Go Back   Motorcycle Forum > Motorcycle.Com General Discussion > Motorcycle Mods and Maintenance

Reply
 
Thread Tools
Old 07-30-2010, 11:00 PM   #1
Sarawr
Registered Member
 
Join Date: Jul 2010
Posts: 3
Exclamation '86 honda interceptor vfr 750

How do I adjust the idle, it won't stay running without the choke on. Also the wiring for the lights and turn signals is messed up, where could I find a diagram on the internet for it or does anyone know how to fix
Sarawr is offline   Reply With Quote

Sponsored Links Remove Advertisements
Motorcycle Forum
Advertisement
Old 07-31-2010, 06:40 AM   #2
MOKE1K
Registered Member
 
MOKE1K's Avatar
 
Join Date: Jul 2008
Location: Kalapana, Big Island
Posts: 3,993
Default

How long has it sat, if at all?
__________________
"YOU CAN'T BOLT ON SKILL"
MOKE1K is offline   Reply With Quote
Old 07-31-2010, 06:49 AM   #3
MOKE1K
Registered Member
 
MOKE1K's Avatar
 
Join Date: Jul 2008
Location: Kalapana, Big Island
Posts: 3,993
Default

When a bike only runs on the choke it's a good indication the idle circuit is clogged. When's the last time you rode it?
__________________
"YOU CAN'T BOLT ON SKILL"
MOKE1K is offline   Reply With Quote
Old 07-31-2010, 06:50 AM   #4
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,491
Default

The the low-speed or "Idle Jets" in the carbs are clogged with gunk - it will require the carbs to be removed, disassembled, and a soft copper wire poked-through the orifices and some spray-carb cleaner shot-through afterward.

Avoid getting carb-cleaner on rubber bits, it causes them to soften, stretch, and swell - and it goes without saying to wear eye-protection, 'cuz that cleaner CAN and WILL blind your arse........
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Old 08-03-2010, 12:46 AM   #5
Sarawr
Registered Member
 
Join Date: Jul 2010
Posts: 3
Default

It has been sitting for about 8 months. I went to a mechanic out here he said the same thing about the gunk and the carbs being cleaned. The mechanic told me to put octane booster and to run all the fuel out. It is suppose to help clean the carbs , and if it doesn't help it any to get the carbs done. After two days it has started to run a little bit better.
Sarawr is offline   Reply With Quote
Old 08-03-2010, 05:59 AM   #6
MOKE1K
Registered Member
 
MOKE1K's Avatar
 
Join Date: Jul 2008
Location: Kalapana, Big Island
Posts: 3,993
Default

There's the information we were looking for, see wasn't that easy. Good luck I'd clean.
__________________
"YOU CAN'T BOLT ON SKILL"
MOKE1K is offline   Reply With Quote
Old 08-03-2010, 08:20 AM   #7
The_AirHawk
Founding Member
 
The_AirHawk's Avatar
 
Join Date: Jun 2007
Location: Leanin' Tower O' P-P-P-P-POWAAAAAAAAA!!!!
Posts: 11,491
Default

"Octane Booster" won't help jack, Jack. And even carb-cleaner run through the tank (such as Berryman's B-12, or Seafoam) only has about a 10-20% chance of working.

The problem is, the idle-jets are so tiny that they clog quite-easily.

When you're starting the bike with the "Choke" or enricher, it only draws part of the fuel it needs through the idle-jets. If they're clogged, the engine can get ALL the fuel it needs to start and run through the choke circuit, and none will flow through the idle-jets - but when you take it "off choke", the bike dies because because it's trying to get the fuel it needs through the idle-circuit. Jets clogged = No Fuel.

In Theory, it's not that hard to remove the carbs and clean the jets. In practice, that V-4 is gonna be a Cast-Iron Bytch.

If you don't already own a Manual, I suggest you buy one. Honda Factory Service-Manual would be Best, but Clymer makes some excellent manuals, especially for the money.
__________________
Parfois, on fait pas semblant
Sometimes, it's not pretend
Oderint Dum Metuant
Let them hate so long as they fear
политики предпочитают безоружных крестьян
Politicians Prefer Unarmed Peasants
Nothing to see here, Citizen. Move along now...
The_AirHawk is offline   Reply With Quote
Old 08-03-2010, 11:08 AM   #8
MOKE1K
Registered Member
 
MOKE1K's Avatar
 
Join Date: Jul 2008
Location: Kalapana, Big Island
Posts: 3,993
Default

Also if your unsure about doing it take pics to guide you from start to finish.
__________________
"YOU CAN'T BOLT ON SKILL"
MOKE1K is offline   Reply With Quote
Old 08-07-2010, 06:23 AM   #9
armandjones82
Registered Member
 
Join Date: Jun 2010
Posts: 4
Default

Not sure on the VFR, but in most cases you are better off buying new pilots and mains. They are usually cheap and it is very hard to get all the holes cleaned out in the pilots. I think if you pull the pilot jets you will find them plugged.
__________________
Yamaha Raptor 250r Site | Yamaha Raptor 250r Videos
armandjones82 is offline   Reply With Quote
Old 08-07-2010, 07:01 AM   #10
MOKE1K
Registered Member
 
MOKE1K's Avatar
 
Join Date: Jul 2008
Location: Kalapana, Big Island
Posts: 3,993
Cool

Why buy new ones when you can just clean them? there are many different solutions you can let them soak in that will take a lot less time then shipping new ones in. If you can even find them.
__________________
"YOU CAN'T BOLT ON SKILL"
MOKE1K is offline   Reply With Quote
Reply


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off