Templar X gas mileage

Weresquatch · 04-24-2024, 02:41 PM

I used the search feature a few times and didn't find the answer to this question which *I'm sure* has been covered but, mea culpa.

What sort of gas mileage are you seeing from your Templar X? Mine only has 180 miles total (I'm taking it easy until 200). On my way to work I noticed a power blip very briefly in 6th gear under throttle. It happened twice. I currently have 70 miles on the current tank since my last fill-up with the petcock valve pointing down (haven't tried the other "lobe" yet). I have it rejetted and it has been very good so far and isn't running lean I don't think. Might I be getting low on fuel so had a brief fuel delivery/tank shosh issue?

Thanks in advance for your time.

Thumper · 04-24-2024, 05:39 PM

My riding style involves 5 to 10 mile jaunts to local off road areas. I just add fuel from a can I put either 89 or 91 octane in (usually 91 since I use it for small engines and the dirt bikes). So I have never really gotten a good idea of how many miles I get on a gallon of gas. My guess is 60mpg at best since I tool around off road having fun in the steep climbs and wheelie way too much

And I also geared it down with a 51T rear sprocket and dropped a tooth in the front as well. And I don't really believe the odometer anyway. I may never know!

Weresquatch · 04-24-2024, 06:04 PM

Yeah, it definitely acted like short term fuel cut off but it was very brief not like what a clogged filter would do. It has 91 in it and while I only have 70 miles on this tank and have kept it to 7k rpm max during break in I'm not too gentle on the throttle. There's a gas station a quarter mile from my employer so to be safe I'll hit it on the way home....

Thumper · 04-24-2024, 07:27 PM

If you have the same twin lobe input on the petcock, my left fuel hose was bent enough to pinch off fuel. I shortened it to alleviate the bend. I did run out once and switch the the other lobe to get home to my gas tank

Texas Pete · 04-24-2024, 09:46 PM

47.8 mpg

That’s hammering it for a fun ride most of the time

ProDigit · 04-24-2024, 09:53 PM

If mpg is what you're after, do a sprocket swap.
Change the gearing to rev the engine lower, and ride more between 35-55 mph in final gear. There's no reason why this bike couldn't reach 90mpg, when my Honda Rebel 250 could reach 100MPG fuelups on specific rides.

panzer77 · 04-25-2024, 12:13 PM

I Purchased my X in Feb and have been tracking MPG. I have the stock carb with factory jetting. I want a good idea of the range to plan for longer rides.

2nd Fill up 61 MPG
3rd Fill up 58 MPG
4th Fill up 54 MPG

I have not had too much time on trails so its be mainly city and flat roads at 4300 ASL.

Weresquatch · 04-25-2024, 12:38 PM

Good news is no problem going home so....deus ex machina? Anyway, my X was purchased to be 80/20 but with the bias being off-road. I only want to travel on tarmac to get to dirt.

I appreciate the inputs on mileage. I'll just hit filling stations at 80 miles on the triometer and look at gas storage solutions for an extra gallon or so.

Right now my X is pushing 55mph at 7k. I'd like that number to be more like 62-65mph at 7k. What rear sprocket reductions do y'all recommend? I'm thinking 42t? I want to maintain as much off-road torque as I can but still not tax the motor too much on hwy sprints to trailheads especially when loaded down with some gear.

Thanks in advance.

Thumper · 04-26-2024, 01:03 PM

As I recall, OEM sprockets are 13/49 = 0.2653

If you go to a 47T rear, new ratio is 13/47 = 0.2766

% inrease in gear ratio can be calculated
0.2766 - 0.2653 = 0.0113

0.0113/0.2766 * 100 ~ 4.1% increase. So if it was going 60 before, it will go 62.4 with the new sprocket at the same rpm. Each gear will be affected exactly the same, by ~4.1% faster at any given rpm.

This is the way I calculate it. Please, anyone feel free to correct me if this is not mathematically correct.

So choose your target and then see what sprockets are available to make it happen. JT sprocket numbers are in the first post:
https://www.chinariders.net/showthread.php?t=32177

Weresquatch · 04-26-2024, 01:31 PM

When I broke out my gear inch calculator I found that going from 13/49 to 13/42 (a 7T drop) would yield about a 16.7% difference. In your example a 2t drop yielded about 4% so I think we're pretty close.

Assuming 54mph at 7K going to a 42T rear should yield about 63mph which is about where I was hoping to be. I appreciate you chiming in with your maths.

