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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: El Kabong on January 23, 2019, 09:08:30 PM

Title: K75 not starting...something to do with the fuel pump
Post by: El Kabong on January 23, 2019, 09:08:30 PM

Hi, I took my tank off, it sat for a while and no the fuel pump doesn’t whir when I hit the starter. I pulled the pump, hooked it to a battery and nothing. Got a new fuel pump, installed it, still nothing. When I put a test light on the terminals of the pump there are a couple seconds of power, but the pump isn’t turning. The 4 pin connector shows power when hitting the start button and I can hear a relay click off after a couple seconds once I release the start button.  What should I be checking next? All the lights work, starter works, and I’ve cleaned the brushes on the starter.
Thanks

Title: Re: K75 not starting...something to do with the fuel pump
Post by: El Kabong on January 23, 2019, 09:42:42 PM

Nevermind :) apparently after pulling, testing, cleaning and retesting  and retesting and then cleaning and using a tiny screwdriver to tighten the female ends of the connector, and then reconnecting and wiggling...I needed to wiggle the connector one more time. Fired right up😂(http://[img][attachment id=1][/attachment])[/img]

Title: Re: K75 not starting...something to do with the fuel pump
Post by: Laitch on January 24, 2019, 02:07:48 AM

I encourage you to replace that four-pin connector altogether before another failure stalls you in fast-moving traffic or somewhere that you'd rather not be.

Title: Re: K75 not starting...something to do with the fuel pump
Post by: Martin on January 24, 2019, 04:43:38 AM

As per Laitch replace it preferably with a waterproof one.
Regards Martin.

Title: Re: K75 not starting...something to do with the fuel pump
Post by: rbm on January 24, 2019, 07:29:02 AM

I would echo that advice.  If you do decide to replace the connector, choose a waterproof AMP SuperSeal 4-way connector or similar.  These are available on The Bay for very cheap.  Search "4 way 1.5mm waterproof electrical connector".

Title: Re: K75 not starting...something to do with the fuel pump
Post by: mdk_mdk on January 24, 2019, 08:03:49 AM

Would something like this work?
https://www.amazon.com/MUYI-Waterproof-Electrical-Connector-Terminals/dp/B01FU6BBG0 (https://www.amazon.com/MUYI-Waterproof-Electrical-Connector-Terminals/dp/B01FU6BBG0)

Title: Re: K75 not starting...something to do with the fuel pump
Post by: Filmcamera on January 24, 2019, 08:15:31 AM

Yes, that looks perfect for the job I would say

Title: Re: K75 not starting...something to do with the fuel pump
Post by: El Kabong on January 24, 2019, 10:09:10 AM

Thanks, I’ll get one of those ordered.