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post #1 of 6 (permalink) Old 04-13-2019, 05:51 PM Thread Starter
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Kinked Fuel Line

Hi,

My dad's bike is a 2001 750. Having trouble starting the bike and noticed the rear cylinder is cold and front hot. I noticed that the fuel line running to the rear is completely kinked at the fuel tap petcock valve. Not sure how it happened, but the hose barb is facing the wrong way (outward away from the bike). How would I go about turning it back in place without breaking it?

Here is a picture of the part I'm talking about:





On ours, it is facing the other way.

Thanks for any advice.
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post #2 of 6 (permalink) Old 04-13-2019, 06:40 PM
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The hose barbs are just pressed into the petcock body. You can very carefully rotate them with a pair of piers or needle-nose pliers, spread the load evenly to avoid breaking the barb.

When you route the hoses, make sure the hoses are level or running downhill toward the carbs. Loops and uphill sections will decrease fuel flow.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #3 of 6 (permalink) Old 04-13-2019, 11:12 PM Thread Starter
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Quote:
Originally Posted by Spockster View Post
The hose barbs are just pressed into the petcock body. You can very carefully rotate them with a pair of piers or needle-nose pliers, spread the load evenly to avoid breaking the barb.

When you route the hoses, make sure the hoses are level or running downhill toward the carbs. Loops and uphill sections will decrease fuel flow.
Thank you. I'll give it a try tomorrow, at which point I'll have more dumb questions about hoses that don't seem to connect to anything (1 from the gas tank, 1 from the coolant reservoir and 1 from the front of the bike somewhere)
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post #4 of 6 (permalink) Old 04-14-2019, 09:49 AM
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as far as the hoses..

1 from gas tank (fitting at bottom of tank near your crotch) is the vent hose. it runs to the middle of the bike, then down and ends in free air at or below frame level.
2 coolant reservoir hose. one goes to the thermostat housing up under the right front neck cover (over flow line just like on a car), other goes to below frame level as an overflow/vent for the reservoir
3 from front of bike, there will be one from right front 'ear' (air filter housing) to the 2 carb vent lines that T together. also, there is one from the bottom of the airbox at front of bike that is the drain for condensation or oil vapor condensation and just goes down low on bike.

ONLY ones that have connection to anything on the bike are the one from thermostat housing to reservoir, and the carb vent line.

2005 VN750

Sold 11-27-17
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post #5 of 6 (permalink) Old 04-14-2019, 11:39 AM
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Crankcase vent is also at the front. Larger hose, maybe 1/2" diameter, connects to the airbox.

2003-21k mi
Shaved w/UniPK92+Stock Jets-TPE/MOSFET-Shinko Tires-AGM batt-bags-chrome-LEDs...more
__________________________________________________ ____________
Repair Manual: http://www.mediafire.com/file/mj7z81..._Catalogue.pdf

Owner's Manual: http://www.mediafire.com/file/nscb5f...ers+Manual.pdf
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post #6 of 6 (permalink) Old 04-14-2019, 01:10 PM Thread Starter
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Thanks Spockster and michiganteddybear. The hoses all seem in order and the fuel line is unkinked. We must have tweeked it when moving the gas tank. My dad was having overheating problems, so we completely drained the coolant, took off the radiator and flushed it, filled everything up with distilled water. Currently waiting for it to cool back down to see how it looks. It ran really nicely though. The initial coolant that we drained was mostly brown and reeked of urine.

My dad was given this bike by his brother after my dad's '87 drowned in hurricane Sandy. My uncle took it to the dealership for service right before giving it to him. It ran like garbage though. Wrong spark plugs were put in and were improperly gapped (not even close), wasn't charging and now the urine coolant. I'm guessing someone at the dealership was pissed off about something (they wound up shutting down shortly afterward).

Hopefully he has some trouble free miles ahead.
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