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Edit: No idea why my images keep getting uploaded upside down....
Picked up my first 900 about a month ago off CL, an 05 50th 166". Probably over payed a bit at $1700, but w/e. I did my reaserch and new the problems with them, but im pretty mechancially inclined so it didn't bother me.
950miles on the clock, owner claimed it hadnt been ran in 3+years and that it needed a new fuel pump and intake boots (backed up by the dealer service quote he had).
Didnt take any before pics but it was in good physical condition, just dirty from sitting for many years.
Ordered a pair of good used intake boots from an 06 on ebay. Along with a good used fuel pump/pickup assembly to replace the one that was all rotted out. Once these were replaced the sled fired right up with some fresh fuel.
Adjust the TPS according to the manual and it seemed to idle and run well.
-Removed all the decals and polished the hood
-Deleted the radiator and fabbed up a quick intake
-Realized the stock bumper sucks, especially with the radiator removed, so I bought a Skinz front bumper and found out my intake didnt fit, so had to rework that....
-Hunted for some betterboards but no luck, so I decided to mess around my self. Bough some of the SPI traction things, and riveted them on, then welded them for some more rigidty, then hogged out a bunch of material, still need to clean it up and make all the holes match, but i wasnt super interested in making it pretty, just want it to function.
-Machined a basic 4" bar riser out of aluminum
-Replaced the plugs
-Removed the oil pump and spun it with a drill to verify it was flowing
-Rebuilt the primary with an SPI kit, which was absolutely garbage. The pins for the weights were too short, and the buttons were almost twice as thick as they should have been. Ended up machining some buttons out of some unfilled PEEK that I had lying around the shop and got a real nice fit. Had the clutch balanced locally. Still using the stock weights and spring, for now. Shimmed it for a brand new Gates 44C4553, with .01" clearance. -Bought some Frogskin and machined some "frames" to make some vents. Did one on the clutch side cover and the shocktower in front of the clutches. Not crazy about how the side turned out, Ill probably redo it to cover most of the side since I goofed on the front angle and it doesnt match the plastic.
-Ordered Wiseco pistons/top end gaskets (I know the deal with the warm up cycle/requirements), i am not ready to drop the coin on OEM pistons yet for this sled.
-Ordered the x-937 throttle/oil cable from MotionPro, should have that in a week or two. If anyone is wondering, the price has gone up substantially. I think about $75 + shipping.
- Need to clean the exhaust valves
Did a quick shake down run this past weekend and I definitely have some things to sort out.
Question:
So, right off the bat I noticed the sled didnt like more than 1/4 throttle, sort of like a bog but more of like just a soft limiter. I rode gently all day (wasn't going to sit at the truck all day while my buddy's rode) and noticed that I could not get more than 6k out of it, which limited me to about 35mph. I could only get to 6k by lightly rolling into the throttle but no more than 1/4. No CEL, flashing or solid. From what I read, the sled was in limp mode. I will be tearing apart the harness to redo the TPS portion, and hopefully this fixes it. I will most likely end up pulling the whole motor out this weekend just to go through everything. Anyone's input to this would be great.






Picked up my first 900 about a month ago off CL, an 05 50th 166". Probably over payed a bit at $1700, but w/e. I did my reaserch and new the problems with them, but im pretty mechancially inclined so it didn't bother me.
950miles on the clock, owner claimed it hadnt been ran in 3+years and that it needed a new fuel pump and intake boots (backed up by the dealer service quote he had).
Didnt take any before pics but it was in good physical condition, just dirty from sitting for many years.
Ordered a pair of good used intake boots from an 06 on ebay. Along with a good used fuel pump/pickup assembly to replace the one that was all rotted out. Once these were replaced the sled fired right up with some fresh fuel.
Adjust the TPS according to the manual and it seemed to idle and run well.
-Removed all the decals and polished the hood
-Deleted the radiator and fabbed up a quick intake
-Realized the stock bumper sucks, especially with the radiator removed, so I bought a Skinz front bumper and found out my intake didnt fit, so had to rework that....
-Hunted for some betterboards but no luck, so I decided to mess around my self. Bough some of the SPI traction things, and riveted them on, then welded them for some more rigidty, then hogged out a bunch of material, still need to clean it up and make all the holes match, but i wasnt super interested in making it pretty, just want it to function.
-Machined a basic 4" bar riser out of aluminum
-Replaced the plugs
-Removed the oil pump and spun it with a drill to verify it was flowing
-Rebuilt the primary with an SPI kit, which was absolutely garbage. The pins for the weights were too short, and the buttons were almost twice as thick as they should have been. Ended up machining some buttons out of some unfilled PEEK that I had lying around the shop and got a real nice fit. Had the clutch balanced locally. Still using the stock weights and spring, for now. Shimmed it for a brand new Gates 44C4553, with .01" clearance. -Bought some Frogskin and machined some "frames" to make some vents. Did one on the clutch side cover and the shocktower in front of the clutches. Not crazy about how the side turned out, Ill probably redo it to cover most of the side since I goofed on the front angle and it doesnt match the plastic.
-Ordered Wiseco pistons/top end gaskets (I know the deal with the warm up cycle/requirements), i am not ready to drop the coin on OEM pistons yet for this sled.
-Ordered the x-937 throttle/oil cable from MotionPro, should have that in a week or two. If anyone is wondering, the price has gone up substantially. I think about $75 + shipping.
- Need to clean the exhaust valves
Did a quick shake down run this past weekend and I definitely have some things to sort out.
Question:
So, right off the bat I noticed the sled didnt like more than 1/4 throttle, sort of like a bog but more of like just a soft limiter. I rode gently all day (wasn't going to sit at the truck all day while my buddy's rode) and noticed that I could not get more than 6k out of it, which limited me to about 35mph. I could only get to 6k by lightly rolling into the throttle but no more than 1/4. No CEL, flashing or solid. From what I read, the sled was in limp mode. I will be tearing apart the harness to redo the TPS portion, and hopefully this fixes it. I will most likely end up pulling the whole motor out this weekend just to go through everything. Anyone's input to this would be great.





