Jiffy 30 running issue

[mattLi]

So I have a Jiffy 30 ice and it doesn't run very good it dies out when you are cutting a hole and runs rough and also it takes 4 or 5 pulls to get it started I took the carb apart and cleaned it but i cant set the low speed idle screw because it is capped is there a reason that it is like that?

[Richj]

Im gonna say the low speed isnt the issue. The carb is likely dirty somewhere. You should get it fired up and have someone else hold the throttle wide open while you adjust the high speed. Adjust slow til you get a highest max rpm then back off a bit so you wont run it to a lean condition. How old is the auger?

[mattLi]

I think it was the last year before the legends so like 06-09? so are they just set from the factory then and you just adjust the high speed screw

[Richj]

Yes.....The low speed will strictly handle idle quality. Your high speed will handle transition mof mid to wide open, and wide open throttle. Make sure its tuned from a cold start temp that youll be fishing in also, as the cold air is more dense, making the air to fuel a bit leaner. Get too lean and it cant cool itself resulting in damage to the piston or rings.

[Bass Whacker]

When mine would start to die when cutting holes the fuel pump diaphragm was usually on its way out.  Ethanol makes the diaphragm stiff and it struggles to keep up to the fuel demands at wide open.  Was it changed when you had the carb apart the first time?  With there only being a idle mixture needle you may have debris in the passage that you will not be able to get out unless you pull the cap and the mixture needle.  The other option is drop it off at a small engine shop to have them run it through a sonic cleaner. 

If you choose to do it yourself, the cap is easy to remove by drilling a small hole in the center and prying it out with a pic.  Before removing the mixture screw count the turns it takes to just bottom it out(do not crank it down tight).  This will give you a good starting point when readjusting after you finish cleaning.

[BoxMN]

FYI - my SM wasn't running worth dump. I cleaned the carb twice, thought I did a good job. But it was only after putting a new carb kit in that it started running again. So maybe try a $12 kit with a cleaning and then tuning it (cold) might be good idea. Good luck.

[mattLi]

So I ordered a carb kit and put it in last night and it fired right up and runs great now one thing I did notice was that the diaphragm was installed below the gasket witch was wrong it had a F marked in the casting so it should have been above the gasket. I am thinking this is why it was starving for fuel.