07 Speedster 150 SC -only 6400rpm at full throttle ?
- Thread starter rodge37
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You have a fouled plug....replace all 3 and you will be golden!!
Devildog1775
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I have a 2008 Speedster 150 with a 215hp and 23 hours on it, doing the same thing. Its running at 6300 rpms and 35 mph on the GPS. Changed all three plugs and still no change. Took it back to the dealer today.
Devildog1775
New Member
Two weeks ago my speedster quit on the water saying no oil pressure. Dealer found bad oil sender. Thats when it started acting up at 6300 rpm at wot. Im thinking its related?
Devildog1775
New Member
I will let you know as soon as I hear back. A co-worker said he had to much oil like Thor7000 had said. I have only had my 2008 Speedster for 6 weeks and the dealer said they changed the oil before I purchased it, so you would think its at the right level.
Devildog1775
New Member
The clutch on the super charger failed. Good thing for the extended warranty. But you shouldn't need a rebuild at 23 hours.
Devildog1775
New Member
So yesterday I took my 2008 Speedster 150, 215hp out after having the Supercharger rebuilt. It rocked around 7800 rpms and 63 mph. What a great feeling! Spent most of the day tubing and wake boarding with family, life is good.
Devildog1775
New Member
Mine 215hp has a plastic shield on top of engine, removed that, plug boots are just under that. The plugs sit far down, but if you use of piece of rubber hose after you loosen the plugs they can be pulled up. The rubber hose also works well for starting the plugs, you dont have to worry about stripping or cross threading, just tighten finger tight and snug with a spark plug socket.
incognito2428
Active Member
I have one with only thirteen hours on it and was told that the gas with ethynol in it will cause that. Mine was doing the same thing but only briefly every once in a while . I changed
to ethynol free and it is not doing that anymore. My only concern after switching gas was that my 2009 supercharged was not quite hitting 8000 rpm's it a little over 7800 but apparently that is good depending on conditions. According to what I heard,ethynol will cause moisture in the gas tank and cause the low rpm's. Try switching and see if that helps. If it does? Let me know.
to ethynol free and it is not doing that anymore. My only concern after switching gas was that my 2009 supercharged was not quite hitting 8000 rpm's it a little over 7800 but apparently that is good depending on conditions. According to what I heard,ethynol will cause moisture in the gas tank and cause the low rpm's. Try switching and see if that helps. If it does? Let me know.
Sounds like you have a SC problem. I wouldnt run it anymore until you get that checked.
The washers and the rebuild are usually 2 different services. But you might as well take it off and have it all done at once. Hopefully yours is just slipping and nothing has broke yet.
Worst case, the washers shattered and fell in the engine and the pieces made a mess and now the whole thing is a huge anchor. Repair, $5000+
You need to stop using it. i told ya that when you first posted. It may just be that it is slipping and will just need to be rebuilt. You keep using it and you will be sure to ruin the engine totally.
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