# Injectors and Injector seals

**URL:** https://forum.motoguzziclub.co.uk/t/injectors-and-injector-seals/2245
**Category:** Miscellaneous and universal issues
**Created:** [22 May 2016 09:24 UTC](https://forum.motoguzziclub.co.uk/t/injectors-and-injector-seals/2245 "2016-05-22T09:24:50Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![guzzibrat](https://forum.motoguzziclub.co.uk/user_avatar/forum.motoguzziclub.co.uk/guzzibrat/32/601_2.png) [@guzzibrat](https://forum.motoguzziclub.co.uk/u/guzzibrat)
#### Post date: [22 May 2016 09:24 UTC](https://forum.motoguzziclub.co.uk/t/injectors-and-injector-seals/2245/1 "2016-05-22T09:24:50Z")

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Looking for the source of a kangaroo bike inducing misfire and discovered that the seals/O rings on the injectors were jiggered.  
Despite best efforts of Mike Bailey and myself couldn’t say for sure if the were 14.5 or 15mm.  
Advice from Mr Injector [http://mrinjectoruk.co.uk/default.aspx](http://mrinjectoruk.co.uk/default.aspx) is that a 15mm will fit where a 14.5 was if you smear it with DoT 4 brake fluid.  
Ended up ordering a set of eight of each for £12 delivered.  
With a bike of advancing years it’s worth a check.  
The whole injector costs £300 from Guzzi. The Weber IW031 is also used on Lacia and Lamboughini cars and can be picked up for about £120. Servicing is about £40 per unit but doesn’t address potential problems with the AMP connector.  
Have fun  
Steve