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I have a older (1997) Husqvqrna 22L line trimmer that I have rebuilt. I replaced the piston assembly (piston,rings,wrist pin and bearing). I also replaced the carbuetor with a new one. I can't get it to run!! The limiter caps have been removed from the jets, and I have misplaced them. I can get it to start and by playing with the choke I can keep it running. If I release the choke it revs up, then stalls out as if it is not getting gas or been choked. For initial set up, where should the jets be set? I started at 1-1/4 turns out on both the high and low, but I got nowhere! Should I back the "T" screw all the way off? Thanks for your help!

47 views and no replies? Can nobody give a man some help?? I am about to pull my hair out!!! LOL

Sounds like it is not getting enough fuel. Some of the newer 2 cycles may run as much as 2 1/2 turns out. So keep adjusting them out and see what happens.

ILENGINE said:

Sounds like it is not getting enough fuel. Some of the newer 2 cycles may run as much as 2 1/2 turns out. So keep adjusting them out and see what happens.

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Thank you for your reply! This is a 15 year old machine but rebuilt. It has the original fuel filter (new one on order), but I cleaned it real good and it seems to be working ok. I replaced the fuel line, but can only get the yellow line, which to me seems to have a much smaller ID than the original clear tubing. Could the smaller ID of the fuel line be causing fuel restriction?

The fuel requirements shouldn't be that heavy where a line restriction would be the problem. Would have to be a very small passage. I have seen fuel filters have more restriction than what a person would think. Can you blow through it, or get carb cleaner to go through the filter.

ILENGINE said:

The fuel requirements shouldn't be that heavy where a line restriction would be the problem. Would have to be a very small passage. I have seen fuel filters have more restriction than what a person would think. Can you blow through it, or get carb cleaner to go through the filter.

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Yes, I can blow through it, but with difficulty. I have a new one ordered, should be here today or tomorrow.

rbthud said:

Yes, I can blow through it, but with difficulty. I have a new one ordered, should be here today or tomorrow.

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Did you put carb kit in by chance,if you did i missed that.I have same machine,never had to rebuild engine but have had to rebuild carb few times,new filter,plug, lines also.Best i rem.1 1\4 turns on adj.screws got it started and adjusted from there to make it run right,I now run dry at end of every use.Thanks,Paul

aka rotten said:

Did you put carb kit in by chance,if you did i missed that.I have same machine,never had to rebuild engine but have had to rebuild carb few times,new filter,plug, lines also.Best i rem.1 1\4 turns on adj.screws got it started and adjusted from there to make it run right,I now run dry at end of every use.Thanks,Paul

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Paul I put a brand new carb on it!

strong spark? my ryobi magneto finally pooped out with no apparent reason. spark should jump 1/8" outside head

motoman said:

strong spark? my ryobi magneto finally pooped out with no apparent reason. spark should jump 1/8" outside head

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Very strong spark. I will wait untill new fuel filter arrives and try again. I will report back.

Does it have a primer bulb, and how does it look? If it is full of debris inside you wont be able to see it if you re-used the old one. The only other thing could be the gasket not mating to the engine between the carb, or as mentioned the fuel filter is clogged.

wjjones said:

Does it have a primer bulb, and how does it look? If it is full of debris inside you wont be able to see it if you re-used the old one. The only other thing could be the gasket not mating to the engine between the carb, or as mentioned the fuel filter is clogged.

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HAHA thats it!!! There is no primer bulb on this model, nor a gasket. BUT there is a plastic guide that I didn't put back on the unit!!! See pic below! Thank you kind people for your help. I will be tearing it back down when the weather improves and will report back with the results!!!!

Well I put in the guide and still not running. I'm thinking now it's the filter for sure. It still hasn't arrived so I will have to wait. Sometimes I hate living in a town that has nothing but a grocery!!!

Ill , shouldnt the new carb come set from the factory good enough to get it running? did you try the fuel vent or the gas cap?