet these are the original motors not rebuilt. I would go to a shop like SES, Fullbore, or SBT. It will be way more easier on you to do that that to try to just like do a topend. Ig only had like 100 hours than yes do a topend. Time and money will be sell spent going with the total rebuild.
The one is fine 145-150 you are right there in the zone. The other one is getting low but you should make it until the off season.
The one is fine 145-150 you are right there in the zone. The other one is getting low but you should make it until the off season.
If I follow you are saying I should do a full rebuild instead of just a top end?
For the age you are safer with a full rebuild since you have no idea when or if they were touched unless you take them apart. Most people do the topend which is about 1/2 the cost of and engine last 1-3 years maybe on a worn bottom end. Most people are not a full speed in a boat all time so I giving it 3 years tops. Since you have a 97 which is DESS you can get the MPEM read to see how many hours it shows on it. It won't be exact since I am pretty sure if you leave the key in place and do nothing time is running according to MPEM so you might be a few hours off but close. Of course do the lower compression one first and if money allows do both at the same time. Right now just ride them till they die
Hmmmm certainly food for thought.... I was hoping to do a top end rebuild to regain the lost compression. I was going to do go the full-bore route for $295 including the machine work it seemed like the best bang for my buck.... Perhaps I should rethink this. Our season is about 3 months long so I am not a fan of running it until it dies as I could loose most of a season. I suppose at $800 for a rebuilt it's not the end of the world if I just have to go that route but would prefer the $300 obviously haha!
Either way sending out for machine work in season will take longer. Even is they rushed your cylinders you will we talking a few weeks. Tony has the best idea to get your through with the honing and rings. Sending your engine for a rebuild in season wish you luck on that...
I have been keeping my eyes open for exactly this, hoping to find a deal if I keep at it!
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