Author Topic: New Thumper and this one is a runner!!!  (Read 431 times)

Silverfox

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New Thumper and this one is a runner!!!
« on: January 01, 2023, 06:13:35 PM »
New toy, well impressed so far! Bit of an impulse buy, i don't really know anything about Aprilia so hoping it behaves itself!!

CrazyFrog

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Re: New Thumper and this one is a runner!!!
« Reply #1 on: January 01, 2023, 08:46:15 PM »
Very nice indeed, I think I'm right in saying the BMW F650 was developed from this?
2023 Royal Enfield Meteor 350
2021 Honda CB125F

Itsme

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Re: New Thumper and this one is a runner!!!
« Reply #2 on: January 01, 2023, 09:57:19 PM »
Very nice indeed. Pete is right the F650s were built by Pegaso I think and are basically the same bike. I have had 3 F650s and really rate them, the only reason I don't have one now is my knees hurt too much to paddle one when manoeuvring. Enjoy the new toy.

Ian

Moto63

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Re: New Thumper and this one is a runner!!!
« Reply #3 on: January 02, 2023, 11:49:57 AM »
Yes... cool looking steed Gareth. Hope you have many S miles on it👍😉
Cheers, Michael

Silverfox

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Re: New Thumper and this one is a runner!!!
« Reply #4 on: January 02, 2023, 01:27:01 PM »
UPDATE - its now not a runner!!!! Smells very fuely - plug issue maybe!!!

CrazyFrog

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Re: New Thumper and this one is a runner!!!
« Reply #5 on: January 02, 2023, 04:35:03 PM »
UPDATE - its now not a runner!!!! Smells very fuely - plug issue maybe!!!

Gareth, if it runs the same Mikuni carb (BST33 IIRC) as the F650, they are prone to sticking float valves and consequent flooding of the engine. I had to get a carb rebuild kit for my F650 and also had to source some of the tiny 'O' rings that hold the jets and floats in place on my F650's carb before it would run nicely.
2023 Royal Enfield Meteor 350
2021 Honda CB125F

Silverfox

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Re: New Thumper and this one is a runner!!!
« Reply #6 on: January 02, 2023, 05:43:28 PM »
UPDATE - its now not a runner!!!! Smells very fuely - plug issue maybe!!!

Gareth, if it runs the same Mikuni carb (BST33 IIRC) as the F650, they are prone to sticking float valves and consequent flooding of the engine. I had to get a carb rebuild kit for my F650 and also had to source some of the tiny 'O' rings that hold the jets and floats in place on my F650's carb before it would run nicely.
Its electronic fuel injection not carbs!!
 

johnr

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Re: New Thumper and this one is a runner!!!
« Reply #7 on: January 02, 2023, 07:02:48 PM »
Very nice indeed, I think I'm right in saying the BMW F650 was developed from this?

i think they share a basic engine architecture. iirc the engines for both were built by rotax.

AleXBR

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Re: New Thumper and this one is a runner!!!
« Reply #8 on: January 02, 2023, 10:22:45 PM »
And it's a heavily cosmetically altered version of that engine in the new lardy 'BSA' Gold Star.

CrazyFrog

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Re: New Thumper and this one is a runner!!!
« Reply #9 on: January 03, 2023, 07:32:44 AM »
Its electronic fuel injection not carbs!!

Better still - should have much better fuel consumption than my carby F650 then :)
2023 Royal Enfield Meteor 350
2021 Honda CB125F