your answer is not easy. do you want ratio or compression pressure. I would guess you are talking pressure, which on a stock engine is around 155 lbs.
stock lt500 goes 78mph but with a pipe jet kit and k&n air filter it will hit 85 mph
80mph a lt500 is a 4 wheel drive quad and tops out at 56 mph. However a lt500r is a race quad called the Quadzilla quadracer and stock will top out around 86 mph.remember these two quads are different one is lt500 and one is the lt500r alot of people dont know they are 2 different quads.
The LT500R used a NGK BR8ES stock, I ran a BR9ES which was a little cooler plug. To change the coolant there is a plug on the bottom of the water pump assembly, remove with and 10mm socket and fluid will drain. Take the rad cap off when draining and simply replace the drain plug and refill.
The stock compression ratio for a Suzuki QUV 620 is 10:3:1. Special spark plugs can increase that compression and the horsepower.
24 clicks of compression
To increase compression on your 1987 Suzuki Samurai, consider using a thicker head gasket to reduce the combustion chamber volume or milling the cylinder head to increase the compression ratio. Additionally, ensure that your engine is in optimal condition by checking for any leaks and ensuring proper valve timing. Upgrading to performance pistons or improving your intake and exhaust systems can also enhance overall engine compression and efficiency.
To adjust the brake cable on a Suzuki Vinson LT500, first locate the adjustment nut on the brake cable near the brake lever. Loosen the lock nut, then turn the adjustment nut to either increase or decrease cable tension until you achieve the desired brake lever feel. Once adjusted, tighten the lock nut securely to maintain the setting. Finally, test the brakes to ensure they engage properly without excessive play or dragging.
the fastest production four wheeler ever made to date is the suzuki lt500 quadracer (1987-1990) it would reach speeds of 80mph plus depending on the rider, government regulations no longer allow any four wheeler to do 80mph from the factory
Quadzilla /LT500 Because of it's extreme fire breathing 2 stroke 500cc power plant, built by Suzuki from 1987 to 1990, then banned from production because people were getting hurt.
buy a manual
Compression ratio is 8.6:1 Compression test, wet, should put you between, I think, 120 and 170.
Download the FREE Suzuki Samurai Shop Manual from http://www.suzukiinfo.com/ or visit zukikrawlers.com zn