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Post by mebrtc on Sept 21, 2008 3:34:08 GMT -5
Hello, I am just looking for opinions on my automatic 150... my mother in law bought it for me at a yard sale for $3. 5 mins after I got my hands on it I had it running with the gas that came with it. My question is, should I bother taking it apart and giving it a good going over, or should I 'let sleeping dogs lie'? Also, it is a red (orange?) 150... so what year might it be? I haven't looked at the model or serial # on it (I guess that might help eh?).
One more thing (honestly!), there are a couple of screws missing that, as far as I can tell, hold the two halves of the casing together. Should I run the saw without these in place, or will it be ok without.
Any feedback is greatly appreciated!
Thanks
M
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Post by MCS on Sept 21, 2008 21:40:27 GMT -5
The most common screws for falling out are the four that hold the red shell to the motor. There are two on top and two on the bottom.
If the saw runs, then I wouldn't go digging into it just for fun unless you want to restore it. Here are some things to check:
1. Fish the fuel line out of the tank with a piece of wire. If the line isn't mushy great otherwise look at replacing it. If it has an original fuel filter, you can pull the sleeve off the core and feel how hard it is. I've soaked them with carb cleaner and reused them.
2. Check the sprocket and see if the chain has worn deep grooves in it.
3. Clean the air cleaner.
4. Make sure it is using chain oil. Put some fresh gas in it and top off the oil tank. Cut for awhile and make sure it has used some chain oil.
5. If a 2 cycle engine starts, runs and idles there can't be much inside that is bad. You could check the spark plug I guess. If it seem like it won't wind up, there could be carbon buildup in the exhaust port. Most 150's don't have enough hours on them for this problem.
I use 2 cycle oil rate for 100 to 1 mixing and mix it 50 to 1 but this is my choice. The 150 was sold when 32:1 was Homelites recommendation.
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Post by mebrtc on Sept 22, 2008 2:47:38 GMT -5
Thanks alot for the replys... the saw does run really well. When I got it it hadn't been running for between 5-10 yrs according to seller. So the regular was done ie cleaned air filter, pulled chain and bar off and cleaned to make sure bar oil getting through, cleaned plug, new gas and go. The little bugger winds right out and will cut like crazy, however there are some pretty good grooves in the sprocket (should I replace?). I will check the fuel lines and filter.
The screws that are missing are the ones holding the casing on (one missing from the top and 2 from the bottom)... is this a big issue? I'm using a good quality mixing oil at approx. 40:1 (same as weed whacker), so I think it should be ok. I will check numbers on saw for sure to find out as much as I can about the saw (with your help of course)
Thanks again!
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Post by MCS on Sept 22, 2008 10:13:43 GMT -5
Take the one screw you have and head to the hardware store. These are standard US thread so you can find them. The original 150s had a large head straight slot screw but Homelite changed to a hex head with a slot. They are 10-24 x5/8".
The sprocket should be replaced when the next chain is installed.
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Post by lesorubcheek on Sept 22, 2008 14:31:37 GMT -5
When I read "hold the two halves of the casing together" my first thought was "oh no" its the bolts holding together the fuel tank housing. I love 150s, but the fuel tank housing is one area I don't like. In case anyone doesn't know, the fuel housing is supposed to be bonded together. No problem unless a leak develops. I had one with a leak that I was determined to repair and rung off half of the philips-head bolts trying to seperate the halves. They had to be drilled out and re-threaded. Any case, glad to hear its just the bolts holding the engine inside the housing. Much less of an issue to replace these.
Dan
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