Anybody stretched a throttle return spring too far?
Anybody stretched a throttle return spring too far?
Author
Discussion

steviejasp

Original Poster:

1,646 posts

194 months

Saturday 10th March 2012
quotequote all
Is it even possible?
Just had a little bit of a play with a motor sickle.
Now throttle sticks and only really slowly returns to idle.
If you get out under the bonnet, you can manually close the throttle the last millimetre to the idle stop.
Couldn't be anything else could it?
Many thanks
Steve

Tacchino

324 posts

183 months

Saturday 10th March 2012
quotequote all
Good effort - now that's what I call trying thumbup

aide

2,278 posts

193 months

Saturday 10th March 2012
quotequote all
have had great fun in the cerb swatting bikes smile

steviejasp

Original Poster:

1,646 posts

194 months

Saturday 10th March 2012
quotequote all
Well, it would have been rude not to!

Can anybody tell me if their 4.5 has two springs?
Mine has only one. Perhaps one snapped?

aide

2,278 posts

193 months

Saturday 10th March 2012
quotequote all
I think the spring that is connected between the throttle linkage and the bracket that the the intake is mounted on is only a safety measure.
On each bank there is another return spring for each set of butterflys I believe.

Gazzab

21,637 posts

311 months

Saturday 10th March 2012
quotequote all
I have had countless issues with springs and throttle bodies - the issues being i) the rate at which revs drop, particularly when changing down (or at least thats when its most frustrating) and ii) the stiffnewss of the throttle.
I have had the throttle bodies reworked 2 or 3 times at Raceproved and springs changed two or three times. The solution came from a special spring from Julian / Joolz - a progressive one. All throttle problems resolved.

steviejasp

Original Poster:

1,646 posts

194 months

Saturday 10th March 2012
quotequote all
Splendid! Anybody got a contact number for Joolz these days please?

jackwibble

664 posts

188 months

Saturday 10th March 2012
quotequote all
He is a bit under the radar at the mo supposed to be setting up near Warwick, he pops up on here as spitfire4v8 and i think he is still on e bay doing induction and stuff

steviejasp

Original Poster:

1,646 posts

194 months

Saturday 10th March 2012
quotequote all
Thank you, Hopefully he will read this thread!

steviejasp

Original Poster:

1,646 posts

194 months

Sunday 11th March 2012
quotequote all
UPDATE

It's not the spring. I've shortened it and remade the ends and it still hangs a bit.
The throttle cable is frayed at the pedal end! New one ordered.....