|
Ol John T in Indiana
11-18-2002 17:03:20
|
|
Re: 49G just gets harder and harder to start in reply to Ol Mark in In., 11-18-2002 16:09:07
|
|
| |
Hi neighbor Ol Mark, well yours is a wide open question for sure, and if you read Wayne's post immediately below, you will get my take on plugs. You say you have a bunch of plugs?? Are they all flat black sooty looking??? Or wet deep black looking??? And are they fouling out after only a short period of time?? If so, try a heat range or 2 hotter. I dont think you need a timing light so much, because if its too far advanced, the old girl will crank over hard near TDC and bump the starter trying to kick back when cranking. If shes too slow, it will pop loudly at no load idle like youre hooked to a plow or something. Anyway, you can try and adjust the timing to see if it helps, and rememebr the advance on the back side of the mag is what sets your running advance (around 20 to 25 degrees) timing as opposed to the start up timing (less than 250 RPM) when the mag spring is winding up and tripping over. Of course, you then dynamically set it by rotating the mag CCW to advance and CW to retard. Finally regardign ignition, be sure the points are clean and free of pits, burning, or carbon build ups and gapped around 0.015 to 0.017 or so. The cap and rotor need to be clean and free of carbon tracks and I assume you have real wire wires, not auto carbon suppressor types?? If you remove the plugs and have the plug wires 1/8 or less from the frame and crank her over, the spark should be a deep fat blue and not a skinny light yellow wimpy color. If not, test back directly to the mags coil output (cap removed) with a wire between it (the coils button output which goes against the litle spring) and case 1/8 or less away. If the spark is good and blue there, but not out the plug wires as described above, the problem may be in the cap and/or rotor and/or wires. As far as a fuel problem, check and see if when you choke it, the choke butterfly is ACTUALLY CLOSING properly (not just that the rod is pulled) and you may want to check for restrictions in the air cleaner also. Try opening the idle needle an extra 1/4 turn. If you check for full choke closure and the condition of your points and their gap and the quality of spark and post back, maybe we can determine if its a fuel or ignition problem and proceed from there. I always reccomend fresh plugs (still do), but it sounds like you are fouling them too quickly, which may be an ignition problem (weak mag due to points or condensor or coil etc) or an excess unburned fuel problem causing it, like the load needle is too rich or choke not opening or air restricted etc. At fast throttle, is the stack burnign clean, or do you see black smoke?? If so, lean the power needle and remove the air cleaner and check the choke butterfly. Other hard startign woes can be due to vacuum leaks (makes her too lean) in the carb (was the throttle shaft rebushed at rebuild??) or other places. Sorry so many questions, but their answers will help us help you. Im in Bloomington, Indiana, where are you?? Good Luck, Ol John T Nordhoff
|
|
|
