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[Jeff Khoury]

I also agree that Seafoam is good stuff, BUT with a completely clogged pilot, there will be no flow of fuel through the pilot and therefore no way to get that stuff up there to dissolve the hard crust of varnish. I have an old Seca II which I bought from a guy who'd left it sitting with the petcock on and a full tank of gas for 3 years. A full tank had evaporated down to 1/8 tank of sickly-sweet smelling sludge. The slides were so varnised they had to be pried out with a screwdriver. The needles were also stuck to the sides of the needle jet and some of the internal passages were varnished shut as well. After cleaning the tank with Acetone and pea gravel, replacing the fuel filter and cleaning the vacuum-powered fuel pump, I went to work on the carbs. I disassembled the carbs and placed the pilots in a glass jar full of carb cleaner and left them overnight. The next morning, still nothing. I tried pressurized carb cleaner, compressed air... nothing. Finally I pushed a brass wire in. It stopped. Push. Push. Grabbed a pair of pliars... push... POP! Little chunks of brown varnish came out. I ran the wire through a few more times, wiggling it around to make sure I'd gotten it all. I then ran the wire through all the holes on the sides of the jet to make sure they were clear and open too. I drilled the tamper plugs and removed the idle mixture adjust screws and cleaned in there, too. Then I soaked again overnight. (x4) Now it runs like a champ. So yes, there are some (fairly) delicate brass parts in there, but a tiny scratch from running a wire through the jet won't affect it much (if any) - just try not to change the size of any of the holes. The things that I've seen that make a huge difference between running and not are more frequently the little rubber seals and o-rings. You lose one, or pinch it on re-assembly and you'll be pulling your hair out looking for the problem. -Jeff Khoury

----- Original Message ----- From: "Rick McCauley" To: "dsn klr650" dsn_klr650@yahoogroups.com> Sent: Tuesday, June 16, 2009 6:18:34 AM GMT -08:00 US/Canada Pacific Subject: Re: [DSN_KLR650] Re: hard starting and backfireing I agree. Seafoam is amazing stuff. BUT, nothing is better than draining the carb. I always drain the bowl before putting my bike away for the Winter. Even if my bike was going to sit for more than a couple weeks, I would drain the bowl. Today's gas breaks down rapidly. That may sound a little paranoid, but for the problems it can cause in that tiny pilot jet, I will be paranoid. It only takes 10 seconds to drain the bowl. Rick A17 --- On Tue, 6/16/09, Dooden < dooden@... > wrote: From: Dooden < dooden@... > Subject: [DSN_KLR650] Re: hard starting and backfireing To: DSN_KLR650@yahoogroups.com Date: Tuesday, June 16, 2009, 7:00 AM First thing I would do: Get Seafoam, read can ( Amazing stuff hey, it does everything ) now add some to the tank per the can as to how much. Shake bike around to get it mixed. Turn off fuel valve, drain carb bowl into a glass jar and see what came out, now turn fuel valve back on, apply a little vacuum (suck on vacuum line) to get fuel flowing to carb, with the drain screw still out watch to see fuel is flowing to carb, since the drain screw is still out and your jar is filling. Now let it flush with a little bit of fuel, put drain screw back in and suck on vacuum line to fill bowl, reattach vacuum line to petcock. Start bike and run long enough to get your mixed fuel through out the carb and let it sit overnight or a couple hours and restart. Hopefully the Seafoam has done the trick. Before storing the bike for winter add Seafowm to the tank and run it a few minutes to get that mixture in the carb, Seafoam is a stabilizer also unlike that StaBil (I never use that stuff) Second thing would be a tear down of the carb but that is way more hard to explain. Dooden A15 Green Ape --- In DSN_KLR650@yahoogro ups.com, "tgrosjea" wrote: > > Have a 2001 klr with about 8k . Since I took it out of winter storage this spring it has been real hard starting and backfires until its good and hot.fresh gas and plug did nothing. I adjusted valve clearance less than 1k ago. I am thinking about cleaning/rebuilding the carb next. any suggestions would be greatly appreciated. > [Non-text portions of this message have been removed] [Non-text portions of this message have been removed]

[dooden]

I add Seafoam to the gas before storage and in the spring just start my bike up. No Draining invovled (Sofar) Dooden A15 Green Ape

--- In DSN_KLR650@yahoogroups.com, Rick McCauley wrote: > > I agree. Seafoam is amazing stuff. BUT, nothing is better than draining the carb. I always drain the bowl before putting my bike away for the Winter. Even if my bike was going to sit for more than a couple weeks, I would drain the bowl. Today's gas breaks down rapidly. That may sound a little paranoid, but for the problems it can cause in that tiny pilot jet, I will be paranoid. It only takes 10 seconds to drain the bowl. > > Rick > A17 > > --- On Tue, 6/16/09, Dooden wrote: > > > From: Dooden > Subject: [DSN_KLR650] Re: hard starting and backfireing > To: DSN_KLR650@yahoogroups.com > Date: Tuesday, June 16, 2009, 7:00 AM > > > > > > > > > First thing I would do: > > Get Seafoam, read can ( Amazing stuff hey, it does everything ) now add some to the tank per the can as to how much. > > Shake bike around to get it mixed. > > Turn off fuel valve, drain carb bowl into a glass jar and see what came out, now turn fuel valve back on, apply a little vacuum (suck on vacuum line) to get fuel flowing to carb, with the drain screw still out watch to see fuel is flowing to carb, since the drain screw is still out and your jar is filling. Now let it flush with a little bit of fuel, put drain screw back in and suck on vacuum line to fill bowl, reattach vacuum line to petcock. > > Start bike and run long enough to get your mixed fuel through out the carb and let it sit overnight or a couple hours and restart. > > Hopefully the Seafoam has done the trick. > > Before storing the bike for winter add Seafowm to the tank and run it a few minutes to get that mixture in the carb, Seafoam is a stabilizer also unlike that StaBil (I never use that stuff) > > Second thing would be a tear down of the carb but that is way more hard to explain. > > Dooden > A15 Green Ape > > --- In DSN_KLR650@yahoogro ups.com, "tgrosjea" wrote: > > > > Have a 2001 klr with about 8k . Since I took it out of winter storage this spring it has been real hard starting and backfires until its good and hot.fresh gas and plug did nothing. I adjusted valve clearance less than 1k ago. I am thinking about cleaning/rebuilding the carb next. any suggestions would be greatly appreciated. > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] >

