Re: Tacho Repair
Posted: Thu Jan 25, 2018 6:07 am
Yes, I did note that. For some reason the article didn't say to replace it and I didn't purchase the part to do it...
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mbell wrote:MarkDa wrote:It calibrated ok and seems ok up to 4000 rpm but doesn't move any further.
Need to spend some time charactising the issue thou.
MarkDa wrote:Spiyda offer several solder points -apparently they just vary the resistance at input.
So on the basis of Billwills analysis we need low resistance to keep voltage up which can be effected by user.
But frequency is beyond us.
The input is determined by engine and as designer knows revs will be up to (say) 7k surely he'd allow for that.
Anyway when I get mine back I'll have a word with him to see if I can get it working at the upper end.
To be honest I don't really use the tacho as I have ears, a working Speedo and a rev limiter.
But having spent the cash it would be nice for it to somewhere near!
Chrispy wrote:Here's a quick vid showing what was going on and how much the rheostat was moving. https://www.youtube.com/watch?v=LHzjSY3n0GQ
One thing I would comment on is that there is a lot of information around on how to do the conversion but it is a little sporadic in location/presentation and I feel lacking information/advice on the inputs. I think a little time restructuring the doc and providing more information in places would make life easier for users and lower the support burden on the product.