HAWK 250 Warm Engine hard to start "Sometimes" ???
I searched and read a few things looking for some help. I didn't see any "Cured the problem info" but may not have read enough. My issue is that "Sometimes" after I been riding a few minutes and stop, to talk to a neighbor or maybe kill the engine for just a few minutes. When I try to Kick Start it again, it's really hard to start "Sometimes" once in a while it surprizes me and just fires right up, but not every time. Imagine stopping to get gas, and there you are in line at the pump, kicking the crap out of a good warm engine with no results. It's very agrivating to say the least. COLD STARTS are not tooo bad, it and seems to start easier Cold. Might I be a tad rich yet on the new Mikuni? On my Cold starts, choke on first kick, then off and a few kicks later it starts right up. HOWEVER it has a kind of a miss or skip in it until it warms up. Also it won't idle at all until it's warmed up. I have the idle set on a warmed up engine, but not sure why i'm having a re-crank issue once I been riding it. I'm still a newbie to these bikes, so any input would really help, thanks...
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Have you check and adjusted the valve yet. If not, they are probably set too tight and when it warms up the valve stop sealing off causing compression lost.
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I haven't even looked at the Valves yet. It has 150 miles on it. I have never adjusted valves on a bike before, is there a good step by step thread here? i mean one that you would recomend? Also before I take something apart, do I need anything, like gaskets or special tools? I have a good feeler guage, but don't know yet if it has the correct size(s) to use on a bike, may have to take a look at it. If a gasket is needed, is it something I can trace out on a cork sheet and cut out myself or do I need some weird looking super thing paper thing?
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The gasket is an O-ring type gasket that is reusable. No special tools needed. Motocheese will step you right through it.
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Thanks, the video is awesome, looks like an easy task to check and or adjust them.
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Just be aware that the guy in the video made two mistakes.
1)The valve lash should be set in 0.05mm to 0.08mm, not 0.05" or 0.04" I guess it's common mistake if you live in the US and you use " all day long. 2)The Valve adjustment must be done with a cold engine. |
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I do believe in a video not long after this one he had re adjusted his valves to .003" intake and .004" exhaust, which is what many here run. I set mine to .0025" and .003" and am quite happy with it. |
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But for my taste .08 mm is too noisy. |
Get hold of NZbrakelathes...he will sell you a valve tool set direct from China.
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I finally got around to Adjusting my Valves. I had to wait on my nieghbor to barrow a good set of feeler gauges, my set didn't go down far enough, it stopped at .008, so bummer, I waited a few days till he was around and got a good set from him.
It was a very simple proceedure after watching Motocheeze videos and drinking a few beers. My bike cranks right up every time now and I can let it actually warm up just sitting there by itself and walk away from it. Pefect on the first try, they were too tight, and I went with the .004 and .005 adjustments. It made a huge difference not only in cold starts, but in how smooth the bike seems to run. THANKS to everyone that helped, and if that Motocheeze guy is on here, Great videos dude... Thanks for everything. |
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