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General Category >> Rubber Side Down! >> Big Trouble Or Just Paranoia?
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Message started by IrishSavage on 07/14/14 at 15:11:46

Title: Big Trouble Or Just Paranoia?
Post by IrishSavage on 07/14/14 at 15:11:46

My engine has started making these loud hacking noises and I wonder if somebody could give me a clue of what it could be?
Thanks!

https://www.youtube.com/watch?v=R63Viioumic&feature=youtu.be

Title: Re: Big Trouble Or Just Paranoia?
Post by Yoshi on 07/14/14 at 15:18:53

that sound is definitely different!

What year?
Whats the mileage?
Whats been done to the bike?

What was the last thing you did to the bike?

Sounds like the decompression valve stuck open but would it run..

Title: Re: Big Trouble Or Just Paranoia?
Post by BalingWire on 07/14/14 at 15:50:27

Decompression Solenoid Adjustment
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1169356966

Title: Re: Big Trouble Or Just Paranoia?
Post by Steve H on 07/14/14 at 16:00:19

It would probably run with the decomp activated but would be very low on power. It would probably burn the valves pretty quickly if ridden too.

Combustion gasses slipping by the valves when they shouldn't be can cause lots of damage.

Did it suddenly start or begin after you did something to the bike?

Check the decomp adjustment.

Can you isolate where the sound is coming from or is loudest?

Title: Re: Big Trouble Or Just Paranoia?
Post by justin_o_guy2 on 07/14/14 at 16:14:49

Have you clicked the link and listened? If that's really what it sounds like,you're not paranoid. I'd be doing some real close listening to that thing and wouldn't be out riding till I had it fixed.

Title: Re: Big Trouble Or Just Paranoia?
Post by Kris01 on 07/14/14 at 19:22:06

Decomp sounds like a good guess to me. Have you checked the exhaust for a leak? Could be as simple as tightening your header.

Title: Re: Big Trouble Or Just Paranoia?
Post by Dave on 07/15/14 at 04:25:57

427B607A3938090 wrote:

Have you checked the exhaust for a leak? Could be as simple as tightening your header.

Be careful with this one.....don't get too aggressive with the header bolts. They should be no tighter than what you can do with a 1/4" drive ratchet with your palm on the pivot point of the wrench....not 2 fisted tightening. The header bolts are easily broken, and should be removed occasionally and anti-sieze applied.

You can check for exhaust leaks using an incense stick, a cigarette, or a match that is freshly extinguished and still smoking. While the bike is idling move the smoke around the exhaust and head and watch for the smoke to be blown (puffs) away from the exhaust. You might also check the head gasket....you could possibly be the first one to have a leaky head gasket.

Dave

Title: Re: Big Trouble Or Just Paranoia?
Post by justin_o_guy2 on 07/15/14 at 07:46:46

A piece of skinny hose jammed in your ear helps.
A rod stuck in the hose makes listening to the motor guts a lot easier
When my wife gets a new stethoscope I keep the old one. A little bit of time and effort and,presto,mechanics stethoscope.

Title: Re: Big Trouble Or Just Paranoia?
Post by IrishSavage on 07/17/14 at 23:39:34

The year is 1998, it's gone 32 000 km. This Xmas I removed the muffler and replaced it with a Dyna Screaming eagle. I only changed the muffler and did not mess with carburator and jets. I also had a little oil leak from the cylinder and changed a caphead and it fixed it. The bike runs fine and it's only this last week the horrible sounds came. Bike still runs fine. Guess I just gotta open up and have a look.

Title: Re: Big Trouble Or Just Paranoia?
Post by verslagen1 on 07/18/14 at 08:20:18

Have you checked your cam chain?