HotRodYJ Posted May 17, 2012 Share #1 Posted May 17, 2012 Ever have a starter just get really weak? Like too weak to turn the engine over? Working on my 83 which I personnally have never heard run. Acts like a really weak battery but I charge the battery AND add a fully charged jump box on it and still, the solenoid clicks but the starter does nothing. Occasionally it will drag the motor over really really slow about half a turn then stop. I upgraded to 4 gauge cables when I put it back together after the trans upgrade. I pulled the starter off and laying in the floor it spins great. No indications of an issue at all. Back on the bike and stick the jump box directly on the starter and it still does the same thing. Oh and I did the internal ground mod while I had the starter off, still no difference. The motor turns free by hand, no issue. The starter reduction gears are in there correct and not binding. It just acts like the starter don't have enough power to do the job. I've narrowed down everything I know to do and it seems to me like it's simply a weak starter. I know the newer 4 brush starters are the way to go, but I thought I'd run this by the guru's and see if I may be missing something. Link to comment Share on other sites More sharing options...
Flyinfool Posted May 17, 2012 Share #2 Posted May 17, 2012 I sounds like you have most of the bases covered. Make sure the starter has a good ground. Even though you did the internal ground mod the starter case still needs a good ground to the engine. If it was off for a long time it is possible that the mating surfaces have some slight corossion. Thats the only other thing I can think of. Link to comment Share on other sites More sharing options...
HotRodYJ Posted May 17, 2012 Author Share #3 Posted May 17, 2012 I sounds like you have most of the bases covered. Make sure the starter has a good ground. Even though you did the internal ground mod the starter case still needs a good ground to the engine. If it was off for a long time it is possible that the mating surfaces have some slight corossion. Thats the only other thing I can think of. Thanks for the advice. The surfaces are very very clean (because I cleaned them with emory cloth) and I also moved the ground cable directly to the starter rather than on the engine case. Still, the jump box directly on the starter itself (both ground and positive) trumps any wire/cable issues completely. Link to comment Share on other sites More sharing options...
Yammer Dan Posted May 17, 2012 Share #4 Posted May 17, 2012 What Jeff said. I've had one of these things give up but it cranked right up to the end. Link to comment Share on other sites More sharing options...
Squeeze Posted May 17, 2012 Share #5 Posted May 17, 2012 Did you use a Gasket between Stator Cover and Casing ? Link to comment Share on other sites More sharing options...
HotRodYJ Posted May 17, 2012 Author Share #6 Posted May 17, 2012 (edited) Did you use a Gasket between Stator Cover and Casing ? No just silicone. Can the thickness of the gasket make the starter gears bind maybe? Edited May 17, 2012 by HotRodYJ Link to comment Share on other sites More sharing options...
Squeeze Posted May 17, 2012 Share #7 Posted May 17, 2012 No just silicone. Can the thickness of the gasket make the starter gears bind maybe? Not maybe, it WILL cause the Axles of the Reducer Gears to bind. Link to comment Share on other sites More sharing options...
HotRodYJ Posted May 17, 2012 Author Share #8 Posted May 17, 2012 Not maybe, it WILL cause the Axles of the Reducer Gears to bind. I think we may have a winner. Where is the best (cheapest) place to buy gaskets? Link to comment Share on other sites More sharing options...
Squeeze Posted May 17, 2012 Share #9 Posted May 17, 2012 skydoc_17 should have them, http://www.partshark.com too as well as several others Vendors carry the Link to comment Share on other sites More sharing options...
JohnMidnight Posted May 17, 2012 Share #10 Posted May 17, 2012 BikeBandit, and MrCycles should have the gaskets for 10$s. http://www.bikebandit.com/houseofmotorcycles/1990-yamaha-venture-royale-xvz13da/o/m146609#sch127150 10.85 http://www.mrcycles.com/fiche_section_detail.asp?section=15269&category=Motorcycles&make=YAMAHA&year=1990&fveh=385 8.28 Both are #2 Link to comment Share on other sites More sharing options...
HotRodYJ Posted May 17, 2012 Author Share #11 Posted May 17, 2012 Anybody have a spec on the gasket thickness? We have a full gasket shop at work, I can have one computer cut tomorrow for free, if I know the thickness and maybe be running this weekend. Link to comment Share on other sites More sharing options...
JohnMidnight Posted May 17, 2012 Share #12 Posted May 17, 2012 I can check the thickness of the stator cover tonight with my digital meter. Still got a spare. Link to comment Share on other sites More sharing options...
dingy Posted May 17, 2012 Share #13 Posted May 17, 2012 .016"~.017" thick. Scans of gasket attached, they may help you. Scanner wasn't big enough to get it in one pass. Gary Link to comment Share on other sites More sharing options...
HotRodYJ Posted May 18, 2012 Author Share #14 Posted May 18, 2012 you guys are awesome. Thanks for the help!! Link to comment Share on other sites More sharing options...
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