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scarylarry
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« on: September 23, 2018, 01:26:15 AM » |
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was riding pretty hard, up, around and down the bluffs today..ran like a champ..hit the highway to go home and all the sudden lost power{still running}..still idles..no pops..hard to explain the sound but I would say flat and vibrating.. basically doesn't want to take fuel..really hard to take off from a stop..will run at 65 mph ok but tops out at 75 full throttle..just from the finger test in the exhaust seems like all cylinders are firing..seems like it could be a hundred different things..btw,,no I have not worked on or changed anything lately..hoping 1 of you knowledgeable folks could help me get started in what to look for/ test..after thought.. I did open the gas cap thinking maybe vent hose..no change..any ideas are greatly appreciated
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The emperor has no clothes
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« Reply #2 on: September 23, 2018, 04:26:31 AM » |
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Being that you ruled out a kinked vent line. I would suspect a failing petcock. A new cover set is probably in order.
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3W-lonerider
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« Reply #3 on: September 23, 2018, 04:39:58 AM » |
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Classic signs of a failing pet rooster.
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h13man
Member
Posts: 1750
To everything there is an exception.
Indiana NW Central Flatlands
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« Reply #4 on: September 23, 2018, 04:53:03 AM » |
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Check the plugs. Mine would do this every 10,000 mi. Done it twice so I switched to Iridiums plugs. OEM says to change every 8,000. I ride until they quit and keep a spare on board. Old habit from dirt days.
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indybobm
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« Reply #5 on: September 23, 2018, 05:13:26 AM » |
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could be that something from the road is blocking the air inlet on the airbox.
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So many roads, so little time
VRCC # 5258
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Jims99
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« Reply #6 on: September 23, 2018, 05:17:28 AM » |
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Classic signs of a failing pet rooster.
Being that you ruled out a kinked vent line. I would suspect a failing petcock. A new cover set is probably in order.
I agree. Same has happened to me. Mine ended up being a small split in vacuum line. Couldn’t see it, but found spraying starting fluid around hoses. |
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The light at the end of the tunnel, is a train.
99 tourer
00 interstate
97 standard
91 wing
78 trail 70
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Pete
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« Reply #7 on: September 23, 2018, 05:29:05 AM » |
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If you suspect the petcock is beginning to fail, go to reserve to see if that clears up the issue or fill the tank.
If either resolves the issue, order the cover set and a vacuum line, replace both.
And clean the petcock very well inside with cleaner and compress air.
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Chrisj CMA
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« Reply #8 on: September 23, 2018, 06:06:50 AM » |
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mine did the same thing. Installed the cover set thing. Did it again a year later. Thats when I went to a Pingel. Been ten years and no trouble whatsoever. The problem is that the OEM when functioning perfectly can only supply exactly enough fuel for hard accelerations or operating at top speed. Any reduction in fuel delivery capability is a rideability issue at max flow situations. The Pingel easily flows as much as the engine demands under any conditions and has no diaphragm to tear. Just keeps working and working. its a quality piece of equipment
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The emperor has no clothes
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« Reply #9 on: September 23, 2018, 06:28:56 AM » |
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Check the plugs. Mine would do this every 10,000 mi. Done it twice so I switched to Iridiums plugs. OEM says to change every 8,000. I ride until they quit and keep a spare on board. Old habit from dirt days.
Wow, that’s odd. I’ve got a combined 190k on original plugs. I’ve had new ones waiting in the wings for about 3 years now. One day I’ll get around to switching them out. |
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #10 on: September 23, 2018, 07:51:55 AM » |
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Check the plugs. Mine would do this every 10,000 mi. Done it twice so I switched to Iridiums plugs. OEM says to change every 8,000. I ride until they quit and keep a spare on board. Old habit from dirt days.
