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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: erictyler11 on July 12, 2015, 03:09:07 PM

Title: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 12, 2015, 03:09:07 PM

Noticed this build up inside the fuel tank, as well as a broken, pre-fuel pump filter and the original fuel filter (think its time for a new one? ! :p).

If anyone wants to comment and fill my novice head with information, i am all eyes

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 12, 2015, 07:54:46 PM

Welcome to motobrick.com, nephew :)

How many miles on your odometer? I recall it was really low.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 12, 2015, 09:16:46 PM

FYI - Here's what the inside of my tank looks like today.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 12, 2015, 09:57:45 PM

I believe the mileage is around 25k.

I must say that is much different than what mine looked/looks like. I used a brillo pad to where I could reach, unfortunately all of the oxidation has not been removed.  I did try to remove the plate on the underside of the tank, however that did not fare well. The screws are in TIGHT. I used penetrating oil followed by a nice bump with the  screwdriver = no progress.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: Scott_ on July 13, 2015, 07:29:00 AM

Not sure how well the process would work without removing the sending unit, or if anyone is even doing it anymore, but there was a day when some machine shops would steam clean the insides of fuel tanks. (to prep them for welding repair)

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: Mooseman on July 14, 2015, 12:28:10 PM

Tim, what did you use to clean the inside of your fuel Tank? Looks beautiful..

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 14, 2015, 02:47:40 PM

Nuthin'

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 14, 2015, 08:08:41 PM

May I have some 'Nuthin' ?

The steam cleaning sounds like a fantastic idea. It's likely I won't go that route for the mere cause of trying to keep expenses low.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 14, 2015, 08:19:16 PM

Just read a thread where some suggest vinegar will clean out a fuel tank. Apparently radiator shops can clean out a fuel tank to like-new condition too. Might be worth a phone call.

Otherwise clean fuel and a bottle of Techron for the next dozen fill-ups might do the trick too.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: MonkeyMcBean on July 14, 2015, 10:00:38 PM

where do you get this "clean fuel"?

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 23, 2015, 06:28:15 AM

Question/issue: I originally took apart my track because something is leaving somewhere. I originally thought it to be fuel. Whatever is leaking looks like this yellowish stuff coming from somewhere above?  and landing near the fuel injectors. No apparent leaks were found during my original, thorough gas tank evaluation. Please help. I'm going to ride today and see whatelse happens with a bit more fuel added

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 23, 2015, 09:14:45 AM

How's your coolant level? Easy to check and change with the tank off.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 23, 2015, 09:15:35 AM

Quote from: TimTyler on July 23, 2015, 09:14:45 AM

How's your coolant level? Easy to check and change with the tank off.

It was near the low level when I last checked.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 23, 2015, 09:19:05 AM

The high and low levels on the coolant overflow tank do not accurately indicate coolant level in the bike.

With the bike on the center stand and the tank off, unscrew the coolant filler cap with your hand. It should be topped-off with coolant.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 23, 2015, 09:20:35 AM

Cool. Shoulda the bike be cold?  I'll check it out when I get home

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: TimTyler on July 23, 2015, 09:23:11 AM

Quote from: erictyler11 on July 23, 2015, 09:20:35 AM

Cool. Shoulda the bike be cold?

Umm, yeah.

Title: Re: Recent owner of a k75. Beginning to work on her in sections. First = Fuel Tank
Post by: erictyler11 on July 23, 2015, 09:26:59 AM

 Psh. Figured id ask.  Assumptions = problems. Even tho every motor vehicle I've used desired a cold situation