J4Fun · 04-26-2024, 01:40 PM

Quote:

Originally Posted by Weresquatch

Good news is no problem going home so....deus ex machina? Anyway, my X was purchased to be 80/20 but with the bias being off-road. I only want to travel on tarmac to get to dirt.

I appreciate the inputs on mileage. I'll just hit filling stations at 80 miles on the triometer and look at gas storage solutions for an extra gallon or so.

Right now my X is pushing 55mph at 7k. I'd like that number to be more like 62-65mph at 7k. What rear sprocket reductions do y'all recommend? I'm thinking 42t? I want to maintain as much off-road torque as I can but still not tax the motor too much on hwy sprints to trailheads especially when loaded down with some gear.

Thanks in advance.

Just asking, you don’t have room to maybe go up 2 on the front rather than reduce the size of sprocket in the rear to achieve your lower rpm goal?

Weresquatch · 04-26-2024, 01:49 PM

Hadn't checked honestly. I'm just sussing out opinions before I do it. I would think there's room for a 2T change up front. That would necessitate a new chain maybe.

Just used a gear inch calculator instead of relying on my scribbling....Going from 49t in the rear to a 42t would yield 16.7% increase whereas running a 15/49 yields a 15.4% difference and probably needing 4 more chain links.

Thumper · 04-26-2024, 01:53 PM

Not sure there is room for a 15T front sprocket, but that would be a big change anyway(13T to 15T). I think 13 to 14 would be about a 7.6% increase, or 60 becomes ~64.5mph at same rpm, right?

ProDigit · 04-26-2024, 10:39 PM

Quote:

Originally Posted by Thumper

Not sure there is room for a 15T front sprocket, but that would be a big change anyway(13T to 15T). I think 13 to 14 would be about a 7.6% increase, or 60 becomes ~64.5mph at same rpm, right?

2T isn't too big of a change.
On my X-Pro 150, I swapped out the front 15T for a 19T.
I still can wheelie in 1st(with pulling handlebars), but no longer in 2nd or 3rd.

It did lower rpm from 8.7k rpm at 55mph top speed, to 7.5k rpm at 60mph. Top speed increased, and rpm lowered to peak HP of the engine.

04-24-2024, 02:41 PM	#1
Weresquatch Join Date: Jan 2024 Posts: 93	Templar X gas mileage I used the search feature a few times and didn't find the answer to this question which I'm sure has been covered but, mea culpa. What sort of gas mileage are you seeing from your Templar X? Mine only has 180 miles total (I'm taking it easy until 200). On my way to work I noticed a power blip very briefly in 6th gear under throttle. It happened twice. I currently have 70 miles on the current tank since my last fill-up with the petcock valve pointing down (haven't tried the other "lobe" yet). I have it rejetted and it has been very good so far and isn't running lean I don't think. Might I be getting low on fuel so had a brief fuel delivery/tank shosh issue? Thanks in advance for your time. __________________ Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900 Last edited by Weresquatch; 04-24-2024 at 04:14 PM.
	0

04-24-2024, 05:39 PM	#2
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,220	My riding style involves 5 to 10 mile jaunts to local off road areas. I just add fuel from a can I put either 89 or 91 octane in (usually 91 since I use it for small engines and the dirt bikes). So I have never really gotten a good idea of how many miles I get on a gallon of gas. My guess is 60mpg at best since I tool around off road having fun in the steep climbs and wheelie way too much And I also geared it down with a 51T rear sprocket and dropped a tooth in the front as well. And I don't really believe the odometer anyway. I may never know! __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
	1

04-24-2024, 06:04 PM	#3
Weresquatch Join Date: Jan 2024 Posts: 93	Yeah, it definitely acted like short term fuel cut off but it was very brief not like what a clogged filter would do. It has 91 in it and while I only have 70 miles on this tank and have kept it to 7k rpm max during break in I'm not too gentle on the throttle. There's a gas station a quarter mile from my employer so to be safe I'll hit it on the way home.... __________________ Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900
	0

04-24-2024, 07:27 PM	#4
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,220	If you have the same twin lobe input on the petcock, my left fuel hose was bent enough to pinch off fuel. I shortened it to alleviate the bend. I did run out once and switch the the other lobe to get home to my gas tank __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
	2

