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Post by rockynv on Jun 16, 2016 23:57:07 GMT -5
I ride with folks on the Savage, Boulevards and VStars on my Sport City 250 and they keep claiming that I must have a 750 in it. The Suzuki are nice and the only two things I see with them that is a problem is the clunky shifting and issues most appear to have balancing the carbs on the multi-cylinder models. They can really gas you if you end up having to sweep the group. Sometimes I just pull off from the group because I find the clunking when they shift more irritating when its in addition to the fumes from the unburned fuel. They make quite a racket when there are several of them.
The Boulevard 850 are the ones most likely to slide slowly off the road due to the excessively hard tires they seem to put on them. I have had to assist in pulling more than one out of a ditch that slid slow motion off the road on a cool 75 degree morning.
Most fun I have is riding with someone on a Savage 600/650 than on the bigger 2 cylinder bikes. Savages are usually a better match off the line to the Sport City and don't appear to slow down as badly as the larger bikes between shifts.
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Post by rockynv on Jun 16, 2016 4:22:19 GMT -5
Any signs that something was injested to damage the cylinder wall? I am presuming that this is a fairly low mileage bike being a 300 so I would be looking for a chipped valve, missing throttle plate screw, broken spark plug, failed air filter, carburetor slide failure and such. If I am following this right you went from a running engine not burning oil to total failure in 2 miles so you want to ensure that the situation that caused that failure has been corrected also or you could end up with another 2 mile ride.
How many miles are there on the bike? Any chance Linhai will warranty the parts?
From the pics I'd almost wonder if you ran low on oil or had an oil pump failure and had a soft seize. Is the oil pump drive still intact? Was it running hot lately?
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Post by rockynv on Jun 12, 2016 21:10:54 GMT -5
Valve time? if you add some oil with bad valve time compressing won't change Will for a valve burnt from the timing being off. We are talking about a fairly new horizontal engine with the exhaust valve on the bottom which would get oiled up in a wet test and potentially boost compression to this level if its not cracked. The short time frame in which this happened speaks to something more going on here than rings wearing out which happens gradually over the years and on an Linhai 300 one would not reasonably expect unless there are well over 35,000 miles on the bike. The bike should have been leaving a smoke screen behind and showing signs of the rings being worn out for some time and been using quite a bit of oil if the rings wore out. The root cause of the sudden failure needs to be determined lest there be a repeat performance. Time to pull the head and inspect things. |
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Post by rockynv on Jun 12, 2016 7:15:14 GMT -5
That can still be a valve timing or burnt valve issue especially since the intake was extremely tight when you checked it. Rings usually do not go bad in 2 miles of riding unless you are out of oil or its been contaminated very badly with something like sugar or fine sand.
Verify the valve timing is correct and that the ratchet on the timing chain tensioner has not failed. If anyone turned the engine using the cam shaft then there is a high probability that the ratchet on the tensioner has been damaged and is releasing when the engine is running.
The valve being tight can also be a sign that the valve seat was not pressed in completely finally dropped a bit cockeyed and may need to be pressed fully square and lapped or recut.
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Post by rockynv on Jun 12, 2016 7:01:13 GMT -5
Spent some time today trying to yank off the front suspension. Looks like I have to take apart the whole front end to take them off. I'm thinking there is something up on top of the forks that I can't get to that is keeping them from pulling through. Sucky. Ended up putting everything back together. Won't be doing that again. Scooters have a single tree so if you want to just remove the fork tubes its all done from the under the bike without removing any plastic. You only need to remove the plastic if you want to remove the entire single tree to get to the steering head bearings. Remember to disengage the steering lock or the tree will not slide out after you remove the handlebars and any fairings mounted with them along with the steering head nut. |
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Post by rockynv on Jun 10, 2016 11:12:54 GMT -5
This will give you some perspective:
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Post by rockynv on Jun 10, 2016 4:13:35 GMT -5
The problem is not actually the pump most times but that at high rpm the vacuum pulses get too short to cause the pump diaphragm to flutter as substantially as when idling which is really the opposite of what you want to have happen. A few tanks of a good fuel system cleaner might help get it back to where it was before. Fuel deposits on the pump diaphragm from when it dried out while sitting idle can greatly reduce its efficiency. They do like to be kept clean and free of any residue that makes the diaphragm less pliable or the directional valves too stiff to move freely. On some the valves are just tabs cut into the excess parts of the diaphragm and when they get stiff then they may take longer to close so that there is not enough time for that to occur during high speed operation when they are dirty and the pulses are short and weaker. A well sorted 250 should be able to safely cruise the Interstate and its not unreasonable to want to reduce the risk becoming part of a Texas Hood Ornament on some Big Ole Boat attached to the Long Horns so popular in your neck of the woods.  |
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Post by rockynv on Jun 9, 2016 4:34:59 GMT -5
Rev limiters usually cause the engine to sputter and resume in a very small rpm band going off and on again right away so I would be inclined to think fuel pump not being able to keep up or exhaust valve sticking. Bike has been out of operation for a while during the light upgrade so it may be time for a good fuel system cleaning and possibly for some Mystery Oil.
