The question is asked often "Do srx reeds fit in a sx motor?"
The answer is simple, NO they don't.
They can however be made to fit
The other question that is asked is "Are they better?"
The answer to this one is I don't know.
Srx reed cages are different in these ways.
1 they are wider
2 they are more open inside
3 they have more reed area
4 they have the stoppers mounted lower on the cage assembly. when the reed notch mod is done on srx reeds in an sx the stoppers are even more out of the way of the rear transfer port
The problems that make these a non direct fit item are:
1 the carb flanges dont line up to the reed stuffers
2 the reeds dont fit in the sx case
The cure for these problems are as follows:
1 Using a small drum sander remove material from the inside of the carb flange so that there is a smooth transition from the carb to the reed stuffer. Start first by setting stuffer on the boot and tracing the opening onto it.
2 Using a drum sander remove about 1/16in from the side of the case opening where the reed tip bottom out on the case. This can be done in the sled assembled. Use clean rags and carb cleaner to wipe everything in your case clean so that tape will stick. Use strips of aluminum duct tape(used for heat shielding) to cover the inside of the case. Fit the tape as tight as you can to everything even the crank. Even run the tape over the area where you are doing the grinding. Once you have covered the inside tight and complete make a template. Place the reed on its side on a piece of cardboard and trace profile of the reed. Cut it out and place it against the side of the case where the reed would go. Trace the template and cut with a rasor knife a little bigger than the line. Use hard grease on any places where the tape is not secure to catch any filings. Also while doing this have a friend hold a vacuum cleaner close by to keep the mess down. Now you know where to grind and have no worry of getting metal in your motor. Grind away and keep triying to install your reed cage as you go. There is alot of metal in this spot so dont worry about grinding through.
The answer is simple, NO they don't.
They can however be made to fit
The other question that is asked is "Are they better?"
The answer to this one is I don't know.
Srx reed cages are different in these ways.
1 they are wider
2 they are more open inside
3 they have more reed area
4 they have the stoppers mounted lower on the cage assembly. when the reed notch mod is done on srx reeds in an sx the stoppers are even more out of the way of the rear transfer port
The problems that make these a non direct fit item are:
1 the carb flanges dont line up to the reed stuffers
2 the reeds dont fit in the sx case
The cure for these problems are as follows:
1 Using a small drum sander remove material from the inside of the carb flange so that there is a smooth transition from the carb to the reed stuffer. Start first by setting stuffer on the boot and tracing the opening onto it.
2 Using a drum sander remove about 1/16in from the side of the case opening where the reed tip bottom out on the case. This can be done in the sled assembled. Use clean rags and carb cleaner to wipe everything in your case clean so that tape will stick. Use strips of aluminum duct tape(used for heat shielding) to cover the inside of the case. Fit the tape as tight as you can to everything even the crank. Even run the tape over the area where you are doing the grinding. Once you have covered the inside tight and complete make a template. Place the reed on its side on a piece of cardboard and trace profile of the reed. Cut it out and place it against the side of the case where the reed would go. Trace the template and cut with a rasor knife a little bigger than the line. Use hard grease on any places where the tape is not secure to catch any filings. Also while doing this have a friend hold a vacuum cleaner close by to keep the mess down. Now you know where to grind and have no worry of getting metal in your motor. Grind away and keep triying to install your reed cage as you go. There is alot of metal in this spot so dont worry about grinding through.
Attachments
Last edited:
