advice on the cb125tdc.... - SV650.org

21-10-04, 05:57 PM

The bike will tick over without the choke, however you go to pull away and there is no power...it dies on you..if you blip the throttle a few times it will pull away..but it just seems alittle gutless..(i know i have been riding my SV..) if you pull the choke lever it will die on me...

I am guessing this is something to do with the carbs, possibly the jets being partially blocked?!?

any other ideas

Regards

Fraser

21-10-04, 06:02 PM

Sounds like you need a carb rebuild kit and to set the floats. I'm guessing this bike is older and spent some time sitting?

You should replace...
gaskets & o-rings
needle valve & seat

21-10-04, 06:12 PM

Quote:

Originally Posted by donniej

Sounds like you need a carb rebuild kit and to set the floats. I'm guessing this bike is older and spent some time sitting?

You should replace...
gaskets & o-rings
needle valve & seat

Yes the bike was first registered in 1985...and has spent 2 years in a garage...how did ya guess...

21-10-04, 07:33 PM

I know this sounds a bit random, but with a cg125 I used to have (quite similar except it's a single) I had a very similar problem. The bike would do all of that if it got left for more than a few weeks. It turned out it was a combination of rubbish rings and probably fuel degrading in the carbs.
A tablespoon of oil into the bore and kicking it over alot, then fresh fuel and alot more kicking and it would eventually get going properly.

Big Bad Al · 21-10-04, 08:23 PM

Fraser, there is a substance you can get from Halfords - (the name escapes me - sorry) that is like standard carb cleaner but much, much stronger. Some kind of petrol distilate. This may be worth a try with a can of compressed air before doing a carb strip. Also worth replacing the fuel filter and cleaning the fuel valve and pipes with comp air.

Before I used this on a Ninja that had sat idle for a good couple of years I read lot's of stuff off google groups about it's usage. The opinion was mixed - some were of the view that the substance can also damage rubber seals if it's strong enough to disolve years worht of fuel varnish. maybe worht a try if you don't fancy a major job.

21-10-04, 10:30 PM

Thanks for your help peeps, will have to have a closer look ( if it ever stops raining)lol

Cheers

21-10-04, 10:50 PM

Quote:

Originally Posted by fraser01

Thanks for your help peeps, will have to have a closer look ( if it ever stops raining)lol

Cheers

If you did not drain the carb , then when you take the float bowl off be prepared for a substance simmilar to treacle in there clogging everything .

or the opposite condensation that will have furred up the jets with verdigree (spelling)

lots of TLC cleaning or new jets is the way

21-10-04, 05:57 PM	#1
fraser01 Guest Posts: n/a	advice on the cb125tdc.... The bike will tick over without the choke, however you go to pull away and there is no power...it dies on you..if you blip the throttle a few times it will pull away..but it just seems alittle gutless..(i know i have been riding my SV..) if you pull the choke lever it will die on me... I am guessing this is something to do with the carbs, possibly the jets being partially blocked?!? any other ideas Regards Fraser

21-10-04, 08:23 PM	#5
Big Bad Al Member Join Date: Jul 2004 Location: West London Posts: 188	Fraser, there is a substance you can get from Halfords - (the name escapes me - sorry) that is like standard carb cleaner but much, much stronger. Some kind of petrol distilate. This may be worth a try with a can of compressed air before doing a carb strip. Also worth replacing the fuel filter and cleaning the fuel valve and pipes with comp air. Before I used this on a Ninja that had sat idle for a good couple of years I read lot's of stuff off google groups about it's usage. The opinion was mixed - some were of the view that the substance can also damage rubber seals if it's strong enough to disolve years worht of fuel varnish. maybe worht a try if you don't fancy a major job. __________________ SFV650 in black with Evotech tailtidy, R&G Aeros and Heated Grips, Puig fly screen, Pipe Werx GP style race exhaust. Whoop! Previously.... Black SVS - DHM's Heated Grips Airblade Iridium Double Bubble Screen Beowulf end can and Evotech tailtidy. 3/7/2004 - 26/6/2015.

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21-10-04, 06:02 PM	#2
donniej Guest Posts: n/a	Sounds like you need a carb rebuild kit and to set the floats. I'm guessing this bike is older and spent some time sitting? You should replace... gaskets & o-rings needle valve & seat

21-10-04, 07:33 PM	#4
Carsick Guest Posts: n/a	I know this sounds a bit random, but with a cg125 I used to have (quite similar except it's a single) I had a very similar problem. The bike would do all of that if it got left for more than a few weeks. It turned out it was a combination of rubbish rings and probably fuel degrading in the carbs. A tablespoon of oil into the bore and kicking it over alot, then fresh fuel and alot more kicking and it would eventually get going properly.

21-10-04, 10:30 PM	#6
fraser01 Guest Posts: n/a	Thanks for your help peeps, will have to have a closer look ( if it ever stops raining)lol Cheers