Question about 1988 kawasaki GPX 750 R

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There is a whisteling noise which appears to be comming from the front lower part of the engine. it seems to dissapear as rev's increase

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Check your exhaust header bolts.

Posted on Jun 23, 2009

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1 Answer

Engine makes whisteling sound when started


Hard to say could be a belt, bearing, or a fan blade with a small crack in it. Try using a piece of hose to your ear and moving it around to different places to try to isolate the area the noise is emanating from.

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Rattling noise , engine noise, that accelerates while increasing speed.


if this is under the hood (front of car), it could be an exhaust heat shield that is either corroded loose or a fastener has come loose. Does it happen when you rev the engine in park? if so, either have someone rev while you watch for whatever is rattling or have them watch while you rev.

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My 98 v8 sov has knocking when first started increasing revs stops it


It could be if the noise comes back at idle . If not then the problem is else where. It may be a faulty hydraulic valve lifter that is draining down and taking longer to fill with oil at idle. If you have automatic cam adjuster it may be in there (V V I or VETEC type of engine.)

Feb 01, 2014 | Cars & Trucks

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Speed of the lawn mower governor is missadjusted


The engine revs are turned down to make the machine noise compliant, increasing the revs will greatly increase the noise, the engine revs shouold not realy be increased, however a dealer with a suitable engine taco may do it for you, it is very important not too over speed the engine or it will self destruct,

Apr 11, 2013 | Tecumseh Lawn Boy Push Mowers Insight...

1 Answer

Why does my Big Buddy Mr. Heater make a whistling or humming noise?


mr heater makes a whistling sound as gas escapes around the gasket of the ceramic heating elements, that is ,all around the outside edges of the ceramic heating elements.

You can find out exactly where the gas leak is , by pressing down on the outside edges of the ceramic elements with a big, long
slotted (flat bladed) screwdriver while mr heater is running and hot.

The screwdriver needs to be long enough so that you dont burn your hands [the longer & bigger the screwdriver, the better] & it does not hurt to wear heavy gloves too, because it gets very hot, very fast in front of mr heater.
The thicker the blade of the screwdriver is, the less chance of damaging the ceramic heating element because a thick bladed screwdriver will not concentrate all the pressure in just 1 tiny point.

You are not trying to crack the ceramic with a wood chisel.

Dont press down so hard that you break the ceramic heating element, start by pressing down gently and gradually increasing pressure until you notice a change in the whistle or sparks comming out of the heating element as loose carbon deposits
come out of the heating element and burn in the propaine flame.

When you press down on one edge ,the other opposite edge may come up slightly, resulting in loose carbon deposits escaping and burning as sparks.

also, you may not be pressing at the spot where the gas whistling is comming from and will need to move the screwdriver flat blade around the edges, here & there, to test for the effect of pressing down.

When you press down on the outside edge where the diamonds stop, while mr heater is whisteling, the whisteling will stop & mr heater will run quite. Sometimes, just pushing down with the screwdriver will stop the whisteling ,for a while,and maybe a good long while.

The big pain in the **** solution is to put a new gasket around the
ceramic heating elements, but there is no guarantee that the new gasket will not whistle.
Its a big ,nasty job, which I would rather not do--so I just push down with the screwdriver, to temporarly stop the whisteling, I guess it depends on how much the whisteling annoys you, as to if you want to go thru all the effort & expense of changing out the gaskets, without knowing if it will still whistle when you are done.

Im just a diy guy that has 3 big buddys I keep going for 4 yrs now.
I took one apart to look 4 the cause of the gas whistling, and then put it back together. Funny,it stopped whisteling & that was 3 yrs ago. I didnt put in any new parts.

It may help ,a lot ,to increase the pressure with which the Mr heater ceramic is pressed down against the gasket material.


This is accomplished by a heavy stainless steel wire that runs behind the ceramic heater element and goes through sheet metal
tabs on each side of the ceramic mounting frame.
You can bend the wire and the tabs,but only a little bit, and be very careful not to break the tabs because the tabs are not repairable, to increase the downwards pressure of the ceramic element against the gasket material. This may stop the gas whisteling--
its a try & see thing, a finicky adjustment, that sometimes works
& sometimes does not and sometimes, after a week or two, the ceramic might reseat itself against the gasket material and the whistling stop. Mine did stop whistling, but not until a couple of months after i did the job, due ,i think to reseating of the cermic against the gasket material. its try & see thing.


also ,a gas tank that has higher than average gas pressure may start gas whistling up but the whistling will stop after you have burned up the higher pressure of the propaine.

Jan 06, 2013 | Mr. Heater Big Buddy Heater

1 Answer

Klicking engine noise


One thing you haven't mentioned is if the frequency of the ticking increases with engine revs? Or does it increase with road speed? Or stay the same no matter what? If the freq increases with revs the problem is most likely to be in the top end of the engine. if it goes up with road speed, it is likely to be in the region of the final drive system. If it stays the same it is likely to be an electrically driven ancillary. I hope this will (at least) point you in the right direction.

Jun 10, 2012 | 2011 KTM 990 Adventure Dakar

1 Answer

We have a 2002 Sante fe Automatic AWD. We seem to lose power and cannot get up to highway speed. The ransmission down shifts the engine revs but we constantly lose power and the engine is at max rev. I...


It sound like a plugged up catalytic converter to me. If you have more question about this feel free to ask and I will answer then as soon as possible Thank You

Jan 27, 2011 | 2002 Hyundai Santa Fe

1 Answer

Woouumm Woouumm noise


Check the right side engine mount ASAP!
Call the dealer and give them the VIN number.

There is a new TOYOTA part no. 123052-0D120 to address this problem.

The old design on 05 and 06 has the noise problem.

In order to pin point the problem I will need the VIN number.

Please post it and I will follow up on it.

Feb 25, 2009 | 2005 Toyota Corolla

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