# cracked head -yamaha

**URL:** https://forums.speedlife.net/t/cracked-head-yamaha/194052
**Category:** PittSpeed Automotive
**Created:** [December 6, 2007, 4:13am UTC](https://forums.speedlife.net/t/cracked-head-yamaha/194052 "2007-12-06T04:13:48Z")
**Posts on this page:** 1
**Showing post:** 20

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### Author: ![eurodad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/eurodad/32/5988_2.png) [@eurodad](https://forums.speedlife.net/u/eurodad)
#### Post date: [December 16, 2007, 12:57pm UTC](https://forums.speedlife.net/t/cracked-head-yamaha/194052/20 "2007-12-16T12:57:29Z")

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> [@FS: 1995 Talon Tsi](https://forums.speedlife.net/t/fs-1995-talon-tsi/25055/48):
>
> COMPRESSION SHOws 40 with the throttle open
> 
> what is the normal cause of that?
> 
> what do look for and do next?
> 
> i have verified spark and a new plug but no start condition anyway.  
> although i cant tell you if the spark im seeing is enough. ALSO there is minimal gas on the plug so thats inconclusive.
> 
> ps  
> anybody that wants to see/lend a hand and is around irwin- let me know-
> 
> i don’t have a trailer or tow vehicle.

if the compression is 40 no need in looking at anything else or worrying about the spark or amount of fuel. time to tear into it.

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