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Sportster Motorcycle Drag Racing Discuss drag racing on a Sportster Motorcycle.

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  #1671  
Old 4 Days Ago
Tinz Tinz is offline
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Quote:
Originally Posted by cycowrencher View Post
#2 qualifier and went to 2nd round. Lost with a -0.001 red light... Was trying too hard... Was running really tight all day. Dialed 10.67. Went 10.674 rd 1 and went 10.673 in rd 2. My lights were 0.04 and better all day until the red....

Learned a lot about new clutch. Took a lot of weight off it. Still need to take more off... Went from 77 grams to 64 grams and looks like it needs to be in the 40 gram range to really smooth the hit out. Also need more static in clutch. At 545lbs of spring... Need 600lbs or more static.

Really really like new carb...

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Good stuff! Sounds like you’re getting dialed in early!


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  #1672  
Old 3 Days Ago
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Quote:
Originally Posted by cycowrencher View Post
#2 qualifier and went to 2nd round. Lost with a -0.001 red light... Was trying too hard... Was running really tight all day. Dialed 10.67. Went 10.674 rd 1 and went 10.673 in rd 2. My lights were 0.04 and better all day until the red....

Learned a lot about new clutch. Took a lot of weight off it. Still need to take more off... Went from 77 grams to 64 grams and looks like it needs to be in the 40 gram range to really smooth the hit out. Also need more static in clutch. At 545lbs of spring... Need 600lbs or more static.

Really really like new carb...

Sent from my LM-V405 using Tapatalk

Nice job ! Good to hear about some racing!
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  #1673  
Old 3 Days Ago
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I'm a big fan of Lectron, still wonder why H-D dish them.

What needle do you use?
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  #1674  
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Quote:
Originally Posted by rejeanprimeau View Post
I'm a big fan of Lectron, still wonder why H-D dish them.

What needle do you use?
Its their HD400 48MM carb.

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  #1675  
Old 3 Days Ago
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Heres the big sell for the Lectron....

No dumping fuel to adjust the carb. From the as shipped configuration, I am 1/4 turn richer on the needle and 3/4 turn leaner on power jet. I'm 1 turn richer on the idle jet to get 12.7 on startup. 1/4 turn on power jet us equal to .3 afr or 1 numbered jet size.

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  #1676  
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Wow, I have a 40mm with a 10-4XL.
Big difference.
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  #1677  
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cycowrencher cycowrencher is offline
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Quote:
Originally Posted by rejeanprimeau View Post
Wow, I have a 40mm with a 10-4XL.
Big difference.
Bet you're not shifting yours at 7500 either....

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