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gharmon
8/30/2016 1:34pm
8/30/2016 1:34pm
Okay, we seem to have gotten the clutch problem fixed (thanks for the help guys). We got a couple other issues. First off, the bike runs all stock components and we bought it new. I rebuilt the engine, top and bottom ends, about 25 hours ago. The bike seems to be running hot for some reason. We don't see any water leaking but it boils over after riding. The engine even while warming up seems to be way hotter TO THE TOUCH than normal. I mean you can just feel the heat between your legs just sitting on it while running.
I haven't fooled with many computer issue but I know from my drag racing cars days that if one was mistimed (high I think) it would get hot as shit and the headers would glow. The bike isn't a tooth off per cams/engine. Does the ECU or whatever you call them on bikes ever go bad gradually and possible cause some of this. While the radiators are bent there doesn't seem to be any leaks. How are the water pumps on these bikes? Are head gaskets known to blow on this thing? It also started getting harder to start than normal while cold. Now it's hard to start at anytime. He states he hasn't heard any detonating by he probably doesn't know what it is anyway. We always run 93 octane pump gas. Oh yeah the valves are within normal specs on the cam..
I haven't fooled with many computer issue but I know from my drag racing cars days that if one was mistimed (high I think) it would get hot as shit and the headers would glow. The bike isn't a tooth off per cams/engine. Does the ECU or whatever you call them on bikes ever go bad gradually and possible cause some of this. While the radiators are bent there doesn't seem to be any leaks. How are the water pumps on these bikes? Are head gaskets known to blow on this thing? It also started getting harder to start than normal while cold. Now it's hard to start at anytime. He states he hasn't heard any detonating by he probably doesn't know what it is anyway. We always run 93 octane pump gas. Oh yeah the valves are within normal specs on the cam..
Bent up radiators can also reduce coolant flow and thus create additional heat build up.
Of course the use of some aftermarket parts in your rebuilds can also create extra friction and thus more heat.
Of course there are many other things in a rebuild that can cause the excess heat as well as worn parts that were not replaced.
Were your replacement parts OEM or aftermarket?
Paw Paw
I have ordered a new fuel filter and it will be here tomorrow. We will see how that plays out tomorrow. Yesterday at the track he cranked it and rod two laps. Then it died and he was unable to get it to fire back up, even pulling it off with golf cart. I'm going to check the valve clearance hear after while and see what we got. I checked them a month ago and they were still fine. If they hadn't changed in 2 years prior I find it hard to believe they went to zero clearance in a month but I'm going to start there.
Thanks for the assistance guys.
filter
or you'll be replacing that fuel filter way too often. You also don't want it to bog from a dirty filter while riding.
The Shop
After getting everything all buttoned back up and kicked and kicked and kicked to no avail. It never even tried to hit.. Any ideas guys?
Oh yeah just to eliminate the possibility of timing issue I checked them and the timing has not jumped. It as dead on as were the valves
Is there a certain number it needs to reach via kicking it over? It also did fire over by putting ether into the throttle body.
Any advice. The race weekend and today is the last day to "next day" in a part if I need it.. Just to throw it out there the bike never thru a code of any sort.
But here is what confuses me. If I spray ether in there it still doesn't fire or hit. Now you can see the back of the valves so I know fuel is getting to where it needs to be to fire the bike. WTF. It's in time, the bike has fuel, spark, and compression. I been eff'ing with internal combustion engines for most of my life and I thought that's all you needed to make one run.
Apparrently NOT!!
Pit Row
"Update, the bike still will not crank (at least not without spraying ether in the TB. Just to rehash the issue I'll put the initial complaint here:Okay, we seem to have gotten the clutch problem fixed (thanks for the help guys). We got a couple other issues. First off, the bike runs all stock components and we bought it new. I rebuilt the engine, top and bottom ends, about 25 hours ago. The bike seems to be running hot for some reason. We don't see any water leaking but it boils over after riding. The engine even while warming up seems to be way hotter TO THE TOUCH than normal. I mean you can just feel the heat between your legs just sitting on it while running.
I haven't fooled with many computer issue but I know from my drag racing cars days that if one was mistimed (high I think) it would get hot as shit and the headers would glow. The bike isn't a tooth off per cams/engine. Does the ECU or whatever you call them on bikes ever go bad gradually and possible cause some of this. While the radiators are bent there doesn't seem to be any leaks. How are the water pumps on these bikes? Are head gaskets known to blow on this thing? It also started getting harder to start than normal while cold. Now it's hard to start at anytime. He states he hasn't heard any detonating by he probably doesn't know what it is anyway. We always run 93 octane pump gas. Oh yeah the valves are within normal specs on the cam.."
Ok, so I did replace the fuel filter, the head gasket (it was blown) and the top end.
Okay, so now I'm back to get this thing up and running. I'm not the best at electrical shit and testing components so I need some help guys.
Other things I've done and eliminated. I have tried a stator form a good bike and its still a no go.
I know you aren't supposed to hook it up to a 12 volt set up but I did rig up a setup and the fuel pump and injector both still work and work well.
If I spray ether into the throttle body it will fire and run, pretty easily. So I assume something isn't tell the computer/ECU to fire the injector? Could all the excessive heat that had been coming from the hotter running engine cause a failure somewhere to a component getting to hot?
And ideas where to start?
Thanks Guys,
Gerald
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