SV650.org - SV650 & Gladius 650 Forum - View Single Post - Two Techie questions (Fast idle and STVA)

Sid Squid · 18-07-13, 12:37 PM

Does the STV wiggle about when you lift the engine speed? Use the Mark One Eyeball Method to check - take the airbox off and run the engine; do the secondary butterflies move something like they should?

If yes, and a fault with the STV isn't obvious, (despite the error code), set the fast idle when the engine is stone cold, at least do it when the gauge shows -- not a figure).
When the fast idle cam on the STV wears the initial start up speed is often fine, but the idle drops out before the motor warms. The fast idle screw will need only a teeny tweak to make a noticable change.

18-07-13, 12:37 PM	#9
Sid Squid No, I don't lend tools. Mega Poster Join Date: Jul 2003 Location: Skunk Works, Nth London Posts: 8,680	Re: Two Techie questions (Fast idle and STVA) Does the STV wiggle about when you lift the engine speed? Use the Mark One Eyeball Method to check - take the airbox off and run the engine; do the secondary butterflies move something like they should? If yes, and a fault with the STV isn't obvious, (despite the error code), set the fast idle when the engine is stone cold, at least do it when the gauge shows -- not a figure). When the fast idle cam on the STV wears the initial start up speed is often fine, but the idle drops out before the motor warms. The fast idle screw will need only a teeny tweak to make a noticable change. __________________ If an SV650 has a flat tyre in the forest and no-one is there to blow it up, how long will it be 'til someone posts that the reg/rec is duff and the world will end unless a CBR unit is fitted? A little bit of knowledge = a dangerous thing. "a deathless anthem of nuclear-strength romantic angst"