600 carb monster very high tickover when hot

m600jim · 15-03-2022, 07:00 AM

My 1997 600 monster runs nicely but after an hour or so once it's nice and hot the tickover seems very high (much higher than when cold, I'm guessing about 2000 rpm). If I drag the clutch slightly using no throttle when at a standstill the tickover drops due to the load on the engine but then got back up again - so I think it's probably not sticking carb sliders. Any other hints on where to start looking.
Does not seem to be affected by handlebar position so I don't think it's a cable problem...

I doubt the carb has been cleaned since it was new so may be blocked jets etc but I'm hoping for something simple!

Thanks for any suggestions!

Cheers

James

Nasher · 15-03-2022, 07:44 AM

I'd be making sure the cables are adjusted properly first to ensure the throttles are shutting fully.
Is there any slack at the twist grip?

It could also just be a tweek of the idle adjustment screws needed under the carbs.

Doggy · 22-03-2022, 09:11 PM

My 600ss has a higher tickover when hot, about 1500/1600 compared to cold . Although 20000 does seem a bit excessive . Not been an issue for me really over the last couple of years . I'd rather it was slightly too high than too low . My superlight's tickover seems too low and always feels like it's going to stall when i pull up .

15-03-2022, 07:00 AM	#1
m600jim Registered User Join Date: Oct 2021 Location: Bristol Bike: M600 Posts: 27	600 carb monster very high tickover when hot My 1997 600 monster runs nicely but after an hour or so once it's nice and hot the tickover seems very high (much higher than when cold, I'm guessing about 2000 rpm). If I drag the clutch slightly using no throttle when at a standstill the tickover drops due to the load on the engine but then got back up again - so I think it's probably not sticking carb sliders. Any other hints on where to start looking. Does not seem to be affected by handlebar position so I don't think it's a cable problem... I doubt the carb has been cleaned since it was new so may be blocked jets etc but I'm hoping for something simple! Thanks for any suggestions! Cheers James

15-03-2022, 07:44 AM	#2
Nasher Registered User Join Date: Jul 2014 Location: Portsmouth Bike: M900 Posts: 1,510	I'd be making sure the cables are adjusted properly first to ensure the throttles are shutting fully. Is there any slack at the twist grip? It could also just be a tweek of the idle adjustment screws needed under the carbs. __________________ Heaven doesn't want me, and Hell is afraid I'll take over.

22-03-2022, 09:11 PM	#3
Doggy Registered User Join Date: Apr 2017 Location: Kent Bike: M796 Posts: 510	My 600ss has a higher tickover when hot, about 1500/1600 compared to cold . Although 20000 does seem a bit excessive . Not been an issue for me really over the last couple of years . I'd rather it was slightly too high than too low . My superlight's tickover seems too low and always feels like it's going to stall when i pull up .