I own (from new) a Honda VT1100C Shadow 1995 model. Fantastic bike. Never given me any trouble, until now. Has done 129,800 K's.
The problem is this. When travelling around 90-100 km/h (4th or 5th gear) it bogs down (as in loses power) either in trying to accelerate to pass a vehicle or going up hills. Chugs, and if persisted with will backfire VERY loudly! Always have to back off and change down gears going up a hill - forget about trying to pass a vehicle safely!
If I'm on the flat it will hold around 100-110 km/h in 5th, but only if I'm very gentle on the throttle. Trying to accelerate it will still bog down. Although if I can get to around 125 km/h+ it starts to pull ok, but never very strongly.
I don't have any Honda dealers where I live (Batemans Bay), and the mechanic who is working on it hasn't yet been able to figure it the problem. He has cleaned the carbs, checked the needles and diaphragm (all in good condition) and the fuel pump - also fine.
You folks have any idea's? At this point we are just groping in the dark. Which ain't a good thing!
Well thats a bugger ; Was thinking carbs but you say that has been checked . SO have you checked and cleaned the filter at the petcock itself and also cleaned the air filter or made sure all lines are clear ,not kinked. Some 1100,s i,ve heard the stator breaks down so worth a diagnostic check there and your coil as well. Check also the tank is venting ok . Make sure the cap isnt clogged with a hornets nest .High pressure air will co it . The line in the tank can alos be kinked causing the tank not to vent hence the petrol being drained out as vacum builds up . Hope some of this helps
I should have mentioned that, prior to taking it to the mechanic, I had replaced the plugs (they looked fine but I replaced them anyway), as did the fuel filter and air filter. The mechanic did check the plugs as a matter of course.
Fuel lines are good, fuel flows freely.
Coil is something we haven't looked at, nor compression. Will try those. Although I would have thought that if compression was the problem, it would be evident throughout the revs range, not just around the troublesome 90-100 Km/h.
Cheers for the thoughts. Any more ideas please let me know.
Hi Jimbo and welcome to the SRA forum. I own an 1100 aero and sometime ago I was having problems with the bike backfiring loudly and sometimes a bit of trouble accelerating. I took it to a bike mechanic who found a small crack on the exhaust flange where it connected to the engine. He welded the crack and I haven't had any problems since.
parrott72: Hello everyone, I hope your all going ok.
Apr 17, 2020 15:13:53 GMT 10
billy bones: just a quick hello to everyone and see if anyone is selling an 1100 shadow at a reasonable price. i'll keep an eye out on this site for any leads. thank you.
Jun 11, 2020 15:38:14 GMT 10
billy bones: vt 750 manuals are the same
Jun 11, 2020 15:39:24 GMT 10
Darren12: Hi does anyone have a stock exhaust for a 2008 Vt750c please?
Jul 8, 2020 15:58:43 GMT 10
M R C: OH O O O
Aug 2, 2020 18:05:07 GMT 10
billy bones: hello to the vic bros and sisters and i hope the lockdown is not to bad for you. give us a shout and let me know, you to macca.
Aug 12, 2020 11:25:20 GMT 10
maccca: Hey Billy, I live in a rural area of Vic and I still manage to ride when the weather is good. It's been bloody cold and wet lately..
Aug 13, 2020 8:35:39 GMT 10
Pete1100: Thanks Bill Bones, its a struggle. Enjoyed a 10 min ride to work yesterday. We take what we can get at the moment.
Aug 18, 2020 11:47:35 GMT 10
billy bones: there have been no restrictions in nsw maccca so we can still mellow out on a nice trip to the pub down the road a ways. so if you do escape come and see me, stay for a spell. that's it take what you can get pete1100.i too have an 1100, 1993.
Aug 18, 2020 14:05:53 GMT 10
Pete1100: Nice Billy, I had a 93, and 2 '98s. Got an electraglide ultra now but miss my old shadow for sure.
Aug 20, 2020 9:40:08 GMT 10
billy bones.: to all a good christmass, to all a good night, and if your not pissed by noon, your not doing it right. merry christmass
Dec 22, 2020 8:24:58 GMT 10
Feb 23, 2021 14:22:03 GMT 10
lea: Hi am new to this, recently joined, anyone got info about the may 2021 Honda Shadow ride. Who to contact,where is it taking place here in Australia.
Mar 3, 2021 11:30:51 GMT 10
billy bones: sadly i sold my 1100 shadow to wendy witch and upgraded to a triumph thunderbird all i will say is WOW. maccca i got my comfy seat.
Apr 16, 2021 7:29:05 GMT 10
george: Sounds like a win win for all Billy Bones
Apr 20, 2021 7:38:50 GMT 10
maccca: I look forward to the riding with you Billy. I might be coming your way at the end of May..
Apr 20, 2021 19:09:32 GMT 10
billy bones.: good to hear from you george, say hello to the family and i look forward to the time when we can get together at an agm.
Apr 30, 2021 6:40:58 GMT 10
billy bones.: 0242962670. when anyone is coming through and could use a stop over give me a call and i will meet you and bring you to my place. always have a bed for a brother or sister. that includes you macca.
Apr 30, 2021 6:45:29 GMT 10
miahonda: Hello everyone
Jun 26, 2021 14:33:16 GMT 10
miahonda: New here, as you can tell, pushed enter by mistake
Jun 26, 2021 14:34:03 GMT 10