TRX300 No Spark, New CDI Help - Honda TRX Forum
 
LinkBack Thread Tools Display Modes
post #1 of 2 Old 05-20-2019, 05:16 PM Thread Starter
Junior Member
Feedback Score: 0 reviews
 
Join Date: May 2019
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
TRX300 No Spark, New CDI Help

Hello all, I have a 1992 TRX300 that's been hit or miss with starting for a while. It has a new battery and a good plug, but it's not getting spark, so I ordered a new CDI. Just installed it and when trying to start up, it fires and almost starts, but then the reverse light immediately comes on and it stops trying to fire. I have to shift into and out of reverse for it to go off, and it comes back on once I try to start it again. I plugged the old cdi back in and there isnt any reverse light issue. And still no spark.
Is it the new cdi? It's slightly thicker and the plugs on it are in the center instead of off to the left side.
Or could it be a diode in line with the reverse switch, or the switch itself?

Any advice is greatly appreciated, as my patience with this thing is wearing thin.
Vault is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 05-20-2019, 11:32 PM
Super Moderator
Feedback Score: 0 reviews
 
Join Date: Jan 2011
Location: Smack in the middle of Illinois
Posts: 2,898
Thanks: 5
Thanked 287 Times in 282 Posts
The diode is in the LH lever circuit so you can start it in gear. It allows the starter motor to spin in gear - when in neutral the starter spins without the lever being pulled in.

The position of the plug on the CDI is not important, but the reverse light coming is a concern. Unplug the grey wire on the reverse switch - if the reverse light still comes on, it's a bad or incorrect CDI unit.

Did you get an OEM CDI unit? Part number 30410-HC4-770 @ $151.25 or some Chinese 'fits' unit?

You would be better off with a used OEM instead of a Chinese 'looks like' unit. It has to be a DC unit - works off battery voltage.

Keep me posted
Here 2 help is offline  
Reply

  Lower Navigation
Go Back   Honda TRX Forum > Honda TRX Discussions > TRX General Discussions

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Honda TRX Forum 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 a valid email address for yourself.

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 On
Pingbacks are On
Refbacks are On

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