[Rick McCauley]

Not worth the risk to me. So simple to drain the carbs, which also ensures that there are no impurities that may be sitting at the bottom of the bowl. CV carbs hide minor carb problems..... for a while. Rick A17

--- On Tue, 6/16/09, Dooden wrote: From: Dooden Subject: [DSN_KLR650] Re: hard starting and backfireing To: DSN_KLR650@yahoogroups.com Date: Tuesday, June 16, 2009, 11:40 AM I add Seafoam to the gas before storage and in the spring just start my bike up. No Draining invovled (Sofar) Dooden A15 Green Ape --- In DSN_KLR650@yahoogro ups.com, Rick McCauley wrote: > > I agree. Seafoam is amazing stuff. BUT, nothing is better than draining the carb. I always drain the bowl before putting my bike away for the Winter. Even if my bike was going to sit for more than a couple weeks, I would drain the bowl. Today's gas breaks down rapidly. That may sound a little paranoid, but for the problems it can cause in that tiny pilot jet, I will be paranoid. It only takes 10 seconds to drain the bowl. > > Rick > A17 > > --- On Tue, 6/16/09, Dooden wrote: > > > From: Dooden > Subject: [DSN_KLR650] Re: hard starting and backfireing > To: DSN_KLR650@yahoogro ups.com > Date: Tuesday, June 16, 2009, 7:00 AM > > > > > > > > > First thing I would do: > > Get Seafoam, read can ( Amazing stuff hey, it does everything ) now add some to the tank per the can as to how much. > > Shake bike around to get it mixed. > > Turn off fuel valve, drain carb bowl into a glass jar and see what came out, now turn fuel valve back on, apply a little vacuum (suck on vacuum line) to get fuel flowing to carb, with the drain screw still out watch to see fuel is flowing to carb, since the drain screw is still out and your jar is filling. Now let it flush with a little bit of fuel, put drain screw back in and suck on vacuum line to fill bowl, reattach vacuum line to petcock. > > Start bike and run long enough to get your mixed fuel through out the carb and let it sit overnight or a couple hours and restart. > > Hopefully the Seafoam has done the trick. > > Before storing the bike for winter add Seafowm to the tank and run it a few minutes to get that mixture in the carb, Seafoam is a stabilizer also unlike that StaBil (I never use that stuff) > > Second thing would be a tear down of the carb but that is way more hard to explain. > > Dooden > A15 Green Ape > > --- In DSN_KLR650@yahoogro ups.com, "tgrosjea" wrote: > > > > Have a 2001 klr with about 8k . Since I took it out of winter storage this spring it has been real hard starting and backfires until its good and hot.fresh gas and plug did nothing. I adjusted valve clearance less than 1k ago. I am thinking about cleaning/rebuilding the carb next. any suggestions would be greatly appreciated. > > > > > > > > > > > > > > > > > > > > > > [Non-text portions of this message have been removed] > [Non-text portions of this message have been removed]

[Cindy & Wayne Burner]

I like using mono fishing line, there is a wide variety of sizes available. I remove all the jets , and while I'm taking apart the rest of the carb, I let the jets soak in a baby food jar with some carb lean in it. I also have a small piece of braided stainless electrical wiring wire,that I use a single strand at a time, as a last ditch for poking those stubborn clogs. Seafoam is some great stuff, pour it in ,let it soak, drain , flush, refill with gas, and hope for the best. It is my final act of Voodoo before I will pull a carb or a bank of carbs. Ever pull a set of carbs from and older inline four cylinder? This is no regular snake oil folks! Check it out. Wayne(rice)Burner bike week in NH

[Rick McCauley]

Yes, I have pulled 4 cylinder carbs off. I imagine there are worse out there, but my worst experience was on a 83 (i believe) Kawasaki 550 LTD. You absolutely had to take the entire airbox out, but the carbs were in the way of removing the airbox. I don't remember exactly how I managed to get them out, but I do remember that putting them in was even worse. Rick A17

--- On Tue, 6/16/09, Cindy & Wayne Burner wrote: From: Cindy & Wayne Burner Subject: Re: [DSN_KLR650] hard starting and backfireing To: "Michael Martin" Cc: DSN_KLR650@yahoogroups.com Date: Tuesday, June 16, 2009, 1:07 PM I like using mono fishing line, there is a wide variety of sizes available. I remove all the jets , and while I'm taking apart the rest of the carb, I let the jets soak in a baby food jar with some carb lean in it. I also have a small piece of braided stainless electrical wiring wire,that I use a single strand at a time, as a last ditch for poking those stubborn clogs. Seafoam is some great stuff, pour it in ,let it soak, drain , flush, refill with gas, and hope for the best. It is my final act of Voodoo before I will pull a carb or a bank of carbs. Ever pull a set of carbs from and older inline four cylinder? This is no regular snake oil folks! Check it out. Wayne(rice)Burner bike week in NH [Non-text portions of this message have been removed]

[Bob Thompson]

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