Your stock 235 will never see 4K, at cruise it will probable be in the 2800 to 3200 rpm
range.
You can use a small voltage booster cube to power a several 12v device. For instance, a
tach, stereo, cell phone, etc., from your 6v system. Most of your Farm supplies like Farm
& Fleet and auto accessories suppliers such as Jegs, Summit, online eBay stores sell an
inexpensive 12v Sunpro tach for about $25-$35 dollars. I would suggest the larger face,
which is much easier to read while bouncing around in a ‘Bolt.
Denny Graham
Sandwich, IL
