SuzukiSavage.com - 2009 Boulevard bogging down and dying

wernwilk

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Re: 2009 Boulevard bogging down and dying
Reply #30 - 10/21/12 at 16:49:03

Guys,

firstly it seems I have upset some people on here by having multiple threads, for that I aplogize. I am not familiar with forum to be honest.

Back to the latest suggestions.
I have had the carb apart and cleaned out thoroughly and am positive there is nothing in the carb but gas.
The Flow from the new raptor petcock is good to the eye, (not very scientific I know), when the carb bowl drain is open and the petcock is on the flow is good.

The emissions are at present all disconnected and the carb inlet blanked off. The breather pipe for the gas tank is removed for testing also.

It is only at when the bike is in top gear and has been at WOT for a minute that the problem occurs....that made me think of fuel starvation as if the carb bowl can not fill up enough at WOT to keep up with demand.
The bike coughs dies and when I roll to a halt the engine will idle and run after a matter of seconds.

Apart from supply and float level I am a bit stuck to be honest.
I will be trying the electrical cutouts (side stand and clutch) to rule them out also but the its odd that this would only happen at WOT.

Its very frustrating to say the least.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: 2009 Boulevard bogging down and dying Reply #31 - 10/21/12 at 17:16:26 Look in the tech section for Serowbots petcock test. Go step by step. From what Ive heard, it is a very comprehensive, well thot out test.
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Serowbot

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Re: 2009 Boulevard bogging down and dying
Reply #32 - 10/21/12 at 17:28:40

justin_o_guy2 wrote on 10/21/12 at 17:16:26:

Look in the tech section for Serowbots petcock test. Go step by step. From what Ive heard, it is a very comprehensive, well thot out test.

He's got a Raptor on it now... so, flow shouldn't be a problem...
(This is why we like all the info flowing in one thread... nobody's upset... we just cornfuzed Grin

..)..

When you cleaned the carb,.. did you take the top off, and clean the silde?... they tend to gunk sometimes and get sticky...
Huh

...

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wernwilk

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Re: 2009 Boulevard bogging down and dying
Reply #33 - 10/21/12 at 18:00:44

Just been out with the clutch and sidestand switches taken out of the loop to eliminate them.
Still the same result, WOT about 85mph and it dies, like its run out of gas....it does not stop the motor and when clutched it will cough, stumble and pick back up again after a couple of seconds...then the bike seems to run ok again aside from the odd pop here and there that was not there before the cut out.

I've had the slide out a couple of times....it all seemed nice and free.
I removed the plastic washer while I was in there last time and it all seemed good as did the diaphram.

Does anyone else think perhaps float height/fuel level?

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wernwilk

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Re: 2009 Boulevard bogging down and dying
Reply #34 - 10/21/12 at 18:05:33

as I mentioned, my friend had an engine swap on this bike due to excessive metal fillings present in the top end. He swears that the bike did not show any of these problems before the change and that the problem has been becoming more and common with time.
The gas cap always gave that little squeek even before the engine switch and its all been stripped and was spotless in there.
otherwise I would suspect the cap for sure, when the bike has died before I have tried it with the cap on and off with the same result.

Just some extra info. for the problem.

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justin_o_guy2 Serious Thumper Offline What happened? Posts: 55279 East Texas, 1/2 dallas/la.	Re: 2009 Boulevard bogging down and dying Reply #35 - 10/21/12 at 18:27:19 Run it till it stumbles, shut the fuel off,Hit the kill switch, coast to a halt, Drain the bowl into a measuring cup. Find out how much fuel is in the bowl when it cuts out. Thats just me,, that mite be dumb, IDK..
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J C Stokes Full Member Offline SuzukiSavage.com Rocks! Posts: 159	Re: 2009 Boulevard bogging down and dying Reply #36 - 10/21/12 at 18:35:52 Does it run ok continuous at 75 to 80 mph indicated?
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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28375 Tucson Az Gender:	Re: 2009 Boulevard bogging down and dying Reply #37 - 10/21/12 at 19:03:12 Don't know how to fix it,... but I'm riveted to the thread... Can't wait to find out if it gets fixed before he gets a speeding ticket from all these 85mph test runs... ... Just had to say it... ...
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wernwilk

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Re: 2009 Boulevard bogging down and dying
Reply #38 - 10/21/12 at 19:38:18

Ha yes I too am worried I will get a ticket before its cured...the things you do for friends huh?

