She wanted to learn how to wrench and ride so we found an old pile to tear down and fix up.
Here's what we started with.
The thing needed a few parts but we got lucky and picked up a roller on eBay for $20 that had a bunch of good stuff still hanging off it.
After breaking both bikes down and picking the best from the lot we wound up with a bit nicer end result than was imagined at the start. Total cost for the bike and rework was around $200.
Makes me wish I was a kid again.
Here are some specs on the KD 100 from various sources.
| Make and Model | Kawasaki KD100-M2 |
| Correct Color | Quick Silver w/Black fenders |
| M2 Frame Serial Number Range | KD100M-005001 to 012506 |
| M2 Engine Serial Number Range | KD100ME005001 to 012509 |
| Dry Weight | 154 lbs |
| Wheelbase | 43.3 in |
| Seat Height | 27.5 in |
| Ground Clearance | 6.3 in |
| Engine | 99 cc (6.04 cid) air cooled rotary valve 2-stroke 1-cylinder |
| Bore x Stroke | 1.95 x 2.04 in (49.5 mm x 51.8 mm) |
| Compression Ratio | 7.3:1 |
| Maximum Horsepower | 8.5 at 6500 rpm |
| Maximum Torque | 7 lb/ft at 5500 rpm |
| Carburetion | Mikuni VM19SC |
| Carb Air Screw Setting | 1-1/4 turns out |
| Idle Speed Setting | Lowest stable rpm around 1300 ±100 |
| Ignition System | Fixed Advance Flywheel Magneto |
| Spark Plug | NGK B7HS 0.024-0.028 in gap |
| Ignition Timing | 20° btdc |
| Point Gap | 0.012-0.016 in |
| Transmission | 5-speed Constant Mesh |
| Shift Pattern | N-1-2-3-4-5 from bottom up |
| Gear Ratios | 1st-2.92, 2nd-1.76, 3rd-1.30, 4th-1.09, 5th-0.96 |
| Transmission Oil | 0.64 (about 2/3) qts SE class SAE 10W30 or 10W40 |
| Drive Chain Slack | 0.59-0.98 in |
| Fuel Tank Capacity | 1.58 gal |
| Fuel/Oil Mix Ratio | 50:1 |
| Front Tire | 2.50-16 |
| Rear Tire | 2.75-14 |
nice.. I'm doing my sons now . Sat for 10 years in my shed carb a mess
ReplyDeleteThanks. It was a fun and simple re-build. The niece worked hard on it and learned a lot. Sad thing was she got interested in boys and girlie stuff after it was together and never got to ride it much. Good luck with your son's.
ReplyDeleteI have the same exact bike in good cosmedic and running shape.... what would you price it at?
ReplyDeleteCouldn't really say.
ReplyDeleteI just picked up a '79 KD100, for $350. It runs but fouls sprark plugs when trying to get it started, and thus is hard to start. I have not started working on it yet, but I assume it's too rich and needs carb adjusted. Any tips?
ReplyDeleteTips? Not really much more than the normal stuff. Fuel, air, spark. Make sure all the screws are tight on the case, carb mount, etc.
DeleteI've found sound advice on the forum at Carburetors by WiredGeorge.
I found a kd100m durt bike with no engine is there a place where I can buy a new engine or used one or a universal engine can some one help me before I throw it back to the street
ReplyDeleteBeats me Man. I believe the bigger KE100 uses the same engine though. Good luck in your search and please feel free to come back and comment on anything you find.
ReplyDelete