Engine Shutting Off Constantly During Cold Start - Triumph Forum: Triumph Rat Motorcycle Forums
T3 Sport / Touring Forum For the discerning Hinckley Sporting Enthusiasts. Open to all lovers of the original T3 Sport Models including the Trident, Sprint, Sprint Exec, Daytona, Trophy, and Speed Triple.

 
LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old 07-31-2019, 05:23 PM Thread Starter
Production 125
New Member
 
Join Date: Jul 2019
Posts: 6
Engine Shutting Off Constantly During Cold Start

I have a 98 Trophy 1200 with a few things it needs attention to. One of the problems that I haven't diagnosed is the engine shutting off repeatedly during a cold start. The low oil light will illuminate when it does this and will do it 10 times during a cold start or 3 times. It varies every single time, but I know damn well its making oil pressure and this problem completely goes away once the motor warms up. I was wondering if anyone had any tips on maybe a common problem with a oil pressure sensor simply being the culprit.
garretts228 is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 07-31-2019, 08:32 PM
Grand Prix 125
Main Motorcycle: 96 !200 Trident
New Member
 
Join Date: Jul 2019
Location: Leaving Apple Valley, CA going to Pinetop, AZ
Posts: 27
Other Motorcycle: 98 Sprint
Hi Garrett, The oil pressure sensor isn't going to turn the engine off. The side stand sensor will turn the engine off. The little plunger gets pushed in when the side stand goes down. Only a spring pushes it back out and sometimes it gets stuck in the in position.
Greg96Trident is offline  
post #3 of 6 (permalink) Old 08-01-2019, 11:58 AM
Grand Prix 250
Member
 
Join Date: Aug 2007
Posts: 57
The oil pressure light always comes on when a motor stalls, or are you saying it comes on while the engine is running, then it stalls?

I assume your 98 is still on carburators, so with choke on you should get a high idle, around 3,000 to 3500 rpm.....do you get this? If not, your choke (which isn't a true choke like in the old days, but that doesn't matter here) isn't working properly. If you are idling low, without choke, at around 1000 rpm at cold start, it is normal that it will stall a few times until the motor warms up.
Droz900 is offline  
 
post #4 of 6 (permalink) Old 08-11-2019, 05:56 PM Thread Starter
Production 125
New Member
 
Join Date: Jul 2019
Posts: 6
Quote:
Originally Posted by Greg96Trident View Post
Hi Garrett, The oil pressure sensor isn't going to turn the engine off. The side stand sensor will turn the engine off. The little plunger gets pushed in when the side stand goes down. Only a spring pushes it back out and sometimes it gets stuck in the in position.
But it happens when the bike is in neutral on the side stand. It happens while it just sits warming up.
garretts228 is offline  
post #5 of 6 (permalink) Old 08-11-2019, 05:58 PM Thread Starter
Production 125
New Member
 
Join Date: Jul 2019
Posts: 6
Quote:
Originally Posted by Droz900 View Post
The oil pressure light always comes on when a motor stalls, or are you saying it comes on while the engine is running, then it stalls?

I assume your 98 is still on carburators, so with choke on you should get a high idle, around 3,000 to 3500 rpm.....do you get this? If not, your choke (which isn't a true choke like in the old days, but that doesn't matter here) isn't working properly. If you are idling low, without choke, at around 1000 rpm at cold start, it is normal that it will stall a few times until the motor warms up.
The oil pressure light only comes on after the engine cuts off. Its like spark is instantly cut while the bike is just hanging out on the side stand warming up. It happens again and again until the bike has warmed up. It will happen while the bike is in motion too at lower speeds which is terrifying because of how hard the bike lurches forward.
garretts228 is offline  
post #6 of 6 (permalink) Old 08-12-2019, 12:23 PM
SuperBike
Main Motorcycle: '98 Sprint Executive
Senior Member
 
sailfish's Avatar
 
Join Date: Dec 2003
Location: Lincoln, NE
Posts: 1,441
Other Motorcycle: KTM 640 LC4
Extra Motorcycle: '01 Suzuki DRZ400
It stays running reliably when it's warm?
Does it restart immediately when you hit the starter button?
sailfish is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options
All posts must adhere to Forum Rules

Register Now



In order to be able to post messages on the Triumph Forum: Triumph Rat Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter your valid email address, that can receive an automated confirmation message. Otherwise, you won't be able to gain full access.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome