Problems!

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tehbobin
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Joined: Tue Jul 03, 2012 5:52 pm

Problems!

Post by tehbobin » Thu May 09, 2013 11:07 am

Had the bike just over a year now, recently services (plugs, oil change, air filter, chain/sprockets) only done 15k miles up till I bought it done another 15 since then.

A little while ago had problems with it coughing, spluttering and cutting out. Turned out the air intake hoses were split, got them changed and balanced carbs and everything was fine.... For a while.

Now when I start the bike, starts up fine (with choke, still a bit cold even though it's may..) sounds fine when ticking over, but when I go to set off there is very very little power, just chugs away very loudly, at full throttle in 3rd was struggling to do 35/40, just slowly chuggs along. Kinda sounds like it's running out of fuel but I've had the fuel tap off and checked all that, nothing is blocked.

A few days ago it would only accelerate as normal in one very specific throttle position, any more throttle and more chugging, now it need 3/4 throttle to even set off.

I had the tank off and gave it a clean as some rain water got in due to the fuel cap cover leaking (something which I will replace soon) and I forgot to put the bike cover on I ran some carb cleaner and that stuff for getting rid of moisture, emptied the tank and put in new fuel too.

When the tank was off I drained the carbs and there were some water droplets in the fuel along with quite a bit of black sh1t.

it seems to be getting worse. Once bike warmed up, if choke is put on full the bike cuts out.

Any ideas? Was thinking possible sh1t inside my carbs, but as a bit of a noob was worried about taking them to bits. What would be the symptoms of dirty carbs? Looked online but everyone mentioning it stalling and cutting out but it never does, ticks over fine, well just a bit louder than usual, but got micron cans on and they are LOUD!

If it sounds like mucky carbs - How difficult is it to remove and clean the carbs, anything I need to be careful of?

Thanks for reading! :oops:

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Mincehead
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Re: Problems!

Post by Mincehead » Thu May 09, 2013 11:50 am

DO NOT shit in your carbs it`s not pleasant cleaning it out again! :wink:

Seriously:
It`s easy to remove and strip the carbs, you can bet on finding worn needles and emulsion tubes but have you checked your coils yet?
Are both exhaust pipes getting hot when the bike`s running?
Oh and by the way use the search facility on here, `carbs` will throw up plenty of threads on here that you can refer to for guidance. :wink:
LOUD PIPES SAVE LIVES

rogerc41
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Joined: Wed May 09, 2012 10:13 pm

Re: Problems!

Post by rogerc41 » Thu May 09, 2013 5:20 pm

+ 1 with Mincehead, carbs aren't too bad to take apart.

I just done mine, twice!! If you don't have a manual or even if you do, take pictures of everything as you go along. If they look gummed up or varnished up inside give them a good clean whilst your there. Air dusters for computer cleaning are good if you don't have access to a compressor to blow through airways etc. I used cheap coke to clean my parts/jets in, works a treat. Leave to soak for approx 60 mins or until brass items are shiney once again, rince in cold water then blow through to dry. If you need new emulsion tubes, i got mine from here http://www.kedo.com/. From germany, cheapest i found and arrive in a couple of days.

Hope you get sorted soon.
'97 TRX850 - Silver engine, Black frame, Red bodywork (currently).
'02 CBR600F Sport.

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