I bought a used YS 4500 with the B&S 20hp single cylinder engine with about 100 hours on it. The mower cuts, mulches and bags great but the engine is a puzzle to me.
1. On cold starts it seems to be searching for a stable idle but can't find it. It runs fine when the rpm is raised.
2. When turned off it seems to flood easily.
3. Sometimes it will back fire when turned off at a higher rpm.
4. Dang muffler is really loud. Are they any quieter when new?
5. Is there a washable air filter available for this engine?
Any suggestions are appreciated!
Jim
1. On cold starts it seems to be searching for a stable idle but can't find it. It runs fine when the rpm is raised.
2. When turned off it seems to flood easily.
3. Sometimes it will back fire when turned off at a higher rpm.
4. Dang muffler is really loud. Are they any quieter when new?
5. Is there a washable air filter available for this engine?
Any suggestions are appreciated!
Jim