motor pops and dies barely starts! help?

matt9923

Chief Petty Officer
Joined
Sep 6, 2008
Messages
421
I had it running up to 1/2 throttle yesterday so though it maybe needed a carb cleaning now it wont start easy. I pull it 5 times and then it randomly starts. Its getting a great spark, new coils points ext... all new electrical. Now as i adjust the low speed t pops and makes a air smoke release from the leaf valve area. Not exactly sure. The needles look all chewed up and i sanded the scratches lightly o they don't screw up my carb.
Could this be leaf valves, carb? I don't know where to get leaf valves, new carb, carb needles. So i don't know what to do? its something mechanical not any adjustment. i tried adjusting everything adjustable and i had them set to factories settings. Anyone know what this is? i have no clue at this point iv never had this problem with a motor before?
Matt
 

Xcusme

Commander
Joined
Apr 21, 2003
Messages
2,888
Re: motor pops and dies barely starts! help?

Matt,

It would help if you would post the Make and Model of the motor...
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: motor pops and dies barely starts! help?

The adjustable needle valve must be perfect. The slightest groove makes an adjustment impossible.

Have the needle valve in a drill press or a high speed electric drill, then use a file to dress up the taper to its original condition.
 

matt9923

Chief Petty Officer
Joined
Sep 6, 2008
Messages
421
Re: motor pops and dies barely starts! help?

Johnson 33hp 1970 or 71. Do you know where to get new needles. ?
 
Top