How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Curtis B. Your Own Question
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 12172
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
Type Your Small Engine Question Here...
Curtis B. is online now
A new question is answered every 9 seconds

I have a 6.5KVA Onan generator ( early model - suspect

Customer Question

I have a 6.5KVA Onan generator ( early model - suspect around 1990)which works well, however I keep blowing the 25amp fuse from the starter to the positive side of the starter motor. Should this be a 25 or 30 amp fuse. Thanks, Warwick
Submitted: 12 days ago.
Category: Small Engine
Expert:  Hank F. replied 11 days ago.

What is the model number of the genset?

Customer: replied 11 days ago.
HankThe model number of my Onan genset is
6.5MDKOP26501C The M at the start is hard to read so it may be a different letter.
The serial number is *****
The problem appears to be the heavy current drawer on starting which blows a 25amp or smaller fuse, but a 30amp fuse appears to cope - is it o'k to continue to use a 30amp fuse. Warwick
Expert:  Hank F. replied 10 days ago.

There is no model MDKOP.

The letters MDK are fine, but the rest of it is questionable.

Can you carefully recheck the model number?

Also, you stated the fuse is "between the starter and the positive side of the starter motor". Can you please clarify this for me?