Extremely Hot

Sven

Well-Known Member
="Mastiff... he thinks that my Self learning VFI is not in learn all the time, so as I went up the mountain my fuel got lean like really lean.
Had a pre-02 emissions truck I would drive up to a mountain resort say. It was so sluggish, and the potato chip bag would expand like a balloon. So, less air, more fuel is the sluggish power = Over rich.

If the bike has an 02, senses less air, goes rich, the learn is setting the lean via 02. You want learn because it's more or less seconds to calc the change. Think about it. If you turned it off, or an early black box that was preset and could not learn, it would more or less be in a preset map, non-moving. So day by day, you do not receive the best mileage, best tune, etc. With learn, it's going to calc the best temp/ambient as the 02 is sending in real time so within so many seconds/minutes, you have today's ambient/altitude/etc. moving along with you no matter the altitude/temp/day of the month's swings/etc.

So the walk away from a perfectly running bike, say yes to each question... close the tool box.
1. Does it start normally?
2. You "do not see a puff of smoke" upon startup, or puffing at each fire off, right?
3. The engine noise sounds normal.
4. Walk away, plus put down the phone.

The beauty of fuel injection. Fiddle fuck, fiddle fuck around with the bike is over with. Finger prints on the keyfob only, not the tools. Liquids yes, but the hardware, prints off or else...

... Hi, new here. My hei I had to fiddle, you know, fuck with it and here I am.
 

Mikeinjersey

Well-Known Member
My electrical covers, paint and fingers would disagee.

But thank you for your translation Lol
It seems that consensus is your engine is OK. The one plug does look a little lean. I agree with looking for intake leaks. That being said, start looking at the temp of your trans the new cooling system may be malfunctioning and contributing to the overall high heat situation. Get a laser temp gun and when it's hot check the engine and the trans so you can get to the bottom of your issue before you fry a more costly part than the covers. In the meantime check your fuel line for any sign of failure. No need to add fuel to the problem. NO PUN INTENDED.
I guess moving north is off the table.
 

Sven

Well-Known Member
="Mikeinjersey: The one plug does look a little lean. I agree with looking for intake leaks. Get a laser temp gun and when it's hot...
Leak is a stall, poor pulse signal [bad idle]? It still would pull from both cylinders is the vac pull at all openings. If it starts right up, I don't know, but say a can of brake clean in one hand, thumb on the start button with a cold engine. As soon as it runs, spray the head's intake Y at each cylinder. No stall, or raise in rpm, then no leak, right?

I'd also hit the tarmac with the temp gun at the same time I temp the bike. That tells me how hot the environment, vs ?? Plus, the temp gun could show who's head is hotter? The one out in the open air, the one behind with limited air to cool goes lean? As if the V-twin engine has a flaw in its cooling process it keeps scoring piston skirts, the piston expands that much it galls the cylinder, etc. And I'm choosing the rear cylinder as the least cooled one.
 

pknowles

RETIRED
Ok guys, I need your advice or help on something. My 2009 Bulldog Bagger seems to be running extremely hot. So hot that after the ride I planned the other weekend I may need someone who can paint the Anniversary paint job on the electrical side covers. During my ride the other weekend the bike ran very well, but it seemed to running extremely hot. When we left out that morning temps were mid 70's, when we got to Barbarosa Saloon in Tenn they were mid 80's, Gatlinburg was about 92 when we got there, and the heat coming off the bike in the stop and go traffic made me decide to park the bike and visit while the bike was cooling off.

The day before leaving I noticed my transmission fluid was low so i added some till the full make with bike standing up right, did an oil change also added the correct amount of oil then ran the bike to let it get thru the system and added some more to the full line after it went thru the new oil coolers I used 20w-50 amsoil synthetic, added my oil pressure gauge, which I'm a little confused, after starting bike I'm running like 30 psi at idle, as the motor warms up it does lower down to about 10 psi. But I have theory on why in Gatlinburg it was at 0 psi at idle and the little bit of moving or throttling up it only moved to like 5 psi.

But after parking the bike, I pulled the key out of ignition and the rubber part of key was so soft and mushy, not only did it burn my thumb and side of index finger from grabbing it to remove it, but I dropped it in my other hand and the metal part of it was so hot that it burnt me also to the point I dropped the key on the ground. After 2.5 hours in Gatlinburg we headed back to the bike and rode from gatlinburg all the way to Spartanburg stopping 1 time for gas and stretch our legs bike ran great, even the temp seemed a little better or maybe the fact I was sunburnt I didn't notice the heat on my legs as much as my arms? But we made it home. The next day I go to clean the bike up and i noticed that my electrical side covers paint was bubbling and the plastic was missed shaped behind the rear cylinder. Now I measured the distance of the pipe to the cover removed the pipes put the factory pipes back on and measured and honestly there is no more than an .25 inch difference in the distance so i dont think its the pipes that done it. I think either the transmission got so hot or the motor got so hot that while the bike was parked the heat off of them did this.

Here is where I need your advice or help, whats causing this bike to run so hot?

now here is what I do know, I have the fiberglass washers between the igintion cover and the heads, so heat shouldn't transfer that bad
New spark plugs, new dual oil coolers, wires, oil change, transmission topped off, oil pressure is good except at high temps
never went over 76 MPH, never under 35 unless at stop light, or stuck in traffic in gatlinburg
exhaust was changed from factory with mean mother slip ons to Paul yaffie Phantom II for baggers baffle is still installed
New fuel pump, injectors, throttle position sensor, MAF sensor, rsd air cleaner, running 93 ethanol free gas
I wrapped my exhaust under the heat shields to stop the heat from damaging my covers on the 07 K9. So far, it seems to be working. It is somewhat of a pain but using the stainless steel bands to secure the wrap helps. Also did my streetglide and it keeps the heat down to a bearable level.
 

Sven

Well-Known Member
Cali. Places like Willow Springs, Fontana. Not to jack the thread, nor mention names, but we were at a trackday at Fontana; pitted next to a money rig. Meanwhile, I prep and pit a few bikes my buddy brings out for he and his son. The rig owner brought out his one-off to shake it down for a race. The session is over, in rolls his rider on the one-off. The owner is not back, nor hit pit guy. I remember being leather'd up in the hot [hard to breath] smog [era] when Ontario was around. Fontana is the bigO's replacement more or less. And I mean fast forward to the glowarm effect, I walk up and hold the bike, tell his rider to get in the shade. He says to me, 'Don't drop that thing, what's his name will be... '. We met again years later. I told him about that day. This time, I wipe the belly pan with a paper towel of the bike he was riding. He says, 'what did you do that for'? I held it up and said, 'clean as a whistle,' and he goes, 'good call'. He's a very nice guy, btw. Looks the gentlemen, is the gentlemen.

Anyway, the day is over, we're packing up, and then that rig starts to backup. Imagine the front wheels turning this semi, and I'm watching the rear trailer tires just churn up that once perfectly smooth asphalt. I almost cried with the tire tracks it laid out. If only I had a keyfob with a rolling pin on the end of the chain.
 
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