Topher
YaBB Newbies
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SuzukiSavage.com Rocks! Well, of course.
Posts: 14
Durham, NC
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Hello, thumpers. Been reading this great site for a while, and now I have a problem. A couple pro mechanics have said “maybe-this-maybe-that.” My repair ability is strong, but knowledge is spotty. Anyone want to play the diagnosis game?
2001 Savage, 8,000 miles, 4,000 of those since bought a year ago. Warm weather, above 70 degrees: Bike always starts and runs with no problems. Cool weather: Bike starts fine, but dies or stutters awfully once warmed up.
Starting behavior is same whether use choke to start (colder air temp) or do not (at 60-70 degrees). After a couple minutes of warming, and when choke turned off if used, revolutions slowly decrease until stall. Can restart with much throttle, so much that gas may come out carb vents. On restart revolutions are normal, but slow to stall again. There is a small amount of black smoke from tailpipe when giving gas to keep alive.
Riding behavior (if take off before warm, or ride into cool weather): Couple minutes after starting, engine stutters horribly for a few seconds (chugga-chugga, power loss), then runs well for 10 seconds, then continuously repeats this cycle. Dies at idle. Can usually keep running with continuous, generous throttle.
Running at high RPM does seem to help when behavior less severe (moderate air temps).
Problem appeared suddenly. This was after a couple months garaged in winter, with no storage prep, but had been riding again for several hundred miles.
Have very mild leak from head gasket since purchase, one year. (At least I think it’s head gasket.)
Fixes Tried:
Replaced spark plug (blackly caked). No change.
Bike shop didn’t experience behavior. Thought it rich and leaned mix half turn; put ring clean in gas. No change.
Higher (medium) octane gas. No change.
Tried carb cleaning, with limited knowledge/ability. Both ends of air horn and the bowl looked pristine clean. Float traveled freely and no apparent damage. Throttle plate moved freely. Cleaned nothing; didn’t know how to check anything else.
Pro mechanic friend suggests I replace the ignition coil next.
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