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If this engines a knockin'......where to start? (Read 3 times)
Pump_Jockey
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If this engines a knockin'......where to start?
07/08/07 at 18:04:11
 
Hey, a newbie that just got a '98 with 4,900 mi.  I've got a pretty severe knock at all rpm's (not so much at idle) and worse under load (riding).  Thinking initally of spark or pre ignition.  Digging deeper I've got some glitter in the oil filter housing.  It seems to me that it's internal mechanical.  Any common issues?  Do I pop the top or does it seem like more big end?
Any insight?  I really like this bike and am willing to put some blood, sweat, and beers into it!
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Max_Morley
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Re: If this engines a knockin'......where to start
Reply #1 - 07/08/07 at 21:05:16
 
Seems like low mileage for the cam chain/tensioner issue, so I'd start by removing the head cover and check the cam and lifters area. You can also try lifting the cam chain off the gear and get an idea if that is the problem, but mine didn't have any metal particles in the oil. Lower end has not been a concern in my recollection of this and the German forum that proceeded it. Max
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Savage_Rob
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Re: If this engines a knockin'......where to start
Reply #2 - 07/09/07 at 08:48:53
 
Of course, if the odometer reading is not correct on that 98, the cam chain could still be an issue.  If that's the case, it'd be coming from the right side and a $2 mechanic's stethoscope from Harbor Freight would help isolate it.  In my opinion, it would be worth the price of a new gasket to pull the right side cover and peek at the cam chain, tensioner, and adjuster.
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1998|MAC muffler|ceramic coated header|K&N air filter|Amal Mk2 carb|Odyssey battery|iridium plug|NC windshield|Dunlop 491s|Superbrace|EBC brake rotor|12.5" Progressive shocks|Kuryakyn ISO grips
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Pump_Jockey
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Re: If this engines a knockin'......where to start
Reply #3 - 07/09/07 at 15:55:57
 
Do you think the knock is possibly from the cam chain itself or the timing being out of whack because of the cam chain?
Thank for the advice!
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verslagen1
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Re: If this engines a knockin'......where to start
Reply #4 - 07/09/07 at 17:49:37
 
If it were out of time, the piston can whack the valves.

I'd have a look if you can't determine what else it might be.  At worst it's $10 for a gasket versus searching for a new engine.
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