throttle fun

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throttle fun

Postby spooky » Sat Nov 07, 2020 8:17 am

MZ ts125, when idling tickover is fine on left lock or bars straight, turn full lock to the right and it increases speed. The throttle cable is good and has no kinks, its not jamming anywhere and the carb slide is seated properly, carb top tightened down correctly, no idea whats causing it !!! :D
RE classic 500, 1951 Terrot etd, 1970 Gilera Autostrada, Vespa T5 and the Black Pig !
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Re: throttle fun

Postby breakwellmz » Sat Nov 07, 2020 9:12 am

It`s not routed how it should be.
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Re: throttle fun

Postby DAVID THOMPSON » Sat Nov 07, 2020 9:34 am

i second that comment

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Re: throttle fun

Postby spooky » Sat Nov 07, 2020 9:46 am

Probab;y not but been like that for 8 years I know of, is there a good description of how it should be routed, happy to move it...
RE classic 500, 1951 Terrot etd, 1970 Gilera Autostrada, Vespa T5 and the Black Pig !
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Re: throttle fun

Postby dave47 » Sat Nov 07, 2020 11:20 am

AFAIK they all do that. Its because the old fashioned carb doesn't have an airslide screw. Rerouting the cable might improve it but won't eliminate it altogether. Probably best to set idle at right lock and remember to set the bars that way at traffic lights.
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Re: throttle fun

Postby spooky » Sat Nov 07, 2020 11:25 am

dave47 wrote:AFAIK they all do that. Its because the old fashioned carb doesn't have an airslide screw. Rerouting the cable might improve it but won't eliminate it altogether. Probably best to set idle at right lock and remember to set the bars that way at traffic lights.


thats how it is now, i might try to reroute it but as i said it has been like that for years, just seemed a bit worse this week, thanks
RE classic 500, 1951 Terrot etd, 1970 Gilera Autostrada, Vespa T5 and the Black Pig !
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Location: durham, england

Re: throttle fun

Postby Blurredman » Sat Nov 07, 2020 12:44 pm

I've had this on a few MZ's.. And they were routed correctly..

My resolution for the most part has been to lubricate the cable with soem nice lube, or slick oil, but also to check tension on the cable when the bar is pulled right.. I've also adjusted the cable so that it has slack when the bar is turned right. It does mean that the grip may have a bit too much slack in the neutral position- but as well as the above it has stopped my problem (on 3x bikes ....). They always did it turning right.
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Re: throttle fun

Postby spooky » Sat Nov 07, 2020 1:12 pm

That`s tomorrows job then, create some slack, i will report back, thanks
RE classic 500, 1951 Terrot etd, 1970 Gilera Autostrada, Vespa T5 and the Black Pig !
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Re: throttle fun

Postby Puffs » Sun Nov 08, 2020 5:47 am

Following a biased and flawed moderator choice (someone posting aggressive personal attacks is rewarded, while my technical posts are removed - behind my back & without any justification!), I have withdrawn from this forum.
Last edited by Puffs on Tue Apr 04, 2023 5:12 am, edited 1 time in total.
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Re: throttle fun

Postby spooky » Sun Nov 08, 2020 5:49 am

Took the bar end mirror off, slackened throttle and adjusted to best idle on full right lock, it now ticks over just slightly fast on right lock but acceptable, perfect straight ahead and just to say idling on full left, when it stops chucking it down i will go for a ride and see what it`s like when it`s hot.
RE classic 500, 1951 Terrot etd, 1970 Gilera Autostrada, Vespa T5 and the Black Pig !
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