Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

[Phototone]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

Thanks. I think I discovered something that may be a problem with using the shut-off kit. When I looked at the kits yesterday I noticed that they were 1/4" ID, well, I looked up the actual Lawn-Boy fuel line #612782 and according to the pic on this parts site it's 3/16" ID (I think). If that's the case wouldn't that make the shutoff from the kit difficult to install with the existing fuel line or make the new fuel line too big to fit snugly on the fuel tank and carburetor nipples?

On the SilverPro series (as well as many others) the nipples on the gas tank and carb are slightly tapered. You can fit your 1/4" hose just fine. Use the clamps if loose.

 

[jp1961]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

I had similar problems with my 1999 Duraforce. I was on the verge of replacing the mower. I removed the carb, replaced the needle and seat and thoroughly cleaned the exterior of the carb. The mower now runs better than new. Bought a fuel shutoff from Meijer's.

Jeff

 

[dewguy1999]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

On the SilverPro series (as well as many others) the nipples on the gas tank and carb are slightly tapered. You can fit your 1/4" hose just fine. Use the clamps if loose.

Thanks. I guess I could do that, I'd just be happier with it if it was the proper size.

I had similar problems with my 1999 Duraforce. I was on the verge of replacing the mower. I removed the carb, replaced the needle and seat and thoroughly cleaned the exterior of the carb. The mower now runs better than new. Bought a fuel shutoff from Meijer's.

Thanks. I've also given consideration to getting a new mower but don't really want to give up the Lawn-Boy. I learned earlier in this thread that the needle and seat are my problem as well it's just that I've never done that kind of thing before and besides not knowing where to begin I'm afraid I'd mess things up. The fuel shutoff was suggested as a "quick fix" and I think it's something I can handle. Dang, I was at Meijer yesterday as well and didn't think of looking for a shut-off there. Did you reuse your existing fuel line with the shut-off? Was it a 1/4" shut-off and did you use the straight or right angle variety?

 

[jp1961]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

It's straight. I wouldn't reuse the original fuel line.

Jeff

 

[dewguy1999]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

It's straight. I wouldn't reuse the original fuel line.

Thanks. Did you use a 1/4" ID fuel line? Did you need to use clamps on fuel tank and carburetor ends of the line?

 

[jp1961]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

I didn't use any clamps, doesn't leak with out them. If you remove the carb, it's best to take a detailed picture before starting any work. I also live in Michigan (greater Detroit area), if you get in a bind and live near Detroit, I could help.

Jeff

 

[dewguy1999]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

I didn't use any clamps, doesn't leak with out them. If you remove the carb, it's best to take a detailed picture before starting any work. I also live in Michigan (greater Detroit area), if you get in a bind and live near Detroit, I could help.

Jeff

Thanks. Good to hear that clamps probably aren't needed as the connection on the carb seems like it would be hard to get a clamp on. If I decide to tackle the carb, I'll definitely be taking lots of pics and thanks for the offer of help but I'm 100+ north of Detroit.

 

[dewguy1999]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

Decided to go with a right-angle shut off valve, so I ordered one along with a piece of 1/4" ID fuel line on eBay and it should be here by the weekend. I'll let everyone know how it turns out. Thanks for all the help.

 

[beg]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

good choice on the right angle valve use the original line like I said earlier you have to cut it at the bend in the line and take 1/4 inch of of the piece going to the carb.If you take the carb off to replace the needle and seat be sure not to strecth the govenor spring or you will have a whole new set of issues.A little oil on the hose makes it easier to slip on and clamps are not needed.

 

[dewguy1999]

Re: Help: Lawn-Boy 21" SilverPro Series, 10247, DuraForce (2-cycle) behaving badly

good choice on the right angle valve use the original line like I said earlier you have to cut it at the bend in the line and take 1/4 inch of of the piece going to the carb.If you take the carb off to replace the needle and seat be sure not to strecth the govenor spring or you will have a whole new set of issues.A little oil on the hose makes it easier to slip on and clamps are not needed.

Thanks. I had heard of warming hoses/tubes to help get them on fittings, but had never heard about using oil before, I'll keep that in mind. I don't know when I'll work on the carb, but I'm pretty sure I will do it...eventually. I know I can take it apart and most likely put it back together, but what I have to get past is the fear of damaging something or not doing it correctly. I've download the parts list and the "E" engine service manual and read over the carburetor section a couple of times so I now at least have a understanding of what everyone is talking about. When I get to the carb cleaning/rebuilding I think I'll post a new thread because I'm sure I'll have questions. Thanks for the warning about the governor spring, that's the kind of thing I'm afraid of doing.