PTO vs. MAG

[pjohnson607]

Mechanics interest me very much. I love working with my hands, weather I am taking things apart or putting things together. However, at 17 years of age, I am fairly new to this sort of field. Last weekend I took apart my first engine which happened to be a 787 from my 1996 seadoo xp. I watched youtube videos and read posts from various forums, including this one, to help me. I am happy to say that I have learned a lot from this experience, however there is still a lot of stuff I don't know. One question I kept trying to answer was, what is the difference between PTO and MAG? I was hoping that someone from this forum could help me find the answer. Also I was wondering if anyone knew where I can get a quality 787 engine to a 1996 xp for a low price to replace my old seized-up 787.

 

[LouDoo]

PTO, is power take off, it's the rear of the engine where the flywheel is attached. MAG is the magneto end of the engine which faces the front. The terms usually refer the the cylinders, PTO cylinder is the rear cylinder, MAG cylinder is the front cylinder.

Lou

 

[Spimothy Leary]

for cheap engines, assuming yours is toast , i'd say shopsbt.com

 

[Minnetonka4me]

If you are asking if there are differences between the two cyl they are the same, but have to turn the water outlets around 180.

 

[seadoosnipe]

Keep your interest keen....

Mechanics interest me very much. I love working with my hands, weather I am taking things apart or putting things together. However, at 17 years of age, I am fairly new to this sort of field. Last weekend I took apart my first engine which happened to be a 787 from my 1996 seadoo xp. I watched youtube videos and read posts from various forums, including this one, to help me. I am happy to say that I have learned a lot from this experience, however there is still a lot of stuff I don't know. One question I kept trying to answer was, what is the difference between PTO and MAG? I was hoping that someone from this forum could help me find the answer. Also I was wondering if anyone knew where I can get a quality 787 engine to a 1996 xp for a low price to replace my old seized-up 787.

As long as I've been doing the forum, I don't really remember reading a post that actually stated they were a newbi, and only 17. I don't mean that in a condescending way, I mean that with pride. When I was 17, I was all so proud of myself for tearing down a 327 cu. in, learning to hone and re-ring cylinders, putting in new cam bearings, tru-roller cam chains and solid lifters (the old hydraulics floated out to early), that your post brings back really fond memories. Back then, we didn't have jet skis. I did however, do a good many 2-cycle motorcycle engines and boat motors. That was over 30 years ago and I'm still as curious today as I was then. The terminology is something that will come in time, and will change from motor to motor, so don't beat yourself up over acronyms. The lingo isn't as important as getting down and dirty, looking at parts, seeing fractures and bearing wear, finding the "root cause" of a motor failure. These are the things you'll find most important.

I'm really glad to see people like yourself, in todays society, who want to get grease under their fingernails. Keep at it, this type of trade pays good in the marine business.:cheers: