How To Service The Reed Valves On Your 1997 – 2001 Honda CR250
The Tools You Will Need Are:
- 8mm Socket
- Feeler Gauge
- Plastic Scraper
- Philips Screwdriver
- Threadlocker
- Carburetor Cleaner
- Shop Towels
The Parts You Will Need Are:
- New Set Of Reeds – 14111-KZ3-B11
- New Gasket – 14132-KZ3-880
If you don’t have your reeds or gasket yet, you can get yours HERE (Link to RockymountainATVMC.com)
Related: 1997-2001 Honda CR250 – Front Caliper Service
Servicing your reed valve will cost around $20 for OEM parts, and take about half an hour to complete.
Start with your bike on a stand with the carburetor removed.
Reed Valve Removal: | (Click To Enlarge) |
Remove the carburetor boot mounting bolts, then pull the reed valve assembly and gasket. | ![]() ![]() |
Make sure to stuff a shop towel in the reed valve housing to keep junk out of your crankcase. | ![]() |
Clean & Inspect Reed Valve Assembly: | |
Clean the reed valve housing inside and out with a PLASTIC scraper. | ![]() ![]() |
Inspect the reeds for any visible damage. If you find any, replace your reeds. Inspect the reed valve body and reed stoppers. | ![]() |
If you find a missing screw, you might want to check out your crankcase. | ![]() |
If your reeds look good, use your feeler gauge to measure the clearance between the reed ends and the body. Maximum Clearance:
| ![]() |
These valves are within spec, but since I don’t know when they were serviced last, I am going to install a set of new pedals. | |
Remove the reed stopper mounting screws, discard the old pedals, and clean the body. | ![]() |
Align your new pedals, and install the screws with thread locker. I find it easier to thread the screws a few turns, then pull each one out individually to apply thread locker. | ![]() |
Make sure the thread locker does not get on the pedals. | ![]() |
Reed Valve Installation: | |
Remove the shop towel from the reed valve housing, and install the new reed valve gasket, with the tacky side in. | ![]() |
Install the reed valve assembly with the tabbed side facing up. | ![]() |
Make sure the clutch guide is mounted on the top left side of the assembly. | ![]() |
Install the mounting bolts finger tight, then gradually tighten them in a criss-cross pattern. | ![]() |
If you have any questions or anything to add, please leave them in the comments or on our FaceBook page!
Keep Your ’97-’01 CR250 Running Right!
- Service Specification
- Clutch Replacement
- Carburetor Service
- Engine Top End
- Brakes
- Exhaust
- Front Fork Maintenance
- Rear Shock Rebuild
- Wheels & Tires
- Kickstarter Inspection
- External Shift Linkage