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Post Info TOPIC: Power valve cap


DTR Senior Member

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Power valve cap
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My power valve cap on my dt 125r , the bit where you bolt the screw thru the power valve cap has snapped off on the right hand side of cyclinder when i was trying to get it off , (typical) does that play in a big part to help it the bike start up? it's having problems starting and running right at moment, would this be the reason why? cos all the airs leaking out of it, because it's not screwed down , i kicked it over the other day, and the cap popped out! so im guessing it plays a big part in the starting up process? any help will be massively appreciated. I want to ride it ! lol



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''Regular maintenance is the key to reliability; irregular maintenance is the key to great exercise''

MDK


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yeah it has to be sealed air tight .

did the bolt snap of flush or is there still some sticking out to maybe grasp with vise grips and try to turn it out ?
if it snapped inside or flush you may need to drill it out and rethread the hole for a new bolt if drilling takecare not to go to deep .



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good clean up of a old batterd  dtr  95

 



DTR Senior Member

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Ahh I see. sorry i meant, it snapped while i was getting it out, you know the groove bit where you put the screw thru it. the screws alrite, so that would explain why theres also a screw to put it on, the screw makes it air tight i guess. so explains why it's not starting properly. haha :D cheers m8



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''Regular maintenance is the key to reliability; irregular maintenance is the key to great exercise''

MDK


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so the screw and thread/hole are ok but the cap is damaged ? easy temp fix would be put a larger washer on the bolt/screw that should hold the cap in place maybe ?

got your message ...

this is kinda what I meant some washers on the bolt will overlap the cap holding it in place .. as a temp fix  sorry my paint skillz sux lol .

another option is to cut a peice of alloy sheet or metal the same shape as the top of the cap and hole 

 

1000x1000.jpg

 



-- Edited by MDK on Tuesday 28th of January 2014 03:23:46 PM



-- Edited by MDK on Tuesday 28th of January 2014 03:25:20 PM

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good clean up of a old batterd  dtr  95

 



DTR Senior Member

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When I first got mine the cap was missing it started fine and ran ok was just a bit noisy.used a core plug in the end for a temporary fix which worked a treat.

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MDK


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madrevs wrote:

When I first got mine the cap was missing it started fine and ran ok was just a bit noisy.used a core plug in the end for a temporary fix which worked a treat.


 done the same myself  just cut a bit of alloy plate to shape some gasket paste or chem metal and bolt in place lol ... used to be a big fan of boddging it  when money was tight ..



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DTR125CO-1.jpg


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good clean up of a old batterd  dtr  95

 



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Ahh I see. well I think it's fuel related now, plug stinks of it lol. at least the cap is ruled out. just weird it was fine last week. and i go to use it next day and it doesnt start. lol... can i put redex in tank just a little? could be dirty fuel and carb is all blocked up?



-- Edited by The_DtR_Maniac1991 on Thursday 30th of January 2014 05:03:06 PM

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''Regular maintenance is the key to reliability; irregular maintenance is the key to great exercise''

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