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  #11  
Old 8th April 2015
XLCHc*ntmagnet XLCHc*ntmagnet is offline
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Originally Posted by StickFSMC View Post
What's a computer???
IDK what's that?
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  #12  
Old 8th April 2015
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sportsterdoc sportsterdoc is offline
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Quote:
Originally Posted by XLCHc*ntmagnet View Post
...compression haven't had it measured, how would I?
plugs are Black!

what are you thinking?
Compression: Worn rings or more likely valves not fully closing (a compression tester is available at most any auto parts)

Plugs black: Way too rich and/or maybe a very weak spark
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  #13  
Old 8th April 2015
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Fridge Fridge is offline
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Quote:
Originally Posted by XLCHc*ntmagnet View Post
throttle's good
fuel flow's great
compression haven't had it measured, how would I?
plugs are Black!

what are you thinking?
Black plugs is a usual indication of too rich a mixture in the combustion chamber.
Either from too much fuel or not enough air.
Air cleaner clean?

Excessive pumping of the accelerator pump will cause a black looking plug also.

What size main jet in the old bendix carb?

Is the choke plate fully open?
Does it tend to drop while running the bike? Those detentes that hold it in position have been known to wear and allow it to drop down a notch or so.

As far as a compression check ,you need a compression checking gauge and then perform the test with an engine at operating temp(preferably), fully open throttle and turning it over(not starting it) several good turns.
Perform it 3 times and average it out.
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  #14  
Old 8th April 2015
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sportsterdoc sportsterdoc is offline
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Quote:
Originally Posted by Fridge View Post
Black plugs is a usual indication of too rich a mixture in the combustion chamber.
Either from too much fuel or not enough air.
Air cleaner clean?

Excessive pumping of the accelerator pump will cause a black looking plug also.

What size main jet in the old bendix carb?

Is the choke plate fully open?
Does it tend to drop while running the bike? Those detentes that hold it in position have been known to wear and allow it to drop down a notch or so.

As far as a compression check ,you need a compression checking gauge and then perform the test with an engine at operating temp(preferably), fully open throttle and turning it over(not starting it) several good turns.
Perform it 3 times and average it out.
All good stuff Fridge
Rep to you
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  #15  
Old 8th April 2015
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Fridge Fridge is offline
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Quote:
Originally Posted by sportsterdoc View Post
All good stuff Fridge
Rep to you
Thanks, always a pleasure to help an ironhead wrencher and right back at ya.
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  #16  
Old 9th April 2015
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randy3934 randy3934 is offline
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Sportster/Buell Model: xlh 1000 69 79 xlch
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are you advancing the mag after starting?
__________________
I'm not a complete idiot, some parts are missing.
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  #17  
Old 9th April 2015
XLCHc*ntmagnet XLCHc*ntmagnet is offline
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Quote:
Originally Posted by randy3934 View Post
are you advancing the mag after starting?
no, right now I have a static time, an old timer recommended it, what would you recommend?
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  #18  
Old 9th April 2015
XLCHc*ntmagnet XLCHc*ntmagnet is offline
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Quote:
Originally Posted by Fridge View Post
Black plugs is a usual indication of too rich a mixture in the combustion chamber.
Either from too much fuel or not enough air.
Air cleaner clean?

Excessive pumping of the accelerator pump will cause a black looking plug also.

What size main jet in the old bendix carb?

Is the choke plate fully open?
Does it tend to drop while running the bike? Those detentes that hold it in position have been known to wear and allow it to drop down a notch or so.

As far as a compression check ,you need a compression checking gauge and then perform the test with an engine at operating temp(preferably), fully open throttle and turning it over(not starting it) several good turns.
Perform it 3 times and average it out.
air cleaner is perfect and i got an old giant round air cleaner so air flow is abundant. The choke plate is great, I never use it, and it is always up, I give it 2 1/2 squirts with the ol' accel pump to get her going, might that be the cause of my black plugs?
so now my homework is to get a compression gauge and pull apart the carb to see what main jet size I have, I'll get back to you as soon as I do, and Thanks a lot man, I really appreciate everyone's knowledge and time, you guys are great!
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  #19  
Old 9th April 2015
XLCHc*ntmagnet XLCHc*ntmagnet is offline
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as an update, I pulled apart my clutch and put it back together with some heavy duty springs to reduce the slipping, I'm up to 72! baby steps I guess, but it's something

btw taking the baffles out didn't do anything for me, worth the try though so thanks!
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  #20  
Old 9th April 2015
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brianbbs67 brianbbs67 is offline
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Quote:
Originally Posted by XLCHc*ntmagnet View Post
as an update, I pulled apart my clutch and put it back together with some heavy duty springs to reduce the slipping, I'm up to 72! baby steps I guess, but it's something

btw taking the baffles out didn't do anything for me, worth the try though so thanks!
Heavy springs may ruin your worm gear, unless its hardened. Whats your spring compressed height installed?(between cup lip and plate) should be 0.187, 3/16"

How about some pics of the first year street legal CH?
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