.035 gap
There isn't an 850 venture. Only a 1200 and 1300.
I've got a better question, why is this question in the Chevy venture forum ?
The 1983 Yamaha Venture Royale was manufactured in Japan. It was produced at Yamaha's factories, known for their high-quality motorcycle engineering. The Venture Royale was a touring bike that combined comfort and performance, appealing to long-distance riders.
The Yamaha Venture was manufactured between the years 1983 and 1993. This motorcycle was produced in two forms, the Mk1 and Mk2. The Yamaha Venture was brought back in 1999 and renamed the Royal Star Venture.
it is 0.80mm
100% Synthetic any major brand.
The fuel capacity for a 1983 Yamaha Venture is approximately 5.8 gallons (22 liters). This includes a reserve capacity of about 1 gallon (3.8 liters). The design allows for long-distance touring, which is one of the bike's key features.
To address high HC emissions at idle for a 1983 Yamaha Venture, start by checking and cleaning the carburetors to ensure proper fuel-air mixture and eliminate any blockages. Inspect the ignition system, including spark plugs and wires, to ensure they are functioning correctly and providing a strong spark. Additionally, examine the exhaust system for leaks that may affect emissions readings and consider adjusting the idle speed and mixture settings to comply with emission standards. Regular maintenance and tuning can significantly improve idle emissions.
Depends on what model and where you live? Mopeds are worth less in more rural areas and worth the most in any city...in excellent condition...Yamaha chappy- 500-1200$, Yamaha qt50 200-750$, Yamaha Towny 400-900$, Yamaha champ 500-1200$, the more rust and the more plastic the bike has on it the less its worth...
I'm not sure, but if you go to venturerider.org, you can find a lot of info. Someone there will probably have that answer. Tell 'em 86er sent you! I ride an 86 Venture.
So what, exactly, is the question? I have changed the oil in this bike, so what is it you want to know?
Most of that older stuff was around 32 thou.