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Starting Member
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Last Login: 7/2/2006 3:15:07 PM
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| The last few times I've taken the bike out, there's a roughness when I'm in the low gears. The last trip a 'tinging' noise started in first, second and neutral and a mile from home it also began killing when I geared down or came to a stop. Describing the situation to other riders, I repeatedly hear bad gas or water in the gas. A suggestion to add some rubbing alcohol to the tank decreased the 'tinging', but it's still there. Are there other causes - fuel lines, injectors, etc? I'm mechanically inclined, but no mechanic, so if you have a suggestion about what it might be, please let me know, too, if it's something I should try to fix or if it's better to get it to a mechanic. Thanks in advance for your help.
Cajun Raddin
'99 FLHR Road King
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Can you isolate the area the tinging is coming from?
Have a look at the plugs for signs of detonation (white color, burned electrodes, etc.)
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The noise is not really a ping or ting. It is intermittent and has a sound like a metal file sharpening a horseshoe. It appears to be coming from the front head area. It almost appears to be starving for air or an electronic problem. Plugs look normal. Thanks in advance.
Cajun Raddin
'99 FLHR Road King
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| take the bike to a slope where you can do an engine-off coast. if the engine has to be running to get the noise, is the noise ever present while the bike is stationary? does the noise occur in all gears, or just 2 gears? happens in a narrow rpm range. or any rev? if you can get the noise with the motor off , but the bike coasting; does it occur with one or the other brake use? only after or during rough pavement crossings? the noise might be a drive chain/belt rubbing on a block or guard edge. a bad wheel bearing? something stuck to the tire sidewall that rubs a fender edge? something stuck to the underside of a fender that rubs on the tire at certain speeds? come to think of it, i have never seen a diagnostic schematic/series of tests for stuff like this. maybe someone has seen one and can post a link or something. then, we all would have a good resource.
nobody rides half as well as they know how.
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| inspect primary drive. loose chain might be slapping/rubbing the inside of the case. if the bike wants to stall while the noise is present at low speeds, is it clutch related? the fact that it happens in neutral leads me to suspect something is dragging in the primary case. or maybe the starter gear return spring is broke and the starter gear slides out. extra drag from the starter might cause the noise and induce stalling. if the noise is really in the front head, especially if the bike is idling in neutral; valve train components need to be checked. whatever it turns out to be, let us know. i would spend some more time trying to carefully diagnose it for myself while keeping detailed notes of my efforts and results. thus, when i would have to take it to a mechanic, i would have plenty of info for his consideration.
nobody rides half as well as they know how.
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| Ahhh.these kind of problems can drive you nuts. Fortunately, in my particular case, I have an "aftermarket" shop that I kinda trust the mechanics (father & son ownership) more than a dealership to do the right thing by me. Over the past years, as far as I'm concererned, they've been just fine. Not cheap... If that noise was me....I'd ride the bike over there and let them tell me what it was. THEY know better....they work on these bikes all the time...their primary "stock in trade" are high-end custom machines...and they service even my lowly "stocker" (and have made some real nice improvments that really make it a better runner...). What I would do...and take hours of "experimentation" and deductions...I might guess these guys could find in a matter of minits. You live anywhere near Philadelphia? Can to get to Burlington, NJ? PM me and I'll give you the name and address. Just my 2cents.
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In the 1999 twinkie motors you had two common issues; one was the cam bearing problem and the second (an issue beyond 1999) is the cam chain tensioners wearing out prematurely.
If your engine is sounding different and the bike has some mileage on it 20K+ then I would check the cam chain tensioners.
For some engines this happens early on while others may not experience it for 50K+ mi. The average time it happens seems to be 20-30K mi. It may happen sooner or later.
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