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Main Area => General GS500 Discussion => Topic started by: JoChan23 on March 16, 2006, 02:15:34 PM

Title: PFFFFT sound?
Post by: JoChan23 on March 16, 2006, 02:15:34 PM
It sounds like a gush of air 'PPFFFFFTTT' comes out somewhere around the carbs/cylinders right after the engine chugs.   Boy i know that sounds like a terrible description lol
It sounds like chug pfft chug pfft

Any Clue?

- Jordan
Title: Re: PFFFFT sound?
Post by: natedawg120 on March 16, 2006, 02:30:00 PM
are you smelling fuel when you are hearing this smell?
Title: Re: PFFFFT sound?
Post by: JoChan23 on March 16, 2006, 02:32:46 PM
No, not any more than usual

i thightened the two rings on the tubes that go from the carbs to the cylinders, no difference

- Jordan
Title: Re: PFFFFT sound?
Post by: mjm on March 16, 2006, 02:33:26 PM
Could be a loose spark plug.
Title: Re: PFFFFT sound?
Post by: JoChan23 on March 16, 2006, 02:34:49 PM
hmmm good call ill go check

- Jordan
Title: Re: PFFFFT sound?
Post by: coll0412 on March 16, 2006, 02:42:50 PM
also check the vacuum caps on the top of the carbs to see if one is cracked or gone entirely
Title: Re: PFFFFT sound?
Post by: natedawg120 on March 16, 2006, 02:45:47 PM
also when was the last time you check the valves?  You might be getting a llittle blow back through the carbs.
Title: Re: PFFFFT sound?
Post by: Wrecent_Wryder on March 16, 2006, 04:02:24 PM
43c
Title: Re: PFFFFT sound?
Post by: weaselnoze on March 16, 2006, 04:44:17 PM
haha i LOVE it when people try to describe sounds they hear  :laugh:
Title: Re: PFFFFT sound?
Post by: makenzie71 on March 16, 2006, 05:14:57 PM
This is valves.  I know what you're hearing...I have it on my TL.
Title: Re: PFFFFT sound?
Post by: JoChan23 on March 16, 2006, 05:43:14 PM
ok, if it is the valves.. is that bad.. besides annoying?
i can live with the sound, but not if it is causing damage

-Jordan
Title: Re: PFFFFT sound?
Post by: makenzie71 on March 16, 2006, 05:47:54 PM
damaging?  not really.  Serious hinderence to performance?  Wear accellerator?  Potentially dangerous?  Bad idea to keeo?  Yeah.

A good dlr will be able to do a valve check and adjust for under $400.  The one I'm htting up for my TL claims $300 + cost of shims, or $150 if I just take them the motor.  I'd suggest having it checked.
Title: Re: PFFFFT sound?
Post by: Mandres on March 16, 2006, 07:41:56 PM
Quote from: makenzie71 on March 16, 2006, 05:47:54 PM
A good dlr will be able to do a valve check and adjust for under $400. 

Wow, screw that.  It's like a 45 minute job if you have everything you need close at hand.  Download the video that Kerry made (it's floating around somewhere, do a search) and follow along.  You'll need a dial caliper, metric feeler gauge, and a tool to depress the shim bucket (about $30 online). 
Title: Re: PFFFFT sound?
Post by: pantablo on March 16, 2006, 07:51:27 PM
Quote from: makenzie71 on March 16, 2006, 05:47:54 PM
or $150 if I just take them the motor.

I just want to highlight this one more time....
Title: Re: PFFFFT sound?
Post by: weaselnoze on March 16, 2006, 08:01:47 PM
Quote from: pantablo on March 16, 2006, 07:51:27 PM
Quote from: makenzie71 on March 16, 2006, 05:47:54 PM
or $150 if I just take them the motor.

I just want to highlight this one more time....

lol seriously. but for mak thats no big deal. he lives for that shaZam!  :laugh:
Title: Re: PFFFFT sound?
Post by: makenzie71 on March 16, 2006, 08:06:31 PM
What?  You can drop the motor in like 30 minutes...lol.  I'm doing that with my TL for reason to strip that stupid paint off my frame.

(...and I despise dealing with valve shims myself...)
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