DAX-IT!!!
Member
Hi Guys
Haven't posted for a while as I've been rebuilding the bike - its pretty much rebuilt now. The bike now starts/runs etc but here are a couple of my problems.
Firstly, electrical. Can anybody tell me (in childlike terms as I am a complete THICKO when it comes to electrical issues and following instructions regarding electrics - assume I know NOTHING about testing items etc) how to test the OEM factory fitted rectifier that's on my ST90? I've looked on the net but its all about 12v rectifiers that are not similar to the one fitted on the ST90. Please guys tell me about the one fitted to the ST90, not one similar to it.
Secondly, how can I test whether or not the alternator (submerged in the engine oil) in the engine is functioning correctly ??
My reason for asking is that I think my battery is OK, (it was new 3yrs ago and has been kept on an optimate ever since) but I dont think its being charged properly whilst the bike is running. Lights are bright but dont appear to get brighter when revving the engine and neither do the indicators (they dont flash very fast either).
Here's how I tested the electrical charging:-
Battery connected to bike, I'm getting just over 6.35v.
Switch on, bike NOT running, only neutral light on 6.05v.
Start bike from cold, leave ticking over 6.7/8v.
Leave ticking over, put h/lights on 6.1v.
Leave ticking over, put lights and indicators on 5.8v.
Then rev bike to a constant 3 to 4000rpm with lights & indicators on 5.8v.
Then bike back to ticking over, 6.4v.
My other issue is when bike is warm and I switch off, it sounds like something is still spinning round in the engine for a few seconds even though the engine has completely stopped. It sounds a little bit like a ratchet (like kickstart). The kickstart works fine. Your advice/input appreciated
Haven't posted for a while as I've been rebuilding the bike - its pretty much rebuilt now. The bike now starts/runs etc but here are a couple of my problems.
Firstly, electrical. Can anybody tell me (in childlike terms as I am a complete THICKO when it comes to electrical issues and following instructions regarding electrics - assume I know NOTHING about testing items etc) how to test the OEM factory fitted rectifier that's on my ST90? I've looked on the net but its all about 12v rectifiers that are not similar to the one fitted on the ST90. Please guys tell me about the one fitted to the ST90, not one similar to it.
Secondly, how can I test whether or not the alternator (submerged in the engine oil) in the engine is functioning correctly ??
My reason for asking is that I think my battery is OK, (it was new 3yrs ago and has been kept on an optimate ever since) but I dont think its being charged properly whilst the bike is running. Lights are bright but dont appear to get brighter when revving the engine and neither do the indicators (they dont flash very fast either).
Here's how I tested the electrical charging:-
Battery connected to bike, I'm getting just over 6.35v.
Switch on, bike NOT running, only neutral light on 6.05v.
Start bike from cold, leave ticking over 6.7/8v.
Leave ticking over, put h/lights on 6.1v.
Leave ticking over, put lights and indicators on 5.8v.
Then rev bike to a constant 3 to 4000rpm with lights & indicators on 5.8v.
Then bike back to ticking over, 6.4v.
My other issue is when bike is warm and I switch off, it sounds like something is still spinning round in the engine for a few seconds even though the engine has completely stopped. It sounds a little bit like a ratchet (like kickstart). The kickstart works fine. Your advice/input appreciated
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