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Phone: 435-494-1975


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Replacement Honda EU2000i Spark Plug Cap

Replacement Honda EU2000i Spark Plug Cap

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Is your new 2017 Honda EU2000i running rough?

Hard starting or dies under load?


A defective spark plug cap may be the cause as good connection with the spark plug is not being made. This cap affects gasoline & propane operation, but may manifest itself more on alternative fuels. Affected serial numbers are listed in the video with easy fix instructions. The “quick fix” in the video IS TEMPORARY. You will not have any issues down the road if you replace this part, but they will reappear if the part is not replaced.

Affected Serial # range EACT-1623182 thru EACT-1845559



Honda Eu2000i “Running Rough” or Hard Start 2017 fix – YouTube

Video will open in a new window




The Honda part # is 30700-Z39-C91.

Customer Reviews

Based on 11 reviews
Jon Schacht
True to their word on the parts and the results were even more true.

Well I purchased the Propane converter, followed the instructions for my EU200i and it took me 45 min to complete the task. Three pulls and bingo it started. Ran a little rough and once I looked into the possibilities of the problem I ordered the spark plug cap replacement for my 2017 gen and once a gain three pulls and bingo. So now I am on the hook with my wife with repairing a problem with the washing machine. Ays if you can do these with your toys how about my washer. Any ideas?

Donald R. White

Works just fine

Paul Hills
Propane conversion kit

This week, I am installing my 3rd conversion kit for my backup generators. I first purchased another manufacturer's kit, but was completely unimpressed. Not just with the quality of the product but their customer service. With Hutch Mountain, any time I have called with an install question, they either answer and help me or they call me back the next day if its after hours. I would recommend this companies products to anyone!!!

Hey Paul thanks for the feedback your awesome man.

Matthew W.
work great

work great

Roger C.
Honda 2000

Fixed my 2017 generator.