I do believe it runs ok and continuous at 70-80...it seems to be that last bit of time running wide open that kills it.

Is the running gas out of the float bowl the accepted way to measure the fuel level, if so how much should I be looking for?

Also, I think I am going to get back into the carb again tomorrow to double check everything and go through it one more time.

Can anyone tell me if the plastic floats are in anyway adjustable?

Thanks.

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J C Stokes Full Member Offline SuzukiSavage.com Rocks! Posts: 159	Re: 2009 Boulevard bogging down and dying Reply #39 - 10/21/12 at 21:09:16 Just being stupid, but have you removed the tank, put in 1/2 a gallon of petrol, put the cap on, turned the petcock off and sloshed hell out of the tank and drained quickly it through the cap. This is a try oysters try anything type of test.
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Serowbot

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Re: 2009 Boulevard bogging down and dying
Reply #40 - 10/21/12 at 23:27:52

As far as I am aware,.. all the floats are brass...
There is a niddly-piddly measurement,.. but,... basically, you just want to get them horizontal to the floatbowl plane... (that would be at the pivot point)...
There is no adjustment screw or anything... you just bend the contact tab that raises the float needle to adjust...

With the bowl removed, blow into the fuel line,...(you'll feel air passing through),.. then slowly raise the floats with your finger until your breath is blocked... that point should hold the floats horizontal at their pivot point, (no more no less).. or parallel with the top of the bowl...
Bingo... that be good... Grin

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wernwilk

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Re: 2009 Boulevard bogging down and dying
Reply #41 - 10/22/12 at 08:35:43

The floats are definitely plastic with all plastic fittings, I am familiar with the brass type that you adjust by bending the small tab....I am 99% sure there is no adjustment on this bike as the tab is even plastic.

I will do the horizontal check as suggested here.
When checking the fuel level as posted here previously, I assume you upright the bike, put the clear hose on the carb drain, open the screw and should get a reading level with the gasket surface on the carb?
Is this correct? If so and its not where it should be, how is it corrected or is this simply a measurement of how much fuel is getting into the float bowl via the petcock?

Also, regarding the suggestion of putting in 1/2 gallon of gas, sloshing the tank then draining out through the cap....is this to ensure the tank is clean? I was curious what this procedure was for?

BTW - the tank has been drained and cleaned out previously and was indeed clean to start with.

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Serowbot YaBB Moderator ModSquad Offline OK.... so what's the speed of dark? Posts: 28375 Tucson Az Gender:	Re: 2009 Boulevard bogging down and dying Reply #42 - 10/22/12 at 09:55:45 I'm beginning to wonder if you are dealing with an aftermarket carb... Can you post pics?... ...
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J C Stokes Full Member Offline SuzukiSavage.com Rocks! Posts: 159	Re: 2009 Boulevard bogging down and dying Reply #43 - 10/22/12 at 10:49:06 Ok, if you are sure the tank is clean don t worry about sloshing it.
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Re: 2009 Boulevard bogging down and dying
Reply #44 - 10/22/12 at 11:00:15

I wonder if you cleaned your carb - did you take out the filter that is on top of the seat for the float needle? It has not caused a problem for anyone yet - but you may be the first and this may be limiting the flow to your float bowl during high speed runs. It is part # 20 in the diagram with the link below:

http://www.hondaofflorence.com/fiche_section_detail.asp?section=432120&catego...

I have set my float to the prescribed level - and it does not come up to the gasket level. If I put a clear tube on the float drain my level is about 3/16" down from the gasket. I will take a picture of it tonight and post it......I don't think the float tab can be bent far enough to get the fuel level up to the gasket with the bike sitting level.

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