12425 - Established June, 2013 - all GRiSO, all the time...
 
HomeFAQRegisterLog in
Share
 

 Stepper motor shutoff

Go down 
AuthorMessage
supercoyote
Tanabuso
Tanabuso
supercoyote

Posts : 69
Join date : 2015-06-16

Stepper motor shutoff Empty
PostSubject: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Fri Apr 13, 2018 6:41 pm

For any of you that have done the in line shutoff to the stepper motor, what kind of valve did you use? All I've been able to find in a small valve is 1/4" fuel shutoffs for lawn mowers, any suggestions on something for the 3/8" of the hose?
Back to top Go down
goozy
Squinternotto
Squinternotto
goozy

Posts : 1
Join date : 2014-04-08

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Sat Apr 14, 2018 8:50 am

I found a direct fit at my local NAPA a few years ago.  Black plastic body red plastic knob. Looks factory.
Back to top Go down
GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve

Posts : 228
Join date : 2016-04-14

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Sat Apr 14, 2018 12:50 pm

A dirt bike aftermarket fuel valve is what I've installed.
Back to top Go down
paulbrice
GRiSO Capo
GRiSO Capo
paulbrice

Posts : 755
Join date : 2015-01-04
Age : 58

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Mon Apr 16, 2018 3:34 am

I fitted this [You must be registered and logged in to see this image.]

It fits the original piping on one side & I bought some extra pipe so it sat conveniently.....sad to say it has been useless and I recently removed it. I don't think the stepper issue is repeatable enough to use the tap as a quick fix & would have to re-balance the air bleed if you used it permanently
Back to top Go down
supercoyote
Tanabuso
Tanabuso
supercoyote

Posts : 69
Join date : 2015-06-16

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Mon Apr 16, 2018 7:01 am

I ended up using the exact same one. My confusion was coming from the fact that the hose is 3/8 from sitting on the airbox nipple and expanding, but elsewhere is actually 1/4. I like to assemble parts for a project before I start it, but sometimes you don't see the whole picture until you start cutting Very Happy
Back to top Go down
bahamazoo
GRiSO Capo
GRiSO Capo
bahamazoo

Posts : 918
Join date : 2015-08-09
Age : 55

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Mon Apr 16, 2018 1:41 pm

[You must be registered and logged in to see this link.]

this works a treat!
no issues since fitting
Back to top Go down
supercoyote
Tanabuso
Tanabuso
supercoyote

Posts : 69
Join date : 2015-06-16

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Mon Apr 16, 2018 6:38 pm

Has this made a big difference for those of you that abandoned the stepper? I haven't had a chance to get out and test thoroughly after installing the shutoff, but I'd like to know if it got rid of some of the snatch when warm and the high idle problem?
Back to top Go down
Oz1200Guzzi
Don Abbondio
Don Abbondio
Oz1200Guzzi

Posts : 3634
Join date : 2014-03-13
Age : 64

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Mon Apr 16, 2018 8:51 pm

High idle is fixed for sure. Snatchiness is between throttle cable adjustment and a good map.
Back to top Go down
paulbrice
GRiSO Capo
GRiSO Capo
paulbrice

Posts : 755
Join date : 2015-01-04
Age : 58

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Tue Apr 17, 2018 12:23 am

Agree it's just for high idle but it didn't work at all for me. Engine won't idle with the valve shut completely & trying to balance random high idle problem out by partial twiddling valve sitting in traffic was PITA easier solved by blipping throttle or just waiting for it to set down.....I can imagine (cos I've been too lazy to check) you could shut it in and open the air bleed a bit to stabilise idle IF the actual cause is the stepper itself

I just pull & clean the TB assembly when it gets really bad which isn't often.



Back to top Go down
bahamazoo
GRiSO Capo
GRiSO Capo
bahamazoo

Posts : 918
Join date : 2015-08-09
Age : 55

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Tue Apr 17, 2018 3:02 am

I always found that the high idle could be 'fixed' at the lights by just engaging the clutch in gear with the brake on...
Back to top Go down
kiwi dave
Tiradritto
Tiradritto
kiwi dave

Posts : 337
Join date : 2014-04-23
Age : 71

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Tue Apr 17, 2018 2:29 pm

I fitted a pneumatic valve on my 1200 Sports (2V) x3 to fix high idle. As soon as the engine gets up to temperature, the stepper motor is switched out of circuit. The increase in engine braking is enough reason to do this.

But the idle on my GRiSO 1200SE is fine, so what's not broke I don't fix.
Back to top Go down
http://www.guzzigander.com
GuzziSteve
Fra Cristoforo
Fra Cristoforo
GuzziSteve

Posts : 228
Join date : 2016-04-14

Stepper motor shutoff Empty
PostSubject: Re: Stepper motor shutoff   Stepper motor shutoff Icon_minitime1Wed Apr 18, 2018 5:46 am

I will bet it has a metal stepper, new plastic ones are real pricey.
Back to top Go down
 
Stepper motor shutoff
Back to top 
Page 1 of 1

Permissions in this forum:You cannot reply to topics in this forum
GRiSO ghetto :: The Ghetto :: GRiSOLOGY-
Jump to: