name that noise

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

what the hell is making this noise of my vfr400 (the ticking noise you can hear) or do all of these bikes do it. the bikes running ok apart from a bog down if you fully open the throttle from first (gudders a bit) while doing this, apart from that its ok. note the carb hunting tho.

please help its driving me Evil or Very Mad

McGee · O RLY? Joined: 24 Jun 2005 Karma :

Valves need adjusting ?
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Its pronounced Jixxer!

map · Mr Calendar Joined: 14 Jun 2004 Karma :

Can't listen at the moment.

However, the symptoms you describe I'd be thinking tapet (i.e as McGee said, valve) adjustment plus syncing the carbs.
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craigs23 · Mr Muscle Joined: 08 Jun 2005 Karma :

Exhaust leaking near the headers?

Shaun · Likes 'em bent Joined: 17 May 2003 Karma :

Might not be the valves, might be the exhaust headers tapping, are the downpipes in good condition?

0ddball · World Chat Champion Joined: 15 Jul 2005 Karma :

Sounds like valvetrain noise. It is in time with engine revs. A leaking exhaust joint noise tends to match throttle position.

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

its def not the rear section of the exhaust as ive had a new rear section fitted the noise seems to come from the top middle of the engine

map · Mr Calendar Joined: 14 Jun 2004 Karma :

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

my old gsxr400rrsp made a similar noise when i had a hole in the downpipes

my mechanic said the noise i could hear was one of the pistons.

ram_doom · World Chat Champion Joined: 25 Mar 2006 Karma :

Omg that video is like seeing from the viewpoint of some mutant killer b-movie bee's flying around trying to get into the fairing... Shocked

I'd go with valve clearance's
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geordiecbrblo... · Trackday Trickster Joined: 17 Jul 2005 Karma :

Hmmmm does the noise alter if you pull the clutch in and rev? Confused

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

the noise accures with the clutch engaged or not

Flip · Super Spammer Joined: 28 Feb 2004 Karma :

Whosthedaddy · Super Spammer Joined: 11 Dec 2005 Karma :

NSR Mick · World Chat Champion Joined: 26 Jun 2005 Karma :

I'd go with valves too, does the VFR have quietening gears in the cam train as its a performance mod to remove them although I've never heard one with them removed the are supposed to make more noise.
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cagiva gezzer · World Chat Champion Joined: 17 Mar 2003 Karma :

Sounds like the starter isn't disengaging and it's being spun up. Other than that, i thought my bike sounds comical!

On that note, never put "comical" into google images search.

Question

I'd like to point out that i don't work on four strokes. Thumbs Up

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Flip · Super Spammer Joined: 28 Feb 2004 Karma :

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

supose yeah does sound a bit like a sewing machine at times Confused

would the valve cause the bike to hunt ???

rofl at that pic Laughing

McGee · O RLY? Joined: 24 Jun 2005 Karma :

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

12 bore i think ,

no seriously if the valves need adjusting would it cause the bike to rough idle?

McGee · O RLY? Joined: 24 Jun 2005 Karma :

Not related but I got a mitsibushi colt which valves are all messed up, it wont idle tidy and it wont pull of tidy, shudders not matter how much throttle you give it.

Also gets sh*tty mpg Confused

So maybe that is the proplem like I said earlier or your down pipes are farked.

How many miles has your bike got and has it had a major service and had them adjusted ?
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Its pronounced Jixxer!

mirax · Scooby Slapper Joined: 13 Jan 2005 Karma :

Not sure when they were last done, ive had the bike a year now and its done 36,000km (22 369 miles). its been doing it for a little while now havent had time to sort it as it my only for of transport to work. but i really need to get to the bottom of the cause before it becomes a problem Sad

might see if i can pop down to honda tomoz and let them have a listen Confused

Whosthedaddy · Super Spammer Joined: 11 Dec 2005 Karma :

tony532 · World Chat Champion Joined: 29 May 2004 Karma :

who fitted new downpipes?.

did you put new washers on?.

the bike bogging down when you pull away is the same problem i had.

element · World Chat Champion Joined: 23 Jan 2006 Karma :

that noise sounds scarily like my speedy 100 at the minute Shocked

.. Ill record a sound and post it up tomoz cos its really pissing me off now since I cant find out what it is.. Very unlikely to be the same problem since my bike has nothing to compare against yours.. My bike has also feels like its lost a little power in the mid-range since ive replaced a worn belt and rollers in an attempt to cure the noise but that could be answered by the fact the rollers are heavier and the old belt im starting to wonder if it actually was a kevlar one... Im starting to think its worn/dry crank bearings else the clutch or piston is the only thing left that is constantly moving Confused

.. Hoping its not the crank bearings but Im guessing Id know if it was?

could you describe it as shaking a bearing in a full spray can?
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