Top 5 Tips to Diagnose Motorcycle, ATV & UTV Fuel Pump Problems

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Top 5 Fuel Pump Diagnostic Tips: rmatvmc.link/top-5-fuel-pump-...
If your machine is running roughly or not running at all, there is a good chance that a fuel pressure issue is the culprit. Although fuel pump problems are common, diagnosing exactly what the issue is can be a tricky task with so many other components coming into play. In this video, Charles shares his top 5 tips to diagnose fuel pump problems on motorcycles, ATVs, and UTVs.
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Chapters:
0:00 - Intro
1:12 - Fuel Pump Doesn't Cycle
2:44 - Holds Pressure With Key On
3:29 - Check Fuel Pressure Under Acceleration
3:56 - Low Pressure Causes Lean Condition
4:26 - Service Fuel Filters
5:49 - Bonus Tip 1: Heat Kills Fuel Pumps
6:01 - Bonus Tip 2: Pre-Filter Your Fuel
6:12 - Bonus Tip 3: Use Fuel Stabilizer

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Опубликовано:

5 июл 2024

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Комментарии : 16

@xzouix Год назад

Charles, you're the best! Very well explained, and it is obvious that having a motorcycle manual is necessary "tool" to have around.

@wisdomandthewoods7422 Месяц назад

Thank you, I don’t know why I am just now seeing your comment but I do appreciate it.

@gunghoadventures871 24 дня назад

Awesome

@pdloder 24 дня назад

My yfm700 grizzly gets power to the pump when during cycling when key is first turned on; but not when winding over starter motor. Any ideas?

@DirtyDovi Год назад

Interesting timing, I just replaced the fuel injection pump-motor on my WR250R Yesterday. The bike is basicly Brand New - sat for 1 winter, and the OEM pump crapped out.. Anyways.. Now w/ the new setup in, and 4.7 gal tank Topped Off, the 'low-fuel-LED-light" has come on and won't stop blinking. [No one seems to be able to provide a straight answer for fixing it either] If anyone has any advise/ideas - They'd be very much appreciated!

@ibrahimoualmakran5780 4 месяца назад

have the same issue on my xt1200z did you resolve it? if so any tips to look at?

@DirtyDovi 4 месяца назад

@@ibrahimoualmakran5780 Crazy Timing! A few hours ago, I'd charged up my WR and ***Tried firing it up... Nothing!! Full power, so, now it's either the relay/solenoid Or Another Dead Fuel Pump. [Pretty pissed off] We're going to be looking at it later on [Saturday afternoon] so as soon as I know more, I'll try to get back here to update! Funny enough - I don't think I saw the 'low fuel LED'... haha Sam -

@ibrahimoualmakran5780 4 месяца назад

@@DirtyDovi haha so you still on it? I will check the fuelpump relay next ( no power to the fuelpump connection when cycling the key). Thanks for the feedback !

@DirtyDovi 4 месяца назад

@@ibrahimoualmakran5780 Yuuup, and about ready to hit the thing w/ a flame-thrower! lol Just did a 2-day slow charge, cycled the key, and NOTHING.. No relay/No pump.. My buddy had to bail, but hoping he'll have his diagnostic equipment over here soon. *We're all in this one together! =D Sam -

@ibrahimoualmakran5780 4 месяца назад

@@DirtyDovi haha lol well we feel the same here very frustrating with my xtz 1200 was stored for 4 years: First: good wash, jumped with truck battery hit it with some brake cleaner fires right up for 2 seconds. Diagnosed the fuelpump wasn't running. Second: replaced the fuel pump, was stuck so replaced it with a bosch unit. Cleaned the fuel tank + fresh fuel New oil + oil filter But still no fuel prime... No power to fuelpump... Fuel level gauge blinking 8 times... Flaps don't open... No vacuum effect at intake... Swirl flaps not opening... Bike cranks fine And was running perfectly before storage Seems like I'm making it worse... I'm in no way an expert... just a young man trying to learn some bike stuff on my own (first motorcycle). Any tip is very appreciated .

@willard831 8 месяцев назад

Fuel pump wont cycle my wire diagram doesnt tell me what wire is the ground and power ? Cf moto z force 500

@wisdomandthewoods7422 Месяц назад

I don’t know why I am just seeing some of these comments. I hope you got your problem figured out. Thank you for watching.

@wisdomandthewoods7422 11 месяцев назад

My fuel pump only primes when the engine is cool. Once it’s warmed up and you turn the key on there is no fuel pump prime and no start until it’s cooled back down.