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Montesa 315r keeps wetting spark plug???


renegade master
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Hi Guys,

My 315r keeps wetting the spark plug when i go to start it,  I pulled out the carb and checked to see if the floats where stuck but they seemed free and everything looked fine!

the bike had been layed up for a while and was running crap, like reving to the moon on start up and not idling right, to not starting at all!,  so last night i changed the carb for another carb i had around the place and the bike started and ran sweet as could be, the best iv ever seen it, then this morning i started it up frist kick without choke and away it went lovely, so i switched it off and got all my gear on and pushed it outside and it wouldnt start? and now thats where im at!

do any you guys think it might be the reeds? something letting fuel in the head and fouling up the plug?

Thanks guys

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 You have filled up the lower end. Did you leave the petcock on? You can pull the plug out and kick it out, but hold the kill switch as it cojld start on fire. Once you think its clear hold ghe throttle wide open while starting. Make sure the exhaust is pointing away from anything you value.

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Ok thanks guys! I will check tomorrow and see if theres any petrol down below, i did get kinda hard to kick at one stage so that could have been a sign she was hydro locked, when i hydro lock my gas gas it used to drip black fuel from the exhaust manfold, but on the monty its hard to see, and yeah i know what you mean about the fuel tap in a not so eazy location to reach! might by some of them little in-line fuel shut of taps and fit it near to the carb!

Ok Lineaway i will try that too, just to be clear, you mean kick it over with throttle wide open and have the cap off the spark plug incase she starts?

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If you left the petcock open for any period of time (especially if you transported it), I'll 3rd Line's diagnosis.  It is a pain, but the petcock gets turned off on my 315 anytime it's transported or stored between events.  For that matter, the petcock gets turned off on all of my carburated motorcycles for transport and storage.  I really don't enjoy fuel-filled engines.

Remove the fuel tank, remove the spark plug, kill switch activated to prevent current getting to the coil, kick until premix stops blowing out of the spark plug hole (may want to lay a towel over the hole to prevent premix from covering you and the bike).  When little to no more premix comes out during kicking, wipe off all the premix you can find ,replace plug and tank, point the exhaust towards and open area (or something you don't like such as the neighbor's cat), and start it up.  Run it until she's nice, hot, and clear.  Shut off the petcock during storage and transport, cuss at it when turning it back on, ride and have fun!  :thumbup:

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Cheers Guys! 

so today I went out and took off carb and took down all the numbers of the jets and took a look at the float switch too, put everything back on again and gave it a few kicks without plug and it was clear, probably as it was sitting overnight with plug out, the petrol must have evapratied maybe, anyway i put it all back and done what you guys told me to do (couldnt find nebours cat tho!) it started up rough but ran clear after that! I took it out for a spin and all is ok now, well apart from the back exhaust blocked up and the black petrol soaked packing shooting out the back! sounds like a 4rt now! ha! hope its as eazy to re-pack as a gas gas?

also something else i done when putting back the carb, i got two pices of fuel pipe and an inline fuel filter (just because i had no longer pipe) but by making the fuel line longer, i looped it down around the bottom of the carb and back up the tank, im thinking this might help stop the flooding incase the tap is left open when bike is layed up, I am thinking by doing this it will make it harder for syphon action to happen? not sure tho, it would be intresting to her what you guys think? (the professionals) 

I have ordered a load of them cheap inline fuel turn of taps form china for all the bikes!

 

 

Happy Monty again, happer rider!

20180204_194649.jpg

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