When was the last valve adjustment?
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Post by rockynv on Jun 8, 2016 4:18:38 GMT -5
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Post by rockynv on Jun 7, 2016 4:12:16 GMT -5
That is a fuel injected scooter so you need a regulated fuel pump that probably puts out 50 to 70 psi and draws what the fuel injection controller that it mates with expects.
All done and told its still probably a common Carter in-tank fuel pump found in many small 4 cylinder cars which they put in tank to cool them which keeps the cost down. If you spec out the pump separately from the complete in-tank pump assembly the cost will be lower however the pack usually has the fuel pressure regulator, fuel pickup with sock along with the fuel filter and is part of the re-circulation system that also prevents vapor lock. Those fuel injection pumps can die an early death if you do not put in the full system and recirculate the fuel to keep them cool.
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Post by rockynv on Jun 6, 2016 4:12:10 GMT -5
Old George Foreman still gave him a good go though. Good that we still have a few of those boys still hanging on and doing well.
Sepsis is not the best way to go as its a lingering death but at least it not horribly painful. Harder on Ali's family as they sat by and watched. I was there in September doing similar when my Mom passed.
As a person I for some reason like George better. In a charity exhibition bout long after he retired one of the up and comers tried for a KO on the now elderly George with George responding by ending the exhibition with a right to the jaw. The up and comer said it was like being hit with a bowling ball and that it was disrespectful of him to try to KO someone during a charity event so he got what he had coming. George was really sorry that they let the people at the event down as he had wanted the bout to last for a few more rounds to get folks into the giving mood from seeing more of what they came for instead of ending things early but when the kid went from exhibition to trying to hurt him he had to follow suite since at his age things don't heal so quick. You could tell by the look on his face he was truly upset about letting the charity down and potentially breaking the kids jaw.
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Post by rockynv on Jun 6, 2016 3:55:00 GMT -5
Another car that Leo would like and you would not want to tangle on a bike with was the Big As A Whale 1967 Imperial Crown 4 passenger Town Coupe I had and wish I had never sold. Actually bigger and heavier than a Sedan Deville. While they called it a 440 it was really a 500 under the hood. Front and rear AC, walnut trim, Corinthian Leather buckets for all 4 passengers, telescopic and tilting steering wheel, reverb radio (made it feel bigger inside like a giant concert hall even though not stereo), power seats and mirrors. Thermostats for the Heat and AC had dial controls the set the temperature not just hot/cold sliders. Even the headlight dimmer, wiper delay, automatic headlight dimmer, rain sensor and cruise control were set by numbered dial controls with the cruise settings listed from 30 to 120 mph. With the torsion bar suspension the car was tight and did not wander all over like the GM and Ford/Lincoln/Mercury competition of the era. L series tires were expensive too and looked more like truck tires. Those were classy cars and if you owned one people automatically presumed you were a doctor, lawyer, corporate officer of a major company or high ranking politician
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Post by rockynv on Jun 4, 2016 6:12:09 GMT -5
Not bad for $1830.53/₡995,000. Do new car dealers usually carry motorcycle where you live?
If you live where there are many roads like this then that's the bike for the job.
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Post by rockynv on Jun 2, 2016 12:18:32 GMT -5
Leo - Mine was a 63 Olds Holiday Coupe with the 394 Hi Output Rocket V8. Friends called it the Vette Eater while we called it the Flying Brick. If your bike got hit by one of those that was the end.
Despise when kids text at the dinner table instead of talking.
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Post by rockynv on Jun 1, 2016 11:46:40 GMT -5
Why not just disassemble them and sell off the parts? Then you get into who are you going to put on the city payroll to disassemble, catalog, store the parts and handle the transactions. How will the heat and electric be payed for where this is done. Will it be possible to break even or will the taxpayers have to make up the difference and potentially be left making up the difference? Whats the safe bet to protect the city from further losses? |
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