Author Topic: 650 Himalayan (Interlayan)  (Read 1115 times)

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longstrokeclassic

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AzCal Retred

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Reply #1 on: July 21, 2022, 04:45:06 am
« Last Edit: July 21, 2022, 04:48:58 am by AzCal Retred »
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


AzCal Retred

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Reply #2 on: August 15, 2022, 02:14:46 am
https://www.bikebound.com/2022/04/12/himalayan-650/

DIRT WEAPON: 856CC ROYAL ENFIELD HIMALAYAN

"...Then he took the knife to the machine, shaving off as much weight as he could. He reckons he shed more than 65 pounds from the original machine, which now weighs a tick over 400 pounds "

“I stripped off maybe 30-something kilos and we ended up with a bike that weighs 182 kilos on a full tank and a bit over 70 hp.”


A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


Spicyred

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Reply #3 on: December 12, 2022, 12:59:00 am
London Motorcycle Show 2022: Royal Enfield Himalayan 650 (Cooperb Motorcycles Interlayan 650)
https://www.youtube.com/watch?v=7wnYYSx1gDg

https://www.advrider.com/heres-your-royal-enfield-650-himalayan-courtesy-of-cooperb-motorcycles/
https://www.youtube.com/watch?v=Z9CnOyNP50I&feature=emb_logo

Here’s Nathan Millard’s first ride on Cooperb”s 650.

https://youtu.be/gtp15pJ0eaw

He echoed what I suspected in that the lovely chugging nature of the 411, relevant to “greenlaning” is totally lost. That is something I would miss for sure.
Current rides:
2019 Ice Queen GT650
2021 Himalayan


Spicyred

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Reply #4 on: December 12, 2022, 10:35:24 pm
Just noticed spelling error:
Nathan Millward.
Apologies Nathan.
Current rides:
2019 Ice Queen GT650
2021 Himalayan


AzCal Retred

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Reply #5 on: January 28, 2023, 03:28:19 am
A bigger Himalayan? - Interlayan 650 First Ride

Whilst over at Cooperb riding the new BSA I also got chance to take Ian's one off 'Interlayan' 650 out for a spin. It's essentially a 650 Interceptor mated to a Himalayan front end complete with custom tank, seat and 2 into 1 exhaust. Interview with Ian Cooper.

https://www.youtube.com/watch?v=gtp15pJ0eaw

A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


him a layin

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Reply #6 on: January 28, 2023, 04:11:49 pm
i've had 3 (ok, 4 )bikes over the years, a kaw 175 single, a yamaha DT400 single, and a kaw 500 H1 triple and now of course a himalayan, and i wonder, what effect a bigger engine would have on the (arguably underpowered) himalayan's riding quality?


AzCal Retred

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Reply #7 on: January 28, 2023, 04:59:09 pm
More mass requires stiffer suspension if you actually off-road it. Corners become problematic, tire traction fights mass resisting directional inputs. The "Desert Sleds" went extinct after lightweight 250cc-400cc two-strokes showed up - 100 pounds lighter is an unbeatable advantage in the rough, a 30 HP 250 will push you close to 80 MPH on the flats. Very few sane riders exceed those speeds.

A heavy bike with long travel is plush but "wallowy", OK on the street but not so much on the trail. The reality is a nice street bike that can run over a dead racoon or helmet-sized chuck-hole and not toss you off, but remember to stay awake in the corners. A 650 Himalayan (Interlayan?) would sell well as a great "Adventure" bike IMHO. 6"-7" of travel on both ends handles the rough bits, that lovely 650 would push you and some luggage along just fine on the highway or at least halfway smooth dirt road. I'm pretty sure you could keep the all-up weight around 430 - 450 pounds if you skip the weird bodywork and foo-foo attachments. Double the power and maybe only 20-30 pounds over what you ride now.

There are 465cc - 475cc kits available for the 411, largely just bolt on, that pick up 6-10 HP. a 30 HP Himalayan would be spunky and a LOT more roadable. Freeway, hills & headwinds immediately get a lot less challenging. Most folks here that have tried them enjoy the extra Ongawa, and they are a lot cheaper than waiting & buying the new LC450 if & when it appears. A bird in the hand...
« Last Edit: January 28, 2023, 05:55:41 pm by AzCal Retred »
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


him a layin

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Reply #8 on: January 28, 2023, 09:04:25 pm
thanks for the reply. i'm very much tempted to either : hunt up another repairable h1, or up the hp on the himalayan. hence considering my options. i loved the simplicity of the 2-stokes, not interested in water-cooled.
« Last Edit: January 28, 2023, 09:07:40 pm by him a layin »


AzCal Retred

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Reply #9 on: January 29, 2023, 12:02:00 am
One thing that puts me off of 2-stroke multis is the press-together crank and parts availability. The inner crank seals on a 40-50 year old machine are unlikely to be in good condition and they HAVE to work. The crankpins are another, all needle bearing big ends, so ANY rust and they are toast. I would assume that all the good 2-stroke press-together-crank-savvy machine shop personnel from the 1970's have quit, died or retired by now. If I was serious about an H1 Kamikaze, Bazooki Titan or even Yamabanger RD400 I'd seriously check out the crank overhaul situation first, it's the guts of the machine. If the injector metering pump is dead and unavailable/unobtainable you can always just pre-mix, but bad inner crank seals must be replaced. That takes parts, fixtures and skill.
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


him a layin

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Reply #10 on: January 29, 2023, 01:28:44 am
something like this? https://www.vintco.com/
pretty decent selection of H1 bits


AzCal Retred

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Reply #11 on: January 29, 2023, 02:04:02 am
Now THAT is a great find! Looks like Vintco can handle even a totally thrashed bottom end. All you need now is an H1 or H2 that's sat in a garage for the last 30 years! They're out there.

Thanks for posting that link, hopefully I'll be able to put it to use on my brother-in-laws 1970? A7 Samurai! - ACR -

Snow machines use a lot of 2-stroke multis - THAT's where the expertise went! ...more links...

https://www.lasleeve.com/services/crankshaft-services
Rebuild 2 Stroke crankshaft, triple rod crank (labor only)   $325.00

http://crankworks.com/index.php/vintage-services

https://thecrankshopvt.com/crankshaft-repair

https://hvccycle.net/crank-shaft-overhaul/
« Last Edit: January 29, 2023, 02:43:47 am by AzCal Retred »
A trifecta of Pre-Unit Bullets: a Red Deluxe 500, a Green Standard 500, and a Black ES 350.


him a layin

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Reply #12 on: January 29, 2023, 05:56:43 am
 8) glad i could help. i've gotten a lot of good info here, seems the least i can do to share what little i know.