Wow, that’s odd. I’ve got a combined 190k on original plugs. I’ve had new ones waiting in the wings for about 3 years now. One day I’ll get around to switching them out. yeah it's strange mother Honda says 8k to replace spark plugs (had to check the manual  ). I have over 40k on mine, check them occasionally to see if tan, but not going to change NGKs every 8k unless there's a problem how they're firing--and if there is it's likely not the plugs! |
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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scarylarry
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« Reply #11 on: September 23, 2018, 09:43:58 AM » |
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To update, I touched the exhaust pipes again today and no. 1 cylinder is cold..Pulled that plug wire and started it up..runs the same..could 1 dead cylinder cause the problems I described above..I completely toppped off with fuel and switched to reserve..no change. I just want to be sure the petcock is the problem before changing it.. Thanks for the help
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Pete
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« Reply #12 on: September 23, 2018, 09:53:17 AM » |
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To update, I touched the exhaust pipes again today and no. 1 cylinder is cold..Pulled that plug wire and started it up..runs the same..could 1 dead cylinder cause the problems I described above..I completely toppped off with fuel and switched to reserve..no change. I just want to be sure the petcock is the problem before changing it.. Thanks for the help
Sometimes it can be a little difficult to feel one missing cylinder. Yes fix that first and retest. |
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scarylarry
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« Reply #13 on: September 23, 2018, 10:30:11 AM » |
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1 more observation..if I let the bike sit for 1/2 an hour or more it seems to run fine for a cpl mins..then the loss of power returns..would this help confirm a petcock problem?
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Chrisj CMA
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« Reply #14 on: September 23, 2018, 12:07:35 PM » |
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1 more observation..if I let the bike sit for 1/2 an hour or more it seems to run fine for a cpl mins..then the loss of power returns..would this help confirm a petcock problem?
Yes, absolutely, fuel trickles in then gets used up faster than the fuel valve can replace it. |
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Valker
Member
Posts: 2995
Wahoo!!!!
Texas Panhandle
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« Reply #15 on: September 23, 2018, 06:16:49 PM » |
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Did you make ANY change to the fuel lines? i,e, Quick disconnect, filter, new hose???
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I ride a motorcycle because nothing transports me as quickly from where I am to who I am.
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Rio Wil
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« Reply #16 on: September 23, 2018, 06:54:47 PM » |
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Check the plugs. Mine would do this every 10,000 mi. Done it twice so I switched to Iridiums plugs. OEM says to change every 8,000. I ride until they quit and keep a spare on board. Old habit from dirt days.
Wow, that’s odd. I’ve got a combined 190k on original plugs. I’ve had new ones waiting in the wings for about 3 years now. One day I’ll get around to switching them out. Ditto on the above, these engines are so easy on plugs, unless you have some issue that's fouling plugs, every 100K miles changes are fine. Even at 100K, you won't likely see any performance change with new plugs......it's just one of those feel good things for doing something nice for the old gal. |
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scarylarry
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« Reply #17 on: September 23, 2018, 11:02:47 PM » |
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problem solved..turned out to be a loose wire on the #1 and 2 coil..crimped it a bit tighter and runs smooth again..Thanks for the help everyone
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Forge
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« Reply #18 on: September 24, 2018, 03:33:55 AM » |
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problem solved..turned out to be a loose wire on the #1 and 2 coil..crimped it a bit tighter and runs smooth again..Thanks for the help everyone
Glad you got her sorted out! |
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Tfrank59
Member
Posts: 1364
'98 Tourer
Western Washington
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« Reply #19 on: September 24, 2018, 05:47:54 AM » |
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problem solved..turned out to be a loose wire on the #1 and 2 coil..crimped it a bit tighter and runs smooth again..Thanks for the help everyone
Yeah thanks for the update. That's got to be one of the first times someone's reported that problem |
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-Tom
Keep the rubber side down. USMC '78-'84
'98 Valkyrie, ‘02 VTX 1800, '96 Royal Star, '06 Drifter, '09 Bonneville, '10 KTM 530, '04 XR 650, '76 Bultaco, '81 CR 450, '78 GS 750...
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h13man
Member
Posts: 1750
To everything there is an exception.
Indiana NW Central Flatlands
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« Reply #20 on: September 24, 2018, 07:02:40 AM » |
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Check the plugs. Mine would do this every 10,000 mi. Done it twice so I switched to Iridiums plugs. OEM says to change every 8,000. I ride until they quit and keep a spare on board. Old habit from dirt days.
Wow, that’s odd. I’ve got a combined 190k on original plugs. I’ve had new ones waiting in the wings for about 3 years now. One day I’ll get around to switching them out. As you've said many times before.  To everything there are exceptions. Maybe this winter I'll get my ride completely gone thru as the parts keep piling up for the project!  Otherwise I'll keep riding until Nov. Hopefully the weather stays good. Remember I live in a climate that the air humidity/temps can go up and down like a yo-yo.
scarylarry thanks for the update. |
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« Last Edit: September 24, 2018, 07:09:32 AM by h13man »
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