I just looked at the coaster bus vac diagram, it does have the option with or without idle up, If you have a look you'll see the tab on the end of the tee, (without idle up) #2 also I'd check to see the 2 t vac junctions in diagram where both lines from the BVSV go, I'd suspect they would...
That vacum diagram mate is for an auto, a little different, but if your cruiser is a manual, use this one , on the subject of the BVSV, its temp sensing vac valve, that assists in idle up when starting from cold start, once donk warms up, that Shuts the vacum off and idle should return to...
The reason I ask, I thought my charge relay was playing up, but made no difference when replaced, it worked out that was the alternator stator was earthing out intermittently, was was just rebuilt, had to install and rip out 3 times before got to the bottom of the issue
When I did my flush and topped up I removed the hoses to rear piping completely , no need for them in QLD, Your doing a great job, really impressed with your bunded area ,
Great buy mate, and your doing all the fun stuff yourself, I had rust in same spot also, my rig was grey 153 all over until clear started to breakdown on roof and bonnet, I didn't trust the shop to colour match, so I went with the 2 tone instead ,
Yep I would agree with Danshj45, understand where your Gauges baselines are, I've towed fully loaded in Australian summer a number of times, and have reached halfway on the temp gauge maybe a tad over a few times, and yes i was doing 110-120klms an hour up hills through Hawkesbury on a hwy...