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range between 1.45mm and 1.55mm so they are getting close to the min spec of 1.20mm , so if i have to re-shim again to often if won't be long until i run out of options and have to look at getting the valves out. You don't get much life out of these intake valves that's for sure, i'll run the bike f...

Thanks for the reply, good news i got the new shims in today and the bike fired first time <!--EZCODE EMOTICON START :banana --><img src=http://img.photobucket.com/albums/v209/FZRDude/Smilies/Dancing_Bananna.gif ALT=":banana"><!--EZCODE EMOTICON END--> <!--EZCODE EMOTICON START :banana --><img src=h...

I have a question for all you EXUP brotherhood folk, does the YZF 750 have an underlying problem with soft intake valves ?<br><br>Regarding my previous post (YZF won't start) which was found to be the intake valves closed off i had a look about the internet for information regarding this issue and f...

Ok progress, checked valve clearance today, happy to say exhaust clearances are ok apart from one.<br><br>As for inlet clearances all are closed, i think i found my fault, now how i shim up for inlets i'm not sure seeing as they are closed right up, unless i take away 0.20mm which is the way i may g...

No i aint done a compression test, i aint got a compression tester at hand though sure i could get one, one of my friends should have one. <p></p><i></i>

i have found the following for clearance specs:<br><br> inlet valve exhaust valve <br><br> 0.11-0.20mm 0.21-0.30mm <br><br>does anyone know if that is correct <p></p><i></i>

my bike when it used to work <!--EZCODE EMOTICON START :soap --><img src=http://img.photobucket.com/albums/v209/FZRDude/Smilies/soapbox.gif ALT=":soap"><!--EZCODE EMOTICON END--> <br><br><!--EZCODE AUTOLINK START--><a href="http://homepage.ntlworld.com/craig-shaw/BIKE21.JPG">homepage.ntlworld.com/cr...

No i havent, to be honest iv'e never done a re-shim / valve adjustment on a 4 stroke before the bike has done 31.000 Km do you think it sounds about due ?, Surely it can't need a rebore yet.<br><br><br>Could it be true, could it be the very reason my YZF has been off the road for 2 years now! I'm ge...

Damn it cleaned carbs twice , and thoroughly still no joy, what next ? compression test <p></p><i></i>

Thanks for all the help guys <p></p><i></i>

Thanks for the help Jim i'm just gonna have to get brutal with them and get the things off one way or another i have no choice, if a remember they had 2 clamps a piece with an allen screw head. looks like a job for the weekend all being well. <p></p><i></i>

Thanks for the quick reply, i used some carb cleaner to do the best i could and sprayed it down all the jets i could see or get to from looking at the carb set in situ.<br><br>But yes your quite right i really do need to get them out and on the bench for a clean, now comes the next question, how on ...

<!--EZCODE EMOTICON START :sad --><img src=http://img.photobucket.com/albums/v209/FZRDude/Smilies/jumping_sad.gif ALT=":sad"><!--EZCODE EMOTICON END--> <br><br>It all started after a winter rest for the bike i went to start ot for the first summer ride and i could not get the bike to start,i always ...