hannu Posted November 29, 2014 Report Share Posted November 29, 2014 HELP, OK so last weekend just after the first section I drowned the bike (2014 4rt), up to my waist in water which is over the air box, Dried it out and after a few kicks it started again and I finished the trial albeit with a few pops and bangs and difficult restarts. So get it home and this week I have stripped down cleaned and thoroughly dried air filter, air box, all the wiring and wiring connectors etc etc. Plus wet so assume its getting fuel and a spark at the plug but it just wont run, not even a flicker ??? Anyone any ideas ? Quote Link to comment Share on other sites More sharing options...
zerorev3rev4 Posted November 29, 2014 Report Share Posted November 29, 2014 TRY A STROBE LIGHT ON HT LEAD WITH PLUG IN IF OK TRY A COMPRESSION TEST Quote Link to comment Share on other sites More sharing options...
johnnyboxer Posted November 29, 2014 Report Share Posted November 29, 2014 Did the engine take in any water? Have you checked the colour of the oil? Try a new plug Quote Link to comment Share on other sites More sharing options...
the addict Posted November 29, 2014 Report Share Posted November 29, 2014 (edited) Water like most liquids does not like being compressed, I hope the motor didn't swallow any water? and as mentioned above have you checked the oil as an indicator of water entering the engine? I've never drowned a bike that bad but if I did the plug would have been taken out before any kicking over of the engine happened. Edited November 30, 2014 by the addict Quote Link to comment Share on other sites More sharing options...
hannu Posted November 30, 2014 Author Report Share Posted November 30, 2014 Did the engine take in any water? Have you checked the colour of the oil? Try a new plug Not sure if it took in water or not, The bike ran for a good 2hr after in incident albeit with a few coughs which I assumed was damp being taken in due to the wet air filter, No not checked the oil yet Yes new plug tried Quote Link to comment Share on other sites More sharing options...
hannu Posted November 30, 2014 Author Report Share Posted November 30, 2014 Not sure if it took in water or not, The bike ran for a good 2hr after in incident albeit with a few coughs which I assumed was damp being taken in due to the wet air filter, No not checked the oil yet Yes new plug tried Oh dear, just checked, oil white, sugar butties Quote Link to comment Share on other sites More sharing options...
hannu Posted November 30, 2014 Author Report Share Posted November 30, 2014 Oh dear, just checked, oil white, sugar butties So will I get away with flushing the engine out or is a full strip down recommended ? Quote Link to comment Share on other sites More sharing options...
johnnyboxer Posted November 30, 2014 Report Share Posted November 30, 2014 (edited) Doesn't sound good, get it out quick before the water allows anything to rust internally Flush through at least twice with cheap oil Have you got a spark? If you have got a spark.......... check the fuel system, has the fuel tank also got water in it? If so, the water will sit at the bottom of the tank and the fuel on top, thus preventing fuel getting out as pure fuel You should have checked it last weekend, water sat in engine for a week.............. isn't good Edited November 30, 2014 by johnnyboxer 1 Quote Link to comment Share on other sites More sharing options...
hannu Posted November 30, 2014 Author Report Share Posted November 30, 2014 Doesn't sound good, get it out quick before the water allows anything to rust internally Flush through at least twice with cheap oil Have you got a spark? If you have got a spark.......... check the fuel system, has the fuel tank also got water in it? If so, the water will sit at the bottom of the tank and the fuel on top, thus preventing fuel getting out as pure fuel You should have checked it last weekend, water sat in engine for a week.............. isn't good Thanks Johnny, Yes oil now out and it was my intention to flush through three times getting engine up to temp and replace oil and filter each time, Yes I have a spark but the bike didn't go that deep as to get to the tank, However will drain to make sure. Thanks for the info 1 Quote Link to comment Share on other sites More sharing options...
barfy Posted December 7, 2014 Report Share Posted December 7, 2014 Hannu, Change the oil!! From experience doing similar once, a bit of water in the engine oil stop my Montesa starting. I tried drying everything and had a spark, but it wouldn't start. When I changed the oil it started within a couple of kicks. 2 Quote Link to comment Share on other sites More sharing options...
hannu Posted December 8, 2014 Author Report Share Posted December 8, 2014 Hannu, Change the oil!! From experience doing similar once, a bit of water in the engine oil stop my Montesa starting. I tried drying everything and had a spark, but it wouldn't start. When I changed the oil it started within a couple of kicks. Yep changed the oil and filter three times and it starts like a gud en again now just need to get shut of the side stand and Dunlop tyres now ha ha Quote Link to comment Share on other sites More sharing options...
Rollox Posted December 9, 2014 Report Share Posted December 9, 2014 hannu, I hope you checked gearbox oil too. After a deep dip in a creek my 4RT showed Pina Colada in engine and gearbox. Maybe water came in via ventilation tube. Quote Link to comment Share on other sites More sharing options...
hannu Posted December 12, 2014 Author Report Share Posted December 12, 2014 hannu, I hope you checked gearbox oil too. After a deep dip in a creek my 4RT showed Pina Colada in engine and gearbox. Maybe water came in via ventilation tube. Yep did that too ? Quote Link to comment Share on other sites More sharing options...
bradfordjonq Posted March 10, 2019 Report Share Posted March 10, 2019 Hi All, I realise this is an old thread but I’ve had 4rt starting problems recently and wanted to share the little trick I’d been given by the mechanic at Sandifords, Burnley. In short, I brought my 2015 4rt home on my trailer through some miserable wet and cold conditions, I spent a week pulling my hair out trying to get it started, checking electrical connections etc without any luck, in the end I phoned Sandifords and they told me to do the following - Open the Idle screw under the seat by another 2 full turns (factory setting for the tickover is around 3 full turns out). Fully open the throttle and slowly kick the starter to reset the ECU (the bike won’t start at this stage). Return the throttle to closed and kick start the bike as normal (no throttle). The bike should start with a high tickover. Turn the tickover screw back in until the tickover is ‘normal’. Hopefully that will save someone the hassle I had.. Quote Link to comment Share on other sites More sharing options...
lineaway Posted March 11, 2019 Report Share Posted March 11, 2019 We all know normal is not normal 1800 rpm tick over on the 4RT. Quote Link to comment Share on other sites More sharing options...
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