SBT Engines - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
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post #1 of 16 (permalink) Old 04-30-2019, 02:14 PM Thread Starter
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SBT Engines

Has anyone ever used an SBT Engine? Are they any good? Worth the Money? I'm thinking of replacing my engine in 1997 GP 1200.
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post #2 of 16 (permalink) Old 04-30-2019, 05:59 PM
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Has anyone ever used an SBT Engine? Are they any good? Worth the Money? I'm thinking of replacing my engine in 1997 GP 1200.
Definitely, DO NOT USE sbt! They are very poorly built. Missing and or wrong internal parts. Have heard nothing but horror stories over the years. I use there parts and gaskets due to cost but would never use a motor.

Where are you located?
There is pwcengines in NJ. depending on location, may have some local to you I may know of.
Pwc is cost wise about the same as sbt but I've heard good things of them.
What's wrong with your 1200?
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post #3 of 16 (permalink) Old 04-30-2019, 06:05 PM Thread Starter
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I'm in SoCal. The number 3 piston seized probably due to low oil intake. The sleeve probably needs to be replaced and I was told I should change the crankshaft. Number 1 and 2 are perfectly fine.
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post #4 of 16 (permalink) Old 04-30-2019, 06:25 PM
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I'm in SoCal. The number 3 piston seized probably due to low oil intake. The sleeve probably needs to be replaced and I was told I should change the crankshaft. Number 1 and 2 are perfectly fine.
Ok, cool, don't know of any in soCal. I'm know of a few on east coast. I'll do some asking around for you and post what I get.
Where at in SoCal?
Are you still out injected?
Do you have oil in you bildge?

Depending on how bad it may not need a crank.
If you have tool and mechanicly inclined 2strokes are easy build.
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post #5 of 16 (permalink) Old 04-30-2019, 07:57 PM Thread Starter
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The bilge had some oil but not a lot. I’m in San Diego.
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post #6 of 16 (permalink) Old 04-30-2019, 09:04 PM
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The bilge had some oil but not a lot. I’m in San Diego.
Ok. Oil in bildge is typical of oil line breaking/pulling off. So when you get into it. more than likely it's shrunk up and pulled off number 3 carb.
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post #7 of 16 (permalink) Old 04-30-2019, 09:32 PM Thread Starter
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It was still connected to the carb when I opened it up. I suspect it was clogged or something. So are you recommending a rebuild instead of a new engine? The sleeve also has a chip at the bottom.
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post #8 of 16 (permalink) Old 05-01-2019, 05:09 AM
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Let me ask around. I know of one up by Palmdale, but he is usually back logged.
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post #9 of 16 (permalink) Old 05-01-2019, 06:31 AM
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It was still connected to the carb when I opened it up. I suspect it was clogged or something. So are you recommending a rebuild instead of a new engine? The sleeve also has a chip at the bottom.
I

Yes, it can be rebuilt. So long as there are no open holes from a broken rod. If you just wiped a cyl a rebuild is what I'd do. The crank will need to be checked after a good clean up to be sure it's still in specs.
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post #10 of 16 (permalink) Old 05-01-2019, 10:13 AM Thread Starter
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I

Yes, it can be rebuilt. So long as there are no open holes from a broken rod. If you just wiped a cyl a rebuild is what I'd do. The crank will need to be checked after a good clean up to be sure it's still in specs.
Thanks, that sounds like a better route to go since I can keep the original yamaha parts. Should I rebuild entire engine, new pistons, rings and bore out the cylinders? Also the sleeve in #3 has a chip at the bottom.
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