 |
|
| Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
|
|
LinkBack | Thread Tools | Display Modes |
|
#34
Posted to rec.crafts.metalworking
|
|||
|
|||
OT; 3-wheeler doesn't start
On Sun, 09 Apr 2006 11:30:47 GMT, Nick Hull
wrote: In article , "Keith Marshall" wrote: "Nick Hull" wrote in message I feel like a fool for posting this since I should be able to fix it in my sleep, but I can't. 1983 Kaweasaki Prairie 3-wheel ATV wouldn't start. After digging into it I found the 3 screws sheared that transmit starter torque to the flywheel. Fixed that; engine turns, has compression (50#, admittedly low, likely dirt on valve seats that would blow out on start since I measures 100# 2 weeks ago). Starter is turning motor in the correct direction, the intake & exhaust valve operate in the correct sequence when I turn the crankshaft by hand, The spark is hot & blue and will jump a .250" gap in air. Timing is not adjustable but a timing light seems to show a flash at the correct 10 deg BTDC. My son had a 1974 Honda 100 that we did some work on and afterward it wouldn't start. We had a similar situation to yours except that it was a 4-stroke and I'm getting the impression yours is a 2-stroke. My Kawasaki is a 4-stroke We had good fire. We obviously had fuel because the plug was getting wet. We also had great compression though. No matter what we did it just wouldn't crank. We finally found out that the cam that lifted the points could be either 180 degrees out or 120 or 240, I can't remember whether it had 3 positions or 2. At any rate, we moved it to another position and it fired right up. No cam, no points, just a pickup coil like a magneto but the coil is battery powered thru an electronic coil driver and it all 'seems' to be working great. But with the compression so low it seems like maybe you have a valve hanging open. I'm guessing I've got some crud/dirt/fibres under the valve seat from stuffing rope in the cylinder, hoping it will blow out when it starts. Best Regards, Keith Marshall "I'm not grown up enough to be so old!" You can expect low compression when cranking many of these engines because they have a compression release - like Briggs and Stratton with their "EZEE SPIN" *** Free account sponsored by SecureIX.com *** *** Encrypt your Internet usage with a free VPN account from http://www.SecureIX.com *** |
| Thread Tools | Search this Thread |
| Display Modes | |
|
|
Similar Threads
|
||||
| Thread | Forum | |||
| Fresh Start vs. Sta-bil | Home Repair | |||
| RPC run capacitors | Metalworking | |||
| Sony Vega 32" won't start | Electronics Repair | |||
| Tecumseh HMSK-80 Hard to start, need help | Home Repair | |||
Threaded Mode
