Just bought myself a compression testing kit.
Checked the compression on my TS1 - 225 just to see how the kit works and measured 100psi - kicked engine over three or four times to get to the 100 and that was the max I could register.
Does 100psi sound about right?
Cheers
Scott
Compression on TS1?
-
alanscottj
- registered user
- Posts: 960
- Joined: Fri May 23, 2014 6:54 pm
- Main scooter: Lambretta GP SS250 Casa
- Contact:
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
-
alanscottj
- registered user
- Posts: 960
- Joined: Fri May 23, 2014 6:54 pm
- Main scooter: Lambretta GP SS250 Casa
- Contact:
Not many TS1's around these parts - maybe some of the chaps on here can share their readingsmick1 wrote:Looks a tad low. Can you check a couple of mates scooters and get a comparison ?
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
-
Scooterdude
- registered user
- Posts: 796
- Joined: Sat May 28, 2016 4:51 pm
- Main scooter: Lambretta LI 125 S3
- Location: Skaville
- Contact:
When you did the test did you hold the throttle wide open? If not do it again and hold it open!
-
alanscottj
- registered user
- Posts: 960
- Joined: Fri May 23, 2014 6:54 pm
- Main scooter: Lambretta GP SS250 Casa
- Contact:
I didn't no, I will do it again tomorrowScooterdude wrote:When you did the test did you hold the throttle wide open? If not do it again and hold it open!
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
-
garry inglis
- registered user
- Posts: 1298
- Joined: Tue Jul 21, 2015 8:04 pm
- Main scooter: ts1 230 and rb200
- Location: darlington
- Contact:
Have you done another test alanscottj would like to no the outcome
Sent from my iPhone using Tapatalk
Sent from my iPhone using Tapatalk
-
alanscottj
- registered user
- Posts: 960
- Joined: Fri May 23, 2014 6:54 pm
- Main scooter: Lambretta GP SS250 Casa
- Contact:
garry inglis wrote:Have you done another test alanscottj would like to no the outcome
Yup, just done another, throttle open, exactly the same, bang on 100psi - so still none the wiser. Is it too low?
Sent from my iPhone using Tapatalk
Lambretta Series 2 Rat - RB260, SuperTourer, Cyclone 5 gearbox 😎👍
I could be wrong but sure ive seen figures posted of 100 - 120psi
-
coaster
- registered user
- Posts: 3125
- Joined: Wed Jan 07, 2009 12:35 pm
- Location: London and Norfolk
- Contact:
If the gauge was a cheep one off ebay then I wouldn't be too sure of its accuracy tbh. What does the pedal pressure feel like@ should be quite a firm kick needed. What does it run like? good starter? clean plug? 100PSI is low, if it's got some miles on it maybe some new rings are required.
I checked the compression on mine after it seized up last year and I think that was about 100PSI and I could feel the compression had gone when I kicked it over. A strip down revealed stuck rings and damage to the lining.
I checked the compression on mine after it seized up last year and I think that was about 100PSI and I could feel the compression had gone when I kicked it over. A strip down revealed stuck rings and damage to the lining.
-
Scooterdude
- registered user
- Posts: 796
- Joined: Sat May 28, 2016 4:51 pm
- Main scooter: Lambretta LI 125 S3
- Location: Skaville
- Contact:
I know it's a completely different animal but my 175 conversion was 145psi when I first built it, after I seized it and honed the bore it was down to 125psi. When I seized it again it was down to 75psi which wasn't enough compression to start it.