Valve adjustment - Harley Davidson Street Forum - Street 500 and 750
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post #1 of 13 Old 08-26-2018, 06:54 AM Thread Starter
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Valve adjustment

Guys / Gals,


Have managed to obtain a Service Manual for the 750 Street and due to bad weather here and not being able to ride I have been having a read and looking at how to do various servicing tasks.


I have been trying to find the dismantling / removal of parts that is required to gain access to the valves in order to check and adjust them but the manual only seems to refer to complete engine rebuilds in this area!


Has anyone found a source of instruction on how to check / adjust the valves?


Thanks in advance.

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post #2 of 13 Old 08-26-2018, 07:12 AM
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post #3 of 13 Old 08-26-2018, 10:53 AM
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Basically;

Get rear wheel off the ground
Lift the rear of the tank
Remove air filter
Remove rocker covers
Take plugs out
Put bike in 5th or 6th gear, and rotate engine with rear wheel
Get one cylinder to TDC
There are timing marks on the camshaft sprocket that need to be in a certain position
Measure clearance with feeler guages
Adjust as necessary
Adjustment is by screw and lock nut
Repeat on other cylinder
Put it all back together

Clearances for the 750 should be;
Inlet 5 to 7 thou
Exhaust 7 to 9 thou
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post #4 of 13 Old 08-26-2018, 10:57 AM Thread Starter
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That's great - thank you. Was uncertain if you needed to remove the tank etc.

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post #5 of 13 Old 08-26-2018, 11:23 AM
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Quote:
Originally Posted by Botty View Post
Guys / Gals,


Have managed to obtain a Service Manual for the 750 Street and due to bad weather here and not being able to ride I have been having a read and looking at how to do various servicing tasks.


I have been trying to find the dismantling / removal of parts that is required to gain access to the valves in order to check and adjust them but the manual only seems to refer to complete engine rebuilds in this area!


Has anyone found a source of instruction on how to check / adjust the valves?


Thanks in advance.

About 19:07 in.



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Last edited by Tinker1980; 08-26-2018 at 11:26 AM.
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post #6 of 13 Old 08-26-2018, 11:59 AM Thread Starter
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Fantastic - thank you
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post #7 of 13 Old 08-26-2018, 10:26 PM
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The fact that this bike has screw and locknut adjusters, instead of shim and bucket, is just one more reason I like it.
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post #8 of 13 Old 08-27-2018, 02:37 AM Thread Starter
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Nah, I don't like it ! I LOVE IT !


Reading the manuals and watching this video has shown how simple they are to work on too.


I love that tool that he checks / adjusts the valves with - gotta put that on my Christmas list !!!
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post #9 of 13 Old 08-27-2018, 07:34 AM Thread Starter
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Ok, so now I know how to adjust the valves. Am trying to source an adjustment tool.


Has anyone got the size required to adjust the valves - not the spanner needed to tighten them = the actual size of the valve / tappet head?



EBay have them in 3, 3.5, 9 and 10mm

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post #10 of 13 Old 08-27-2018, 08:43 PM
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To adjust the valves, you'll need a 10mm open end wrench, and a stubby flat-head screwdriver - assuming you don't go with that shiny tool they show in the video. I might get that one myself, because I have a Suzuki that could also use that tool for valve adjustment.
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