luvmy40

Synchronized the carbs and started on some of the many minor repairs the plastics need.

Doing some repair work on the plastics now. I'll tackle the fuse block next week. It's hotter than a two dollar pistol out there!

Got the idle trimmed down to 1krpm+/- and took a short run(No tags yet) and it looks like the popping on decel is gone. Didn't get out of second gear so it's not a for sure yet but it sounds much better. The idle isn't as smooth as my in line fours but it's not erratic, just a bit staccato in comparison.

Synchronized the carbs today. They weren't really that bad. Both sides were tolerably close front to back but they were way out left to right. Now they're perfect. Well as perfect as can be without verifying the valve's are in spec. Now I need to let it cool down enough to reset the idle to 1k with out burning the bejeezes out of my hand. I'd like to get the name of the engineer who designed the idle control knob!

PDF manuals are great and all but I'm an old school kinda shade tree mechanic. I want a dogeared greasy book laying on the gas tank when I'm trying to unscrew the inscrutable.

cowpuc, PM in bound. Thanks for the link to the sync procedure. I had not found that thread. It's just as I had sussed out but pointing out the idle adjust knob is great. I looked for quite a while and did not see it(though I knew it was there somewhere!).

OK, Every link to a service manual seems to be to the "L" supplemental manual which says to use in conjunction with the XVZ12T service manual. I can't find the base manual anywhere. The info in the sup. man. seems to be primarily about the cruise control system which I do not have. The "First Gen Manual" at trunkful.com is for the 1300cc Is it generic enough to work from that?

I picked up a new ATM fuse block today, pulled the side covers(they need a good bit of repair work) and just looked around for a while. The carb sync looks simple, front to back, left to right But I can't seem to find any idle adjustment screw. The couple carb sync threads I found must be for a different gen. model year than the '83 as my adjustment screws are nothing like those described and pictured.

I meant the shim diameter. I have a fairly large stock of 29mm diameter shims from my XJ bikes. It looks like the Venture shims are 25mm dia. The local Yamaha shop is really great about helping the DIY mechs and they offer free shim trades so that's not really a huge deal for me. I have the Morgan Carb Tune and Color Tune and have set up more than a few carb banks for myself and others. I'm just new to this model. I'll probably run some Seafoam for a couple tanks and see if there is any improvement. I should be able to clear enough room to tear the plastics off and do the valves, sync the carbs and give her a general check up in the next month or so.

28450 mi. +/- if the odometer is to be believed. As clean as everything is, I don't doubt it. What's the maint. period for valve clearance check? Please tell me the shims are 29mm!

Oh yeah, it's missing one of the exhaust turn downs.

So these are shim over buckets? The guy I bought it from told me the valves were adjustable rockers.

I may have had my "New Bike Goggles" on when I test rode this one. It was near perfect for the short test run but after the shake down run including near highway speed, it's developed a hesitation and is popping on deceleration. It accelerates smooth but surges and ebbs when maintaining a constant speed. It feels ignition related to me but I've never dealt with a liquid cooled V4 before. When I first got my Suzuki GS850, it felt nearly the same. I potted new wires into the coils and it's run fine ever since. Minor things need some work. The right side hard bag's mounting lock cylinder is gummed up and I cant get the key in it. The trunk's lights are hard wired with no disconnect so even when I figure out how to remove it, I can't. The lock for the gas fill cover has pulled through the plastic and has been repaired once. It needs done right. The center console cover's rear mounting tab is busted off. That should be an easy fix for a Kydex Bender Extraordinaire. Pretty minor considering the age of the bike. I've fixed worse on newer bikes before. I'm on the hunt for a factory service manual for now. Here she is! http://i206.photobucket.com/albums/bb258/luvmy40/Motor%20Cycle/Resized_20160721_191008_zpscsubire4.jpeg