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Post by rcq92130 on Oct 29, 2015 19:14:56 GMT -5
How good is the gas filter? With EFI yuo need to have a great filter, since the orifice in the injector is very small and is easily clogged.
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Post by rcq92130 on Oct 29, 2015 18:53:53 GMT -5
OT I realize, but does one of those torque monsters beat a Tesla off the line? I've seen YouTube vids against high end sports cars, but not an alter to the gods of torque, curious if the Tesla can match? There are several supercar manufacturers who have no copied the thing, but the first performance hybrid was "Le ferrari" (that's it's name) by Ferrari. auto.ferrari.com/en_EN/sports-cars-models/car-range/laferrari/I've forgotten the specs a bit, but the car has the standard 12 cylinder engine (something like 750 or 800 BHP at the wheel) PLUS an electric motor. BUT - they didn't design it for gas consumption, but used the electric motor to fill in the torque curve of the gas engine. Total equiv HP is over 1,000 if i recall, and the flatness of the torque curve is bizarre. Unfortunately, it costs even more than one of P-Guy's freakish builds ..... !!!!!!
NOTE: click on "specifications", then click on "Start Engine". Have your speakers "ON".
Fun! |
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Post by rcq92130 on Oct 28, 2015 18:45:11 GMT -5
I am still WAAYYY confused.
You say your mechanic is great.
OK - so at the first hint of ANY possible engine problem the first thing he would have done is pull the plug, screw in the compression tester, and see what the compression was. Ten minutes. He didn't, which is IMPOSSIBLE for an actual mechanic.
Next - without even checking he came to the conclusion the compression was too high. First thing any mechanic would have done is pull the plug, screw in the compression tester, and see what the compression was. Ten minutes. He didn't, which is IMPOSSIBLE for an actual mechanic.
Then he theorized the combustion chamber was filled with oil (or gas, or zebras ... whatever). First thing ANY mechanic would have done is remove the plug and turn the engine over, which would have spit any zebras or walruses or oil out the plug opening and cured the problem. FIVE minutes. He didn't.
I'm kind of doubting the "great mechanic" thing .....
So now the scooter is magically running (all those pesky T-Rexes must have departed the combustion chamber) but it's showing some symptoms of incorrect tuning. First thing ANY mechanic would have down is tune the damned thing, including any different jets (if needed). He didn't ....
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Post by rcq92130 on Oct 27, 2015 12:23:54 GMT -5
Yep New part mailed yesterday, will arrive Friday. What caused it to break? Bad welding? Excessive vibrations? My theory: Was going 60 or 65 when i hit a bump & went airborne. No big deal - normally just hit the road, shock absorber takes the jolt, on you go. But i think that's when the weld broke. So why? I think because of the single, offset rear shock absorber - causing an offset force that torqued the engine, putting too much force on the swing arm (hanger). The reason i think this is because the engine is offset and tilted just as you would expect from a force on the left side, where the single shock is. Thinking it's a good idea to add a right-side swing arm and a second shock absorber so everything is balanced. |
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Post by rcq92130 on Oct 27, 2015 11:22:59 GMT -5
I'm having a hard time following this thread, is the title still true? Broken engine hangar???  Yep New part mailed yesterday, will arrive Friday. |
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Post by rcq92130 on Oct 26, 2015 14:57:20 GMT -5
First clue was when a friend told me, "HEY! The back of your scooter looks like it was in an accident! Wheel is tilted and pushed to the side!":  Removed the seat and looked into the engine compartment. Engine was sitting there all slanted, with the head 'pushed" to the left several inches!  Turns out the engine hanger is broken. The hanger is the single engine mount (also called the swing arm). It goes from right frame to left ---- with a part that then dips down under the carb, forming a tube from the left side of the crankcase where a cast "ear" is, to the right side where another "ear" is. The engine mounting bolt goes thru the hole in the left ear, then thru the tube part of the engine hanger, then thru the hole in the right ear. The "tube" part of the hanger is welded to the upper part. When i flew over a bump in the road (going airborne) I apparently broke the weld along about 1/3 of the tube. This allowed the hanger tube to tilt, making the engine sit off to the side and on a slant!  New hanger on order. |
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Post by rcq92130 on Oct 26, 2015 12:05:49 GMT -5
Few days delay to replace a broken engine hanger (swing arm), damaged going over a bump (airborne!) a few days ago. Thinking it may be smart to address the problem of a single, offset rear shock absorber by adding a right side swing arm and second shock ...
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Post by rcq92130 on Oct 24, 2015 17:35:02 GMT -5
I had similar problem with mine my compression was around 200psi after a bbk upgrade. The colder temps made it worse too. What weight oil are you using? I switched to a 5w4o synthetic and that seemed to help a bit too. Boom! Data Now were talkin  I thought the EPA just passed a new regulation making it illegal to take a measurement, punishable by a fine of $5,000 and 6 months in jail. |
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Post by rcq92130 on Oct 23, 2015 18:43:41 GMT -5
I am confused as heck. All this based on the belief of "too much compression", but no one has even bothered to screw in a compression gauge and see what the compression is  ?? That's almost the first thing you should do when you have a mystery engine problem. This seems nuts to me. Get a new mechanic. |
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Post by rcq92130 on Oct 22, 2015 15:14:10 GMT -5
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Post by rcq92130 on Oct 16, 2015 17:42:15 GMT -5
Yeah, I get it J-Boy & P-Guy. But this is intended as a street cruiser, not a racer, so longevity is my heart's desire. Taida (strangely) does not offer break in procedures, but they make engines and stuff for both Sym & Kymco, so I'm using Kymco's procedures ... which are :  |
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Post by rcq92130 on Oct 14, 2015 21:07:36 GMT -5
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Post by rcq92130 on Oct 14, 2015 19:13:12 GMT -5
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Post by rcq92130 on Oct 14, 2015 18:36:01 GMT -5
Fix the 250 engine.
BTW - you never even thanked me.
First you were riding a little child's 50cc scooter. Then you thought about BBK'ing it. I urged you to get a big boy toy. You sneered at me! Then you GOT a big boy toy, and never even said "thanks for the advice!". Now you are fooling around with a 250.
BTW - the 250 is WAY more engine in evetry way. of course more power. But, probably ewater cooled, way more stator, way bigger variator, way better clutch. FIX THE 250 @%)!!!!
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Post by rcq92130 on Oct 13, 2015 20:20:51 GMT -5
Ha.
NOPE! Not a race engine. I don't want to be tearing this thing down in a year
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