Valve lifter easy start?
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Tourer
Joined: May 2009
Posts: 383
Likes: 20
From: Great Britain
Valve lifter easy start?
Hi all.
I think my battery is on its way out (sluggish to start) , but before i buy a new one i was wondering if that "valve lifter/ compression release thing might be not working in the cylinder heads ?
Does this sound feasible and can you test it ?
Ps - 2.5 year old original battery on 103ci glide that has always been on the optimate charger.
Thanks all.
Rowle -uk
I think my battery is on its way out (sluggish to start) , but before i buy a new one i was wondering if that "valve lifter/ compression release thing might be not working in the cylinder heads ?
Does this sound feasible and can you test it ?
Ps - 2.5 year old original battery on 103ci glide that has always been on the optimate charger.
Thanks all.
Rowle -uk
Road Master
Joined: Dec 2008
Posts: 872
Likes: 20
From: Niagara Falls Canada
easy to do
not sure of your level of mechanical ability is after seeing what u called this, but here goes.
u will need a compression guage, remove spark plugs and insert compression guage in spark plug hole leave 2nd plug out ..turn bike over get the reading, with acr working im guessing you will be in the 140-150 range .
the compression releases engage when the starter button is pushed. u will have to remove your gas tank to get at the connection to unplug your acr - automatic compression release on that cylinder. turn bike over again and take reading with the acr unplugged , the reading on a stock 103 im guessing will be about 180-190 psi ,, then do the 2nd cylinder reading the same way. if your reading are not lower with the acr plugged in , then some thing may be wrong with them or the circuit that turns them on isnt working. they are wired into the fuel pump circuit, so if a fuse is blown the fuel pump wont work either.
pretty sure I dropped about 40 psi when I did my test.
u will need a compression guage, remove spark plugs and insert compression guage in spark plug hole leave 2nd plug out ..turn bike over get the reading, with acr working im guessing you will be in the 140-150 range .
the compression releases engage when the starter button is pushed. u will have to remove your gas tank to get at the connection to unplug your acr - automatic compression release on that cylinder. turn bike over again and take reading with the acr unplugged , the reading on a stock 103 im guessing will be about 180-190 psi ,, then do the 2nd cylinder reading the same way. if your reading are not lower with the acr plugged in , then some thing may be wrong with them or the circuit that turns them on isnt working. they are wired into the fuel pump circuit, so if a fuse is blown the fuel pump wont work either.
pretty sure I dropped about 40 psi when I did my test.
Last edited by 2009blackpearle; Jun 18, 2014 at 03:03 AM.
Thread Starter
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Tourer
Joined: May 2009
Posts: 383
Likes: 20
From: Great Britain
Thanks Both for your answers.
i have been reading on the forum that some peoples batteries are only lasting 2-3 years (same as mine).
i have found a 385 ampm cold cranking power battery (drag specialisties) for Ł 135 (Uk) so might buy that. HD want Ł200+ for the same spec !
Thanks again.
i have been reading on the forum that some peoples batteries are only lasting 2-3 years (same as mine).
i have found a 385 ampm cold cranking power battery (drag specialisties) for Ł 135 (Uk) so might buy that. HD want Ł200+ for the same spec !
Thanks again.
Outstanding HDF Member
Joined: May 2008
Posts: 2,543
Likes: 19
From: Ashland Ohio
See if you can find Dekka brand batteries over there. Those are actually the people that make the HD batteries. You WANT an AGM type battery. Acid Glass Mat. There is no liquid in a HD battery and it cannot spill out when it (or the bike) gets laid over like cheaper batteries. This is because it is an AGM type battery.
Dekka sells AGM batteries and are half the price of an HD battery over here. Can you guys do Amazon? I just bought a Dekka 400 CCA AGM battery from BatteryMart.com for $138US.
Oh, to do a compression test, all you need to do is pull the fuse to the ACRs. No need for all of that tank removal, etc. You can do this, because since you will not be starting the engine, only spinning the starter itself... doesn't matter what else gets shut off in the process.
Dekka sells AGM batteries and are half the price of an HD battery over here. Can you guys do Amazon? I just bought a Dekka 400 CCA AGM battery from BatteryMart.com for $138US.
Oh, to do a compression test, all you need to do is pull the fuse to the ACRs. No need for all of that tank removal, etc. You can do this, because since you will not be starting the engine, only spinning the starter itself... doesn't matter what else gets shut off in the process.
Last edited by wurk_truk; Jun 18, 2014 at 08:49 AM.
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