Found throt bog prob. no what?- air box - Honda Shadow Forums : Shadow Motorcycle Forum

jeff57 · 03-31-2012, 09:08 AM

'84 VT 700 >>After 2 carbs and many cleanings, even though I have oiled my filter, I find that if if partially block the air intake on the air box with a rag, it solves the prob. So ride with a rag stuffed in my box or ??

thanks

gordo2472003 · 03-31-2012, 09:22 AM

adjust your mixture screw? im still new to this whole bike thing but from what i read on here it sounds like you might be running to lean if im not mistaken.

PainterD · 03-31-2012, 10:54 AM

Your not going to get very good mileage with a rag stuck in there. Your better off to fix it right and make it run like it's supposed to. Your jetted too lean or something is seriously plugged up in the carbs.

jeff57 · 03-31-2012, 02:08 PM

So I'm pretty sure the carb is clean. Which jets would I need to change?
I have some extra ones that I can drill if that is what it needs.
Thanks

Lukeduck · 03-31-2012, 02:21 PM

Modified intake? Modified exhaust? If you got either or both you must jet accordingly. May require a bit of research on your part. Good luck with the project.

gmck · 03-31-2012, 02:31 PM

Check for air leaks at the carb boots. cracks and just leaks can do this. Is the air cleaner stock? you said that you oiled it and I was under the impression that most were paper. If foam did you use the right kind of oil? I changed my paper to uni foam and have found I need 2 layers of foam to keep it as happy as the paper.

jeff57 · 03-31-2012, 02:45 PM

Yes it has modified pipes and paper filter with foam . It was running fine until it sat up and I re-cleaned/soaked the carb. never has come back. got a second carb and pretty much the same. it has 120 and 40 jets.
Compression good.
fuel pump full flow.
float is set at 7.5mm -- should it be 7mm?
new float needles.
What is the correct oil for the foam?
I have found that if I disconect and reconect the fuel pump. It doesnt bog for a second. then goes back to bog.
I disconected the fuel pump and simply blew on the fuel line with some fuel in it( put positive pressure on it) and the same thing happens doesnt bog.
Any help please.

jeff57 · 03-31-2012, 02:47 PM

forgot; also sprayed around boots. no leaks

chazglenn3 · 03-31-2012, 03:58 PM

My manual says to use gear oil for the filter.

tf43 · 03-31-2012, 07:46 PM

found on my VT600 that my fuel pump relay was acting up on/off
If I jump the two wires on the fuel pump relay, problem would go away, and fuel pump would pump fuel like it should. If the relay doesn't always work properly the fuel pump won't either, so right now I am riding with the fuel pump relay jumped, and looking again for another relay...not sure if that is part of your problem or not, but worth a mention I suppose - Terry

03-31-2012, 09:08 AM	#1 (permalink)
jeff57 Junior Member Join Date: Mar 2009 Posts: 28	Found throt bog prob. no what?- air box '84 VT 700 >>After 2 carbs and many cleanings, even though I have oiled my filter, I find that if if partially block the air intake on the air box with a rag, it solves the prob. So ride with a rag stuffed in my box or ?? thanks

03-31-2012, 09:22 AM	#2 (permalink)
gordo2472003 Senior Member Join Date: Feb 2012 Location: marysville,Ca Posts: 362	adjust your mixture screw? im still new to this whole bike thing but from what i read on here it sounds like you might be running to lean if im not mistaken. __________________ "Layde" , my 86 VT700

03-31-2012, 10:54 AM	#3 (permalink)
PainterD Senior Member Join Date: Jan 2004 Location: Central, Minnesota Posts: 7,530	Your not going to get very good mileage with a rag stuck in there. Your better off to fix it right and make it run like it's supposed to. Your jetted too lean or something is seriously plugged up in the carbs. __________________

03-31-2012, 02:08 PM	#4 (permalink)
jeff57 Junior Member Join Date: Mar 2009 Posts: 28	which jets? So I'm pretty sure the carb is clean. Which jets would I need to change? I have some extra ones that I can drill if that is what it needs. Thanks

03-31-2012, 02:21 PM	#5 (permalink)
Lukeduck Senior Member Join Date: Sep 2011 Location: Ontario, Ca. Posts: 479	Modified intake? Modified exhaust? If you got either or both you must jet accordingly. May require a bit of research on your part. Good luck with the project. __________________ Come to terms with the ass that bears you/ 07 CB250/ 07 1100 Spirit with Velorex sidecar

03-31-2012, 02:31 PM	#6 (permalink)
gmck Senior Member Join Date: Sep 2008 Location: Phoenix Posts: 1,275	Check for air leaks at the carb boots. cracks and just leaks can do this. Is the air cleaner stock? you said that you oiled it and I was under the impression that most were paper. If foam did you use the right kind of oil? I changed my paper to uni foam and have found I need 2 layers of foam to keep it as happy as the paper.

03-31-2012, 02:45 PM	#7 (permalink)
jeff57 Junior Member Join Date: Mar 2009 Posts: 28	Yes it has modified pipes and paper filter with foam . It was running fine until it sat up and I re-cleaned/soaked the carb. never has come back. got a second carb and pretty much the same. it has 120 and 40 jets. Compression good. fuel pump full flow. float is set at 7.5mm -- should it be 7mm? new float needles. What is the correct oil for the foam? I have found that if I disconect and reconect the fuel pump. It doesnt bog for a second. then goes back to bog. I disconected the fuel pump and simply blew on the fuel line with some fuel in it( put positive pressure on it) and the same thing happens doesnt bog. Any help please.

03-31-2012, 02:47 PM	#8 (permalink)
jeff57 Junior Member Join Date: Mar 2009 Posts: 28	forgot; also sprayed around boots. no leaks

03-31-2012, 03:58 PM	#9 (permalink)
chazglenn3 Member Join Date: Jul 2008 Location: Tacoma, WA, USA Posts: 74	My manual says to use gear oil for the filter. __________________ Charles 1985 VT700C Shadow 1983 VF1100C V65 Magna 1993 ST1100A - gone 1982 VF750C - gone 1985 CB700SC - gone 1983 CB650SC - gone

03-31-2012, 07:46 PM	#10 (permalink)
tf43 Member Join Date: Sep 2011 Location: American Samoa Posts: 77	found on my VT600 that my fuel pump relay was acting up on/off If I jump the two wires on the fuel pump relay, problem would go away, and fuel pump would pump fuel like it should. If the relay doesn't always work properly the fuel pump won't either, so right now I am riding with the fuel pump relay jumped, and looking again for another relay...not sure if that is part of your problem or not, but worth a mention I suppose - Terry

Remove Advertisements Sponsored Links
HondaShadow.net Advertisement