Listed below are some frequently asked questions with their corresponding answers. We want each customer to have at least a basic understanding of what happens to a motor, why they need to be rebuilt and what is involved in the process.
Questions
Answers
Q: Do you build all of your motors the same or do you have an A grade motor and a B grade motor?
A: No. Every engine We build receives the same attention to detail and precision, however end results do vary slightly due to castings, etc.
Q: What maintenance is expected of me the racer to keep my Woltjer Engine running strong in between Rebuilds?
A: For Yamaha KT100s, HPVs and Comers, we recomend replacing carb kits every 1-2 Races, Cleaning carbon off the top of the piston every 2-3 races along with keeping up on regular maintenance items such as spark plugs, and air/ fuel filters.
Q: How often should I have my Yamaha, Comer or HPV motor rebuilt?
A: Depending on Use/Abuse the time varies quite a bit. Usually our customers get anywhere from 4- 10 races in between rebuilds to maintain peak performance.
Q: What Oil/Fuel Ratio do you recommend in your engines?
A: 8oz/ Gal
Q: Do your engines require a break-in period when I receive it?
A: Most engines are dyno-tuned at Woltjer, and then tested for performance, prior to leaving our shop, therefore, do not need a break-in session.
Q: How often do I need to change my piston in a Honda CR80/85?
A: Since every cylinder is ported for maximum horsepower, the piston life is decreased to approximately 45 minutes to one hour.
Q: Do I have to add oil to my crankcase in my new CR80/85?
A: No motor is shipped from Woltjer with any fluid., so you better add some. :)
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