04-24-2024, 09:46 PM	#5
Texas Pete Join Date: Nov 2022 Location: Dallas TX Posts: 578	47.8 mpg That’s hammering it for a fun ride most of the time __________________ 2022 1/2 Templar X 250 - 6 gear model - 13 Front / 40 Rear Sprockets - #42 / #120 Jets - 1mm thick nitrile O-ring needle shim (removed) - Kenda K761 Dual Sport Tires - Sedona Standard Thickness Inner Tubes - Stock OEM battery, carburetor, spark plug still going strong - https://youtu.be/dhAYEKH-jFQ Texas Pete's Templar X 250 Torque Specifications Sheet Texas Pete's Engine Displacement Calculator Texas Pete's Tire and Rim Compatibility
	2

04-24-2024, 09:53 PM	#6
ProDigit Join Date: Aug 2013 Posts: 53	If mpg is what you're after, do a sprocket swap. Change the gearing to rev the engine lower, and ride more between 35-55 mph in final gear. There's no reason why this bike couldn't reach 90mpg, when my Honda Rebel 250 could reach 100MPG fuelups on specific rides. __________________
	0

04-25-2024, 12:13 PM	#7
panzer77 Join Date: Feb 2020 Location: Utah Posts: 17	I Purchased my X in Feb and have been tracking MPG. I have the stock carb with factory jetting. I want a good idea of the range to plan for longer rides. 2nd Fill up 61 MPG 3rd Fill up 58 MPG 4th Fill up 54 MPG I have not had too much time on trails so its be mainly city and flat roads at 4300 ASL.
	1

04-25-2024, 12:38 PM	#8
Weresquatch Join Date: Jan 2024 Posts: 93	Good news is no problem going home so....deus ex machina? Anyway, my X was purchased to be 80/20 but with the bias being off-road. I only want to travel on tarmac to get to dirt. I appreciate the inputs on mileage. I'll just hit filling stations at 80 miles on the triometer and look at gas storage solutions for an extra gallon or so. Right now my X is pushing 55mph at 7k. I'd like that number to be more like 62-65mph at 7k. What rear sprocket reductions do y'all recommend? I'm thinking 42t? I want to maintain as much off-road torque as I can but still not tax the motor too much on hwy sprints to trailheads especially when loaded down with some gear. Thanks in advance. __________________ Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900
	0

04-26-2024, 01:03 PM	#9
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,220	As I recall, OEM sprockets are 13/49 = 0.2653 If you go to a 47T rear, new ratio is 13/47 = 0.2766 % inrease in gear ratio can be calculated 0.2766 - 0.2653 = 0.0113 0.0113/0.2766 * 100 ~ 4.1% increase. So if it was going 60 before, it will go 62.4 with the new sprocket at the same rpm. Each gear will be affected exactly the same, by ~4.1% faster at any given rpm. This is the way I calculate it. Please, anyone feel free to correct me if this is not mathematically correct. So choose your target and then see what sprockets are available to make it happen. JT sprocket numbers are in the first post: https://www.chinariders.net/showthread.php?t=32177 __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it Last edited by Thumper; 04-26-2024 at 01:43 PM.
	0

04-26-2024, 01:31 PM	#10
Weresquatch Join Date: Jan 2024 Posts: 93	When I broke out my gear inch calculator I found that going from 13/49 to 13/42 (a 7T drop) would yield about a 16.7% difference. In your example a 2t drop yielded about 4% so I think we're pretty close. Assuming 54mph at 7K going to a 42T rear should yield about 63mph which is about where I was hoping to be. I appreciate you chiming in with your maths. __________________ Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900 Last edited by Weresquatch; 04-26-2024 at 02:14 PM.
	2

04-26-2024, 01:49 PM	#12
Weresquatch Join Date: Jan 2024 Posts: 93	Hadn't checked honestly. I'm just sussing out opinions before I do it. I would think there's room for a 2T change up front. That would necessitate a new chain maybe. Just used a gear inch calculator instead of relying on my scribbling....Going from 49t in the rear to a 42t would yield 16.7% increase whereas running a 15/49 yields a 15.4% difference and probably needing 4 more chain links. __________________ Templar X 250 Vespa GTS 300 Vespa ET4 150 Triumph Legend TT 900
	0

04-26-2024, 01:53 PM	#13
Thumper Join Date: Feb 2021 Location: Kansas City Posts: 2,220	Not sure there is room for a 15T front sprocket, but that would be a big change anyway(13T to 15T). I think 13 to 14 would be about a 7.6% increase, or 60 becomes ~64.5mph at same rpm, right? __________________ -2022 5 speed Templar X Orange, OEM 51T rear sprocket, 14T front sprocket -NOS 2020 KTM 250SX (2-stroke motocross), less than 10 hours on it
	1