- Posts: 434
- Thank you received: 23
spitting sound on cold starts...
- Rockranch
- Topic Author
- Offline
- User
Less
More
10 May 2016 19:45 #725633
by Rockranch
(2)-1976 KZ900B-LTD's
1-all stock low mileage...
1 modified
1977 KZ1000 (awaiting resurrection!)
...and an old school Honda CB750 Chopper is next on my bucket list!
Oh...and a Pocket Rocket lol!!!
spitting sound on cold starts... was created by Rockranch
I gotta small bet with a friend about the cause of a spitting sound of a cold started carb (old airscrew Mikuni's) on his KZ1000. He starts his cold engine and one of the 4 carbs makes the spit sound until it's idling. I tell him one thing, he says I'm crazy. I said I'll prove it by responses, kinda like a survey lol. I asked him that plug color compared to the other 3 (all new plugs) and he says lighter than the others and a creamish color. Well I said it doesn't take a rocket scientist to figure out why that is lol but he won't budge. Maybe I shld just let him score a piston for a hard lesson learned. Thanks to all participants. .......................Mike
Vroom-vroom!
Vroom-vroom!
(2)-1976 KZ900B-LTD's
1-all stock low mileage...
1 modified
1977 KZ1000 (awaiting resurrection!)
...and an old school Honda CB750 Chopper is next on my bucket list!
Oh...and a Pocket Rocket lol!!!
Please Log in or Create an account to join the conversation.
- Kray-Z
- Offline
- User
- I need more power Scotty....
Less
More
- Posts: 583
- Thank you received: 107
16 Jul 2016 18:40 #735189
by Kray-Z
2-04 R1, 81 CSR1000, 81 LTD1000, 2-83 GPz1100, 3-79CBX, 81 CBX, 3-XS650, 84 Venture, +parts
Quote "speed costs money...how fast do you want to go?" (Which Z movie?)
Universal formula for how many motorcycles one should own = n + 1, where n is how many motorcycles you own right now....
Replied by Kray-Z on topic spitting sound on cold starts...
That cylinder is running LEAN!!!!!
Many possible causes, depends on which carbs, too - float level is too low, idle mixture is lean, fast idle (choke) circuit is lean / plugged, slow jet, etc...
Many possible causes, depends on which carbs, too - float level is too low, idle mixture is lean, fast idle (choke) circuit is lean / plugged, slow jet, etc...
2-04 R1, 81 CSR1000, 81 LTD1000, 2-83 GPz1100, 3-79CBX, 81 CBX, 3-XS650, 84 Venture, +parts
Quote "speed costs money...how fast do you want to go?" (Which Z movie?)
Universal formula for how many motorcycles one should own = n + 1, where n is how many motorcycles you own right now....
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 23010
- Thank you received: 2755
16 Jul 2016 18:57 #735190
by SWest
Replied by SWest on topic spitting sound on cold starts...
Leaky carb holders.
Steve
Steve
Please Log in or Create an account to join the conversation.
- Kray-Z
- Offline
- User
- I need more power Scotty....
Less
More
- Posts: 583
- Thank you received: 107
16 Jul 2016 19:03 #735191
by Kray-Z
Yep, that too...,although that usually causes other running issues as well - erratic / high idle speed, surging, "popping" out the exhaust...stuff like that.
2-04 R1, 81 CSR1000, 81 LTD1000, 2-83 GPz1100, 3-79CBX, 81 CBX, 3-XS650, 84 Venture, +parts
Quote "speed costs money...how fast do you want to go?" (Which Z movie?)
Universal formula for how many motorcycles one should own = n + 1, where n is how many motorcycles you own right now....
Replied by Kray-Z on topic spitting sound on cold starts...
swest wrote: Leaky carb holders.
Steve
Yep, that too...,although that usually causes other running issues as well - erratic / high idle speed, surging, "popping" out the exhaust...stuff like that.
2-04 R1, 81 CSR1000, 81 LTD1000, 2-83 GPz1100, 3-79CBX, 81 CBX, 3-XS650, 84 Venture, +parts
Quote "speed costs money...how fast do you want to go?" (Which Z movie?)
Universal formula for how many motorcycles one should own = n + 1, where n is how many motorcycles you own right now....
Please Log in or Create an account to join the conversation.
- SWest
- Offline
- Sustaining Member
- 10 22 2014
Less
More
- Posts: 23010
- Thank you received: 2755
16 Jul 2016 19:05 #735192
by SWest
Replied by SWest on topic spitting sound on cold starts...
I they have small cracks at the head, it can run well and spit like that.
Steve
Steve
Please Log in or Create an account to join the conversation.