Spark plug problem
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3rd Gear
Joined: Jun 2008
Posts: 7
Likes: 0
spark plug
When you say the plugs get busted, do you mean they are getting broke? If that's the case, dude, you got some major problems. if you are talking about carbon fouling, that's a different story. Do you lug the motor alot? Sportsters don't like to be lugged. Run the rpm's up when you ride it. Is the choked ( enrichener ) pushed all the way in while you ride? the choke should only be used to start the motor, then use the star wheel below the right grip to hold the throttle open enough to keep it running while it warms up.
You're correct i'm talking about thick carbon deposit on the plugs here.
I'll take note about not to lug the bike. As for choke, i don't even use it. It's already too hot here haha. So OK it's clear that I need to fix the AFR problem. Thanks a lots, i'll ask the dealer to do their best.
By the way, any recommendation for adjustable ignition module and high-performance coil for 2000 Sportster 1200 ?
Tourer
Joined: Aug 2008
Posts: 265
Likes: 10
From: Northern Wisconsin
turn off your petcock, and drop the float bowl, remove the jets and tell us what the numbers on them are.. I would expect 170 main and 45 pilot would be about right, but then the fuel you're buying may be completely different than what I buy. Also , I expect they replaced the diaphragm because it had a burnt/melted spot on it? This is from the flames that go through the circuit when it 'coughs' through the carburetor. The enrichiner plunger gets burned too, so put in a new enrichiner plunger and make sure
that it's closing all the way when your choke **** is pushed in. Only use the choke for 30 seconds or so getting it started. Post your results.
Hogdoc
that it's closing all the way when your choke **** is pushed in. Only use the choke for 30 seconds or so getting it started. Post your results.
Hogdoc
Elite HDF Member
Joined: Nov 2006
Posts: 4,525
Likes: 8
From: Wheeling, WV
As stated before, I'd quit taking the scoot to the dealer and find a new mechanic, if you are not going to do the work yourself this time. It sounds like you need to change the jets in the carb because it's running to rich. Oh, and using the choke, not the throttle lock, is the proper way to warm the bike up. 
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Tommy-Law
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Sep 4, 2013 06:17 PM
