LOOSING POWER !!!!!!

[AllRider]

The bike has lost power and it very boggie. 


I had a look at the diaphragms in the carbs, no tears or holes they look fine, put the carbs back together and air box back on, the bike had full power again.... for about 2 minutes...


I did nothing else apart from take the air box off, released the carbs to make it easier the take the diaphragms out, then put all back together, didn't change or adjust  anything... 

Im gonna check HT leads and plugs later, but apart from that any other suggestions...


Cheers guys...  

[De Graaf van Salland]

Fuel pump?

[AllRider]

when i get a chance i will check, that's been added to my list now, i dont so pose anyone knows how much an NTV650 full pump should pump a minute?

Thanks again.

[Guest]

Hope this helps: -

Fuel pump
Flow rate
    NTV600 and NTV650 models ......   600cc/min @ 10v
    NT650 models .........................   600cc/min @ 13v

"The minimum flow rate required is 600cc per minute,
if the flow rate recorded is below the minimum required,
then the fuel pump must be renewed."

[AllRider]

Cheers mate the really helps i'll be that tonight or when im back from hols....

Many thanks...

[skinne]

Also check that the fuel tank is venting OK. This cropped up on a fair few Hawks when I was involved in that community. Different tank I know, but worth a stab.

E

[brendan0]

Yep, +1 to that...very easy to fall for the blocked fuel cap vent trick, have done on British and Jap bikes.
G
Plugs worth checking, though one of them is v hard to get to unless you have long fingers... I eventually got to all of them, with patience!!

Fuel filters! Water in fuel? Wet air filter? Check the obvious stuff before the expensive stuff...

Good luck!
B
And happy Xmas.

[AllRider]

That's me back in London, so I'll be going over the bike to fix it when I have time.

The tank I didn't even think of that cheers for the tip, I'll be going over the bike soon so ill be letting you know ow what happens.

Thanks for all the suggestions.

THANKS AllRider.

[AllRider]

I think it's the carb, I undid the drains screws and no petrol came out the back one..

I think the inlet,float valve, little mesh filter my be blocked.


When I get some time off work ill have them off and cleaned.