Does the engine seem to turn over VERY easily?
LoudFastUgly said:Does the engine seem to turn over VERY easily?
knucklehead459 said:is the plug getting wet?
ktm161 said:ill check that.not a bad idea..i just dont get why its so easy to kick i used to have a 2007 crf 70 and it was alott harder to kick
Giffin774 said:Take the carb off and clean your jets and drain the bowl. Dont just spray them off with carb clean. Soak the jets in parts cleaner or carb clean, take a sewing needle and use it to clean in side the jets.Then take some compressed are and blow out all the jets and all the ports holes and so on. Also dran all that old moon shine out off your tank and replace it with (gas). P.S check your pet cock is on.
knucklehead459 said:rings might be shot they are pretty easy to kick over stock
LoudFastUgly said:Worn or collapsed rings are not the cause of your problem.
The only way for air to come back out of your air filter is:
The intake valve is open when it should be closed. This is confirmed by low compression (easy to kick over). I suspect you have a much more serious problem than carburetor.
Remove the crankcase timing cover and the head timing cover (the round one), remove spark plug.
Inside the head timing cover you'll note a notch on the left, on the camshaft sprocket you will find an "O" mark. Using the flywheel, rotate the "O" mark to the notch. Get as you can. Note the timing mark on the crankcase (smaller notch than in the head, but still readily identifiable). There are two markings on the radius of the flywheel, T & F. Is the T in line with the notch/timing mark?
If no, your timing chain may have skipped - possibly leading to bent valves (low compression, air through filter, easy to kick over). Let us know.
Kurlon said:Just for giggles check the valves for clearance. I've revived a couple 'dead' 70s in people's yards with a pair of pliars by getting a little clearance. All of a sudden the bike comes back to life.
Kurlon said:Just for giggles check the valves for clearance. I've revived a couple 'dead' 70s in people's yards with a pair of pliars by getting a little clearance. All of a sudden the bike comes back to life.
LoudFastUgly said:+1 Good point! Check this first. Clearance should be .002" to .004", set them to the loose side.