First of all, I'm a newbie here guys. I got a VFR 750 engine a few weeks back. Was idling and running fine. I usually start it with at least half choke. Yesterday go to start it, no go, didn't matter if I had full choke... But I managed to start it with choke off, and just giving it some revs. Once warmer I could start it with a small amount of choke no worries, but as soon as Id increase choke, it would miss and stall. Un;ess I increased it extremely slowy it wouldnt stall but it would miss badly. I can't figure it out, anyone got any ideas??
Choke issue
Started by dutchy1983, May 09 2012 07:36 AM
5 replies to this topic
#1
dutchy1983
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- Why VFRD?:Just got a VFR750
- Location:Melbourne, Australia
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Posted 09 May 2012 - 07:36 AM
#2
AnikMankar
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- Forum Contributor
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Moto Grand Prix Racer
- Why VFRD?:to meet my fellow VFRD friends ...
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In My Garage::VFR800 - 1998,
SX4 - Suzuki
Previous Bikes
GSX750 - 1981
RD350 - 1985
Posted 09 May 2012 - 11:38 AM
one should not accelerate when the Choke is on. You will flood the engine if you rev with the choke on.
#3
dutchy1983
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- Why VFRD?:Just got a VFR750
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Posted 09 May 2012 - 04:45 PM
Yeah that's obvious mate. I said I can only start it cold with revs and not choke. If I try with choke, the more choke I give, it start missing, then stalls
#4
JeffLaurence
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Factory Team Rider
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Posted 09 May 2012 - 05:28 PM
What year ( carbs or FI)? Pull the plugs and have a look-- maybe choke cable is binding (no lube or improper routing)
GL
Jeff
GL
Jeff
#5
AnikMankar
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- Forum Contributor
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- 688 posts
Moto Grand Prix Racer
- Why VFRD?:to meet my fellow VFRD friends ...
- Location:India, Mumbai
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In My Garage::VFR800 - 1998,
SX4 - Suzuki
Previous Bikes
GSX750 - 1981
RD350 - 1985
Posted 09 May 2012 - 11:35 PM
- if cold start is easy without choke, and does not run well when hot - the bike is running too rich. - Check air filter
#6
dutchy1983
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- Why VFRD?:Just got a VFR750
- Location:Melbourne, Australia
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Posted 10 May 2012 - 03:15 AM
Cheers for the input guys. The engine is actually in my gokart, pretty sure it was from a 90 model vfr 750, 6 speed. It's sort of an intermittent problem. Got home from work started with half choke, idled fine for a few minutes, then just died, could only start it again with the choke off and give it revs, as I eased off the throttle it would almost die again. The plugs all look pretty new, they were pretty dry looking though.. It's weird, the first time it was sounding smooth, after that it almost was as if it could have been on 3 cylinders, not too sure. Would I be best to just change the plugs anyway, one could be dodgy?
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