New Top End
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Cruiser
Joined: Oct 2018
Posts: 167
Likes: 6
From: Los Angeles
New Top End
Hi just had new SS 110 kit put on, heads done by Dave Mackie compression set 10.7. Im noticing after the bike gets hot it starts feeling sluggish and not as responsive. Coming out first gear is choppy if that would be a correct way to put it. can someone tell me if its running lean or what would be causing this?
HDF Community Team
Joined: Jun 2006
Posts: 12,776
Likes: 2,607
From: san antonio
Check for sumping. Classic symptoms are quick to heat/over heat and sluggish performance. Sumping is caused by improper oil pump alignment and/or poor sealing between the pump "spigot" and the crank case scavenge port. Check by carefully removing the case plug on the right side case bottom to see how much oil comes out. If more than 4-6 ounces, the motor is sumping. The fix is to pull the cam plate, follow the service manual procedure for oil pump alignment (there are alignment pins that some use) and/or replace the seal at the scavenge port. There could be another issue but what is described are classic sumping symptoms and a logical place to start searching for the solution.
Thread Starter
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Cruiser
Joined: Oct 2018
Posts: 167
Likes: 6
From: Los Angeles
Check for sumping. Classic symptoms are quick to heat/over heat and sluggish performance. Sumping is caused by improper oil pump alignment and/or poor sealing between the pump "spigot" and the crank case scavenge port. Check by carefully removing the case plug on the right side case bottom to see how much oil comes out. If more than 4-6 ounces, the motor is sumping. The fix is to pull the cam plate, follow the service manual procedure for oil pump alignment (there are alignment pins that some use) and/or replace the seal at the scavenge port. There could be another issue but what is described are classic sumping symptoms and a logical place to start searching for the solution.
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Cruiser
Joined: Oct 2018
Posts: 167
Likes: 6
From: Los Angeles
it was tuned from the builder with power vision. Thinking of doing another tune with tts
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Cruiser
Joined: Oct 2018
Posts: 167
Likes: 6
From: Los Angeles
how easy is it to damage top end? Ive been riding some and just want to make sure i do permanent damage
Banned
Joined: Sep 2009
Posts: 3,569
Likes: 624
From: deland,florida
pretty easy. overheating is the hardest thing on a new top end,you asked these same questions on the other forum and I suggested there to get it tuned correctly,theres nothing wrong with a PV,no need to go with a TTS.problem is with the guy tuning it
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