Coolant leaking into the engine of a Polaris 400 ATV can be caused by several issues, including a blown head gasket, a cracked cylinder head, or a damaged engine block. These problems can create a pathway for coolant to mix with engine oil or enter the combustion chamber, leading to performance issues and potential engine damage. Regular maintenance and timely inspection of the cooling system can help prevent such leaks. If a leak is suspected, it’s important to address it immediately to avoid further damage.
the mechanical seal on the water pump is out
To check the coolant in a 1995 Polaris ATV 400 liquid-cooled model, first ensure the engine is cool to avoid burns. Locate the coolant reservoir, typically near the radiator, and check the fluid level against the marked indicators. If the level is low, add a suitable coolant mixture. Always use the recommended coolant type for your ATV to ensure optimal performance.
They recomend a 50-50 mix of water and antifreeze
counterbalancer is bad
29 hp taken from Polaris website. They have there 400 ho Ranger listed as 29hp and it has the same 455cc carb engine as the Sportsman 400 ho
There is no valves as it is a 2-stroke engine .
A Polaris 400 Xpress transmission is generally not compatible with a Polaris 300 Xpress due to differences in engine size, power output, and mounting configurations. The 400 model is designed for a larger engine and may have different gear ratios and components. It's essential to consult the specific service manuals or a Polaris dealer for precise compatibility information before attempting any swap.
The 1995 Polaris ATV 400 is equipped with a four-stroke engine, not a two-stroke engine. This model features a liquid-cooled system designed to maintain optimal operating temperatures. Polaris ATVs from that era typically utilized four-stroke technology for better efficiency and reliability.
400 polaris sportman has 455cc
2 stroke
SAE 10w30 synthetic is a great choice.
The alternator, or stator, is behind the pull-start cover on the right side of the engine.