What is the easy way of knowing the exup valve is working properly? I totaly understand the mechanical side of things. Im just asking if the valve does a cycle when the ignition is turned on/off? Or something like that? Or what RPM should the valve start too move?
Im about too take delivery of my first EXUP. Aparrently its bogging at low RPMS. The valve is my first port of call!!
Newbie Exup question.
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Re: Newbie Exup question.
If you lift the tank (RU) the motor is underneath. When you rev the engine the motor should start to move straight away. If the motor turns correctly check the exhaust side is moving the same.
The motor does not cycle on the RU but if it is moved out of position by hand with the ignition off it will turn to its correct position when the ignition is switched on.
Bogging down, if EXUP related is valve stuck open or missing altogether.
If the valve checks out post back, the next port of call is carbs.
The motor does not cycle on the RU but if it is moved out of position by hand with the ignition off it will turn to its correct position when the ignition is switched on.
Bogging down, if EXUP related is valve stuck open or missing altogether.
If the valve checks out post back, the next port of call is carbs.
- GreyImport
- Level 2.0
- Posts: 233
- Joined: Fri Jun 22, 2012 3:07 am
- Location: Sunny Australia
Re: Newbie Exup question.
1990 FZR250R 3LN1
1977 Triumph Bonneville 750 T140V
http://2fiftycc.com/index.php
EMAIL: greyimport@2fiftycc.com
LiteTek Carburettor Seal Kits
http://www.litetek.co/index.html
1977 Triumph Bonneville 750 T140V
http://2fiftycc.com/index.php
EMAIL: greyimport@2fiftycc.com
LiteTek Carburettor Seal Kits
http://www.litetek.co/index.html
Re: Newbie Exup question.
Thanks for the repyls. Good link.
Could a flat battery cause exup not too work?
Could a flat battery cause exup not too work?
Re: Newbie Exup question.
I doubt it.
Is the motor not turning?
Is the motor not turning?
- HybridSport600
- 50+ Posts
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- Joined: Mon Oct 29, 2012 4:38 am
- Location: US
Re: Newbie Exup question.
89 FZR 600 US- In process of Full frame up resto/Modding
94 FZR 600 US- all OEM
05 600 f4i US- Full Cylinder machining/w full Port/polished head /w stainless valves,Custom H-beam connecting rods,
low compression Weisco Forged pistons,and alcohol mix intercooled. -Sold in 09
79 XS650 US- Boyer electronic ignition, accell coil, ricks stator upgrade, Custom Flamed Ghost pearl 2 tone blue
83 Xj550 US- Full restoration- w/minor mods, Custom Candy Tangerine pearl paint, in process of Fiberglassing a solo seat
69 Vw Trike 2180cc h4 -w/ 15lbs boost paxton supercharger in progress.
79 HD Shovelhead Custom- 1340cc- Just purchased 11-3-12
94 FZR 600 US- all OEM
05 600 f4i US- Full Cylinder machining/w full Port/polished head /w stainless valves,Custom H-beam connecting rods,
low compression Weisco Forged pistons,and alcohol mix intercooled. -Sold in 09
79 XS650 US- Boyer electronic ignition, accell coil, ricks stator upgrade, Custom Flamed Ghost pearl 2 tone blue
83 Xj550 US- Full restoration- w/minor mods, Custom Candy Tangerine pearl paint, in process of Fiberglassing a solo seat
69 Vw Trike 2180cc h4 -w/ 15lbs boost paxton supercharger in progress.
79 HD Shovelhead Custom- 1340cc- Just purchased 11-3-12
Re: Newbie Exup question.
the exup servo doesnt run on battery power...it run on love.coops wrote:Could a flat battery cause exup not too work?
flat battery, it should still work.
Re: Newbie Exup question.
the servo is electric operated so wont work if battery is flat.
With a charged battery and ignition OFF, rotate the pulley wheel fully in either direction. Then turn on the ignition and the pulley on the servo motor sould self centre if its working.......... If you hear noises but theres no movement, theres a good chance the plastic gears have shredded teeth inside the servo
With a charged battery and ignition OFF, rotate the pulley wheel fully in either direction. Then turn on the ignition and the pulley on the servo motor sould self centre if its working.......... If you hear noises but theres no movement, theres a good chance the plastic gears have shredded teeth inside the servo