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post #1 of 5 (permalink) Old 08-17-2019, 05:41 PM Thread Starter
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Ltr 450 hard to start when hot.

So.. i have brought this ltr in multiple times to numerous shops. The machine runs very nice when i first start her up during the day. But after about 5 mins of it running. Ill shut it off and it wont again.

It will turn over but will not fire. The mechanics have replaced the stator, the starter, threw in a new ecu, replaced the wires, tightend up the starter relay, put new spark plug in, put a new ground wire in, and put a new battery in it.

Have no idea what else it could be. I personally cleaned out the fuel tubes because i thought that could have been the problem and also fixed the idle on it.

Any ideas for the hard to start when hot?
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post #2 of 5 (permalink) Old 08-18-2019, 06:26 PM
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Check valve lash, valves grow under heat and don't seal all the way,, especially the exhaust.

Quote:
Originally Posted by hinkle View Post
We started hitting the teens but no white stuff yet.
2006 LTR 535-R, Go Big or Go Home.


Her name is Bruce

https://www.ltr450hq.com/forums/gener...ce-manual.html
https://onedrive.live.com/?authkey=%...%21147&o=OneUp

LTR450 manual ^ ^ ^ ^ ^ ^
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post #3 of 5 (permalink) Old 08-20-2019, 10:26 AM Thread Starter
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Where would i find that?
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post #4 of 5 (permalink) Old 09-06-2019, 05:42 PM
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in the manual,

Quote:
Originally Posted by hinkle View Post
We started hitting the teens but no white stuff yet.
2006 LTR 535-R, Go Big or Go Home.


Her name is Bruce

https://www.ltr450hq.com/forums/gener...ce-manual.html
https://onedrive.live.com/?authkey=%...%21147&o=OneUp

LTR450 manual ^ ^ ^ ^ ^ ^
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post #5 of 5 (permalink) Old 09-07-2019, 01:06 PM
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I know when I first bought my ltr it would always be hard as hell to start when hot and it turned out the idiot I bought it from out the shims in backwards so technically it was blown.. not sure if this helps
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