Can't rev engine.

pedroenespana · Nov 1, 2011

Hi all,

Got a problem with my TW200. Been in the garage for a few months, unused & when I came to start it, will start ok using the choke & can rev it using the choke but when I try to open the throttle it just dies. I have checked the plugs and cleaned the carb out (with the help of the usefull guide in this forum), but its still the same.

Could it have anything to do with the petrol going "stale"?

Any tips or comments greatfully apreciated.

Peter

TuggerHiller · Nov 1, 2011

check the breather........possible mouse nest?

rm_hm · Nov 1, 2011

Could you tell us what year the bike is...

Someone else had a similar problem over at ADV

http://www.advrider.com/forums/showthread.php?t=565203&page=2

pedroenespana · Nov 1, 2011

Rich said:
Could you tell us what year the bike is...

Someone else had a similar problem over at ADV

http://www.advrider.com/forums/showthread.php?t=565203&page=2

Yeah I saw that thread when I did an earlier search.

The Bike is from 2005 I believe. It has low milage & has always been garaged so is clean and in good condition. There was no gunk in the Carb when I opened it up. Any thoughts on the petrol being stale?

qwerty · Nov 1, 2011

If your petrol is contaminated with ethanol it's probably gone bad. Drain the tank and carb and refuel.

If that doesn't do the trick, you probably still have a blockage in your carb or a buggered float level.

pedroenespana · Nov 2, 2011

Ok, thanks for the replies. I'm going to change the fuel & will report back what happens.

Peter

jwtwrider · Nov 2, 2011

pedro said:
Ok, thanks for the replies. I'm going to change the fuel & will report back what happens.

Peter

dont forget to drain the float bowl

nuckingfutts · Nov 2, 2011

I had a similar issue. My bike would start right up and purr like a kitten, but when I tried to make it accelerate, it would fall flat on it's face. After some trial and error, with a lot of help from lzrdbrth, I found the carb slide had a small tear in it. The first time I examined diaphragm, I didn't see it. It took stretching out the rubber to find the tear. Replaced, and now all is good. Just my experience.

pedroenespana · Nov 4, 2011

Ok,so I changed the fuel & it seemed a little better but a long way from perfect. Took it into see a mechanic who cleaned the carb (I suppose properly as I had already cleaned it twice) and now it runs fine. Looking back, maybe I should of cleaned it a third time after changing the fuel but was getting a bit fed up at that point. The mechanic advised me to drain the carb before leaving it in tha garage for a long period of time. Here (in Spain)I suppose the petrol isn't the cleanest.

Thanks for replies.

Peter

pgilles · Nov 4, 2011

pedro said:
Ok,so I changed the fuel & it seemed a little better but a long way from perfect. Took it into see a mechanic who cleaned the carb (I suppose properly as I had already cleaned it twice) and now it runs fine. Looking back, maybe I should of cleaned it a third time after changing the fuel but was getting a bit fed up at that point. The mechanic advised me to drain the carb before leaving it in tha garage for a long period of time. Here (in Spain)I suppose the petrol isn't the cleanest.

Thanks for replies.

Peter

I doubt cleaning it a 3rd time did anything, unless you missed spots the first time around. You may have not had the diaphragm seated properly. The little o-ring in the diaphragm may not have been seated or it was missing. I forget if you can mismatch the main jet and the pilot jet on the TW, but possibly you did that.

Either way, glad you're good to go now. Don't lose confidence attempting other work on the bike!! That sometimes can be a big hurdle to get over when something like this happens!!

Skyking · Jan 12, 2012

Code:

I had a similar problem with mine. The rubber air intake under the seat was almost completely closed off with a dirt dauber nest. There were several others deeper down in the airbox, and I had several dozen other nest in all sorts of nooks and crannies around the inside of the plastics, under the tank, on and around the engine, and light/instrument cowling. The bike had been sitting for several months out on the porch. These nest don't wash off with a water hose either. They have to be knocked off or scrapped out. I'm going to buy a bike cover so I don't have to go through it all again.

qwerty · Jan 13, 2012

A bike cover won't stop daubers, they'll just fly up underneath it.

TeeDubs · Jan 14, 2012

Try letting the bike warm up with the choke on, mine does this sometimes when it hasn't been run in a while

rm_hm · Jul 31, 2012

You need one of those bike bubbles

Skyking · Aug 31, 2012

Where in tarnation did you find that there bubble? I'd shore like one fur myself?

Can't rev engine.

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