Loosing Power

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superlite
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Re: Loosing Power

Post by superlite »

skinnydog0_0 wrote:Mine has the HRC tap mod, and it doesn't like running on reserve. As soon as i have to go to reserve it starts feeling very wooly, like it is only firing on 3. as soon as i fill her up it is fine.
Likewise. Gravity feed doesn't like corners on a low tank!
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vfrman
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Re: Loosing Power

Post by vfrman »

I am betting on the breather valve.
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Re: Loosing Power

Post by SouL »

vfrman wrote:I am betting on the breather valve.
Either that or their is a air bubble in the system that doesnt want to dissapear :roll:
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Re: Loosing Power

Post by vfrman »

SouL wrote:
vfrman wrote:I am betting on the breather valve.
Either that or their is a air bubble in the system that doesnt want to dissapear :roll:

LOL. Doubtful there. It really sounds like the valve isn't opening allowing air into the tank as fuel is used up.
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Re: Loosing Power

Post by SouL »

One thing I have realised is that the bike runs fine until it's boarding on Reserve then it starts playing up even after turning the tank valve over to reserve. Once the tank is full there doesnt seem to be a problem WTF!?!?!?

Could it be that air is getting into the fueling system and creating a air lock of some sort? :|

Reserve is like my "need to fill up!" warning. If they bike is going to start cutting running rough and cut out when the tank gets low or I turn over to reserve....the I'm in serious sh17
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Re: Loosing Power

Post by skinnydog0_0 »

SouL wrote:One thing I have realised is that the bike runs fine until it's boarding on Reserve then it starts playing up even after turning the tank valve over to reserve. Once the tank is full there doesnt seem to be a problem WTF!?!?!?

Could it be that air is getting into the fueling system and creating a air lock of some sort? :|

Reserve is like my "need to fill up!" warning. If they bike is going to start cutting running rough and cut out when the tank gets low or I turn over to reserve....the I'm in serious sh17
superlite wrote:
skinnydog0_0 wrote:Mine has the HRC tap mod, and it doesn't like running on reserve. As soon as i have to go to reserve it starts feeling very wooly, like it is only firing on 3. as soon as i fill her up it is fine.
Likewise. Gravity feed doesn't like corners on a low tank!
:whistle:
An NC is for life, not just for Christmas!
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Re: Loosing Power

Post by SouL »

Ye I saw that but I never had this problem before and it's only recently I take it you talking about the bends in the fuel line?...Yours maybe doesnt like the bends but mine hates it to the extent that it gets so rough that it cuts out! Is there some way to sort the problem out as this problem it obviously not on all the bikes :roll:
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Cammo
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Re: Loosing Power

Post by Cammo »

The reserve draw in the tank is separate to the main fuel draw.

If you take the tap assembly off the bottom of the tank you'll see the reserve uses a shorter fuel filter. Yours could be blocked, worth checking it.
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Re: Loosing Power

Post by SouL »

Yup done that infact stripped the entire fuel valve :poke:
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Re: Loosing Power

Post by superlite »

SouL wrote:Ye I saw that but I never had this problem before and it's only recently I take it you talking about the bends in the fuel line?
Not bends in fuel lines, bends in the road (the lean angle of the bike) :grin: . Because you've done the HRC fuel tap mod, it is no longer a vacuum fed fuel system - it is now gravity fed from the tank to the carbs. If you haven't had the problem before, it's logical that it's most likely the modified fuel tap causing the issue :pray:
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