1990 JC20 ALCAST HONDA NSR 125 STARTING PROBLEMS!!

[DANNYBOI]

I HAVE A HONDA NSR 125CC JC20 ALCAST VERSION WITH STARTING PROBLEMS THE STARTER DIED SO THAT GOT REPLACED NOW THE BIKE JUST WILL NOT START IT TURNS OVER AND SPARKS AS IT SHOULD THE COMPRESSION IS FINE ANY IDEAS
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NSR YEHA

[Tattoo Artist]

try not typing in bold, may help?

[DANNYBOI]

sorry lol just about to crack with this it all sounds as if its wanting to fire up but just will not go!!!
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NSR YEHA

[cloric_tzr]

[DANNYBOI]

yes petrol on new spark plug new petrol cleaned airfilter ect
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NSR YEHA

[cloric_tzr]

av u tryed bumping her?
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[SCHOT_NSR]

is your battery charged i had a problem similiar so i stuk the charger on it and away it went just an idea mite be talkin rubbish but it worked for me lol
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if everything around you seems to be going well you obviously aint got a clue whats happening

[Tattoo Artist]

try putting a little fuel down spark plug hole and see if she runs for a few seconds, then checck fuel tap, fuel lines, check jets in carb arent blocked, check reeds are opening properly, check battery, check all of this then get back to me

[skatefreak]

Try bump starting the bike,
i know this dosnt sound like it makes much sense but for no
perticular reason my nsr is not to happy starting on the starter at the moment (will crank over for ages but not fire)
however give her a push, drop the clutch and she will start up the second i drop the clutch (dosnt make much sense really lol).

-Jvr

[DANNYBOI]

SHE BUMPS GOES FOR A MINUTE THEN CHOKES UP AND DIES
THERES A NEW BATTERY IN IT JUST CHARGING ATM IT WAS AT 10.5 VOLTS

IT ALL TURNS OVER AND TRYS TO BUT JUST WILL NOT GO
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NSR YEHA

[skatefreak]

Sounds like there is a restriction in the fuel getting to it.
If there is a blockage or tap isnt open (my experience) etc then the engine will fire up and rev up to maybe k1 but then just die off...

I know it dosnt help much but i'd suggest looking at fuel getting to the carb however, does the engine idle normally or does it sound different (deeper/hollow). can you rev the engine atall? throttle response?
-Jvr

[DANNYBOI]

no mate it just starts and dies
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NSR YEHA

[skatefreak]

open the throttle and it just makes a louder noise but not effect the throttle by any chance?

Certainly sounds to me like fuel not getting to it

Got that many times forgetting to open the fuel tap after first getting her heh.

Check fuels getting to get,
get onto nsr.co.uk and pick up a manual, take pictures and throw up a post around here if you have any troubles!

best regards

-Jvr

[DANNYBOI]

ENGINE TURNS OVER SPITS FIRE OUT EXHAUST PORT ALL SOUNDS AS IF WANTS TO GO COULD IT BE BECAUSE THERES ASDA 2 STROKE OIL IN IT
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NSR YEHA

[DANNYBOI]

bike still no change engines out of bike in shed all conected up had new gearoil new petrol and new plug no change turns over and over splutters every once in a wile but no start"!!
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NSR YEHA

[skatefreak]

I wouldnt have thought that the 2 stroke asda oil would stop the bike from running, it may cause the bike to blow up if its been run on it hard for a while but shouldnt cause starting problems...

What are the symptoms at the mo.
Is the engine firing, trying to fire or just turning over with no signs of life?

-Jvr

[DANNYBOI]

TURNS OVER AND OVER TRIES TO FIRE EVERY SO OFTN
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NSR YEHA

[baldy]

Sounds like it needs new piston and rings. I have had 4 bikes that did exactly that due to the rings being fudged.

How did you test the compression? Did you use a compression tester?
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