2004 Ktm 50 Pro Senior Manual
2004 KTM SX 50 Pro Senior LC Reviews, Prices and Specs. Get the latest KTM SX 50 Pro Senior LC reviews, and 2004 KTM SX 50 Pro Senior LC prices and specifications.
The engine power needs to get to the ground by way of the clutch assembly. The clutch is an another important area with great gains in KTM50 performance with clutch replacement and fine tuning. A old worn out clutch will slip and not allow the engines full power to get to the rear wheel. If your KTM50 has a unknown amount of hours or you bought the bike 2nd hand its probadly a good idea to replace the complete clutch assembly & basket with a new one to make sure everything is in proper specs. You can always keep the old clutch as a spare if you think it still has some life in it.
Above is a 1997 - 2000 KTM 50 Pro senior model. These year models all use a Morini Franco S5-GS engine. The “GS” is the code for the 4-pedal reed block cylinder. This easy to see it from a distance because the cylinder is BLACK in color and uses a intake manifold with four bolts. The piston has a ovel hole in the intake side. The ring are the same top and bottom.
Check the head gasket some models had a rubber “o”ring and other bikes had a copper ring/paper head gasket. The other only difference for the different years is the clutch assembly. The early year bikes had a 2-shoe clutch design and the last couple of models had a disc style clutch.
Ktm 50 Pro Senior Parts
Its best to remove the clutch cover and see what model clutch style you have. 1997 KTM50 Pro Junior To the left is a 1997 KTM 50 Pro Junior model. This year KTM50 Pro Jr. Model uses a Morini Franco S5-T engine. The “T” is the code for the 2-pedal reed block cylinder. The 1997 Junior model was the only year & model that used the “T” cylinder. This easy to see it from a distance because the cylinder is silver in color and uses a intake manifold with only two bolts.
The piston has a round hole in the intake side. The ring are not the same top and bottom.
The top ring is a “L” shape the bottom ring is just flat. Above is a 1995-1997 KTM 50SX or KTM50 SXR model. This year KTM 50 model uses a Morini Franco S5-E or S5N engine. The “E” code is for non-reed block STEEL cylinder. The “N” is code for non-reed ALUMINUM cylinder.
This easy to see it from a distance because if the cylinder is “SILVER” in color is the aluminum cylinder. If its BLACK in color it's the STEEL cylinder. Both cylinders have a intake manifold with only two bolts. The pistons are different for these two models.
The STEEL cylinder piston rings are not the same top and bottom. The top ring is a “L” shape the bottom ring is just flat. The aluminum cylinder piston uses two flat rings. Have any questions about parts? Or need help choosing the right ones?
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