Honda CB300s sold in the U.S. have not come with OEM tool kits for a number of years (in contrast to those sold outside the US, which do). My 2017 CB300F only included a vinyl tool pouch with a 5mm hex key, a plastic fuse puller, and a helmet lock cable. So, if U.S. owners want a roadside tool kit that fits under the seat, they must build their own. Although eBay offers some generic options with incomplete and questionable components for a little under $20, one can also build a more complete kit with slightly less questionable Honda OEM parts for less than $35. For those interested in building one out, here are all the part numbers in one list. They can be ordered through a dealer or any Honda parts supplier. The latter includes Revzilla which may be the least expensive route if you get the order total above $39.95 so shipping is free. This is honestly an OCD exercise. For general maintenance (and anything else) you’ll want a set of “real” tools in anything but an emergency. Still, it's nice to have something there.
Honda tools that come with the U,S. CB300s:
Honda tools to add:
The non-US Honda toolkit also includes:
I also carry:
I’ve installed a Battery Tender quick-disconnect harness under the seat (which comes with the Battery Tender Junior or 800 smart battery charger / maintainer).
The plastic cut-out under the seat for the tool bag is 7 1/8"L * 3 5/8"W * 1 3/4"H (with some wiggle room on height). There’s also some space next to and behind it.
Hope this info helps someone. Stay safe.
Honda tools that come with the U,S. CB300s:
- Tool Bag (160mm) 89219-KGH-900
- Fuse Puller 38235-TA0-A01 (Spare fuses are in the fuse box)
- Wire Helmet Holder 77236-KAZ-780
- Hex Wrench (5mm) 89221-429-000
Honda tools to add:
- [Screwdriver] Grip 89103-538-000
- Screwdriver (NO.2 +/-) 89102-KTC-900
- Eye Wrench (19mm) 99006-19000 (Alt. part #: 89219-KWW-601)
- Eye Wrench (24mm) 99006-24000
- Eye Wrench Handle 89217-KGH-900
- Spanner / wrench (10 x 14mm) 99001-10140 (Alt part #s.: 89211-KWW-640)
- Spanner / wrench (8 x 12mm) 99001-08120 (Alt. part #s: 89211-MGZ-J00 & 89224-431-670)
- Pliers (135mm / 5.3” RIKEN) 89210-GBJ-J00 (not included in Honda’s list, but a small pair of pliers should have been.)
The non-US Honda toolkit also includes:
- A Pin Spanner 89202-KY1-700 (for the rear shock pre-set).
The Honda spanner is small and awkward to use. I bought a Motion Pro 08-0029 Shock Collar Spanner Wrench 68/87mm which I keep it in my garage toolchest. - A [Spark] Plug Wrench (16.5) 89216-MAT-000 (The CB300s [NGK] SIMR8A9 spark plug requires a 16mm (5/8”) plug wrench.)
Accessing the sparkplug on the CB300 requires a fair amount of disassembly. I already had a GearWrench 80546 5/8” (16mm) swivel sparkplug socket in my garage toolchest.
I also carry:
- A 6mm hex key
- 4-6 x 8-inch cable ties
- A small roll of electric tape
- An inexpensive small lock-blade knife like you’d find in a bin at a hardware store counter
- A kickstand plate (for parking on soft ground)
- A disk brake lock (7mm pin) with reminder cable
- A pencil-style tire gauge (5 - 50 psi)
- and A Bic stick pen, piece of paper, registration, insurance card, and a $10 bill for emergency gas money
I’ve installed a Battery Tender quick-disconnect harness under the seat (which comes with the Battery Tender Junior or 800 smart battery charger / maintainer).
The plastic cut-out under the seat for the tool bag is 7 1/8"L * 3 5/8"W * 1 3/4"H (with some wiggle room on height). There’s also some space next to and behind it.
Hope this info helps someone. Stay safe.