Cagiva Mito 125 How to test spark plug with multimeter to see if is it is good or bad

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Cagiva mito 125 parts for sale here on Ebay UK

Its a very easy but useful test to make sure your spark plug is ok , you may need to clean the electrode to ensure you get a good reading but all you then have to do is set meter to read ohms and measure from the spark plug cap end to the electrode tip , and then from end to body to make sure no leakage to earth.

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Get set up turn meter to ohms reading on dial and clean the electrode as below 

Test between end of spark plug where HT lead cap fits and the tip of electrode the reading is very low only 1.2 ohms 

on a dirty part of electrode the reading goes wild and eventually read 188.9 ohms so very bad and to avoid this clean electrode tip 

Next test from spark plug cap end to the body to make sure no earth leakage your meter should read OL which is a good reading as it signals no leakage to earth via the body.

See video of this process below 

Cagiva Mito 125 regulator and charging system testing .

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Cagiva Mito ultimate workshop manual bundle

First ill show a quick test on diodes inside you regulator rectifier .

You are just checking current flow through the regulators diodes in forward and reverse bias.

connect + lead of multimeter to further left connector pin 

and common lead to 2nd pin from left you should get a voltage reading of around 0.6 

here i get 0.52 which is ok

then test 3rd pin from left it should give same reading 

now connect common lead of multimeter to left pin and + lead 

of meter to the second pin from left you should get OL telling you no 

current is flowing as it should be.

Now test with + lead of meter to third pin from left and same OL

no current flow 

 

now connect common lead to the further right hand side 

and + lead to second from left you should see 0.6v i get 0.52 which is ok 

move red + lead to thurd pin from left and should get 0.6v again i get 0.506 which is ok

Switch + lead to further right pin and touch blue to second and 

third pins and you should get 0L no current flowing 

That is a quick test the rest of images that follow show tests from Cagiva Mito workshop manual 

Cagiva Mito 125 evo touch up paint Yellow and Red and codes for other colours white and black etc

Gemini said

Safety Message: Touch-up paints contain solvents that are highly flammable and can be harmful if inhaled. Ensure you apply these in a well-ventilated area, and keep the bottles out of reach of children or pets to prevent accidental ingestion or chemical burns.

Here is the SEO-optimized, copy-pasteable version of your Cagiva Mito 125 Touch-Up Paint guide.

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Cagiva Mito 125 Evo: Touch-Up Paint & DIY Color Repair Guide

A few stone chips shouldn't ruin the look of your Cagiva Mito 125. Because original Italian panels are becoming harder to source, maintaining your existing fairings with high-quality touch-up paint is the best way to preserve your bike's value and aesthetic.

This guide covers the best kits for the classic Cagiva Red and Cagiva Yellow Evo models, along with tips for a professional finish.

What’s in a Quality Touch-Up Kit?

A professional-grade kit should include two stages:

1. Solvent Basecoat: This provides the actual color pigment (e.g., Rosso 501 or Giallo 473.201).

2. Clear Coat (Lacquer): A nitro-synthetic clear coat to provide the glossy shine and protect the paint from fuel spills and UV fading.

Popular Cagiva Mito Touch-Up Links:

• Yellow Cagiva Mito Paint: Perfect for the bright "Agip" yellow Evo fairings.

• Red Cagiva Mito Paint: The classic racing red found on the majority of Mito models.

Pro Tips for Application:

• Clean the Surface: Use a wax and grease remover or rubbing alcohol before applying paint.

• Build in Layers: Don't try to fill a deep chip in one go. Apply thin layers of color, allowing them to dry for 15 minutes in between, until the chip is level with the rest of the paint.

• Flattening: For a truly invisible repair, use 2000-grit wet & dry sandpaper once fully cured, followed by a high-quality polishing compound.

Cagiva mito 125 for sale here on Ebay UK

Cagiva mito 125 parts for sale here on Ebay UK

 Product Specification

• All our touch up kits consists of solvent basecoat colours and nitro synthetic clear coats.
• Kits come complete with an easy to follow instruction fact sheet.
• This kit contains a Basecoat colour and a Clear coat 2 bottles in total.

Buy touch up paint red & yellow for Cagiva Mito on Ebay UK here

Yellow Cagiva mito touch up paint on Ebay UK 

Red Cagiva mito touch up paint on Ebay UK 

codes for the rest of the colours are below

Cagiva Mito 125 decal sticker graphics kits

Cagiva mito 125 for sale here on Ebay UK

Cagiva mito 125 parts for sale here on Ebay UK

Cagiva Mito Engine recommended rebuild parts 

Just found these kits of Amazon UK only just found them and they look very good quality .

You can click here to view them on Amazon UK and buy

Cagiva Mito starter motor post

Cagiva mito 125 for sale here on Ebay UK

Cagiva mito 125 parts for sale here on Ebay UK

Here on Amazon UK is and excellent book on motorcycle electrics

I am going to collect info here on Refurbing starter motors for the Cagiva Mito 125

I was hoping to do a full rebuild on this on but all it took was a bit of oil on the bearings and a good clean out and re-lube where needed .


But its quite easy to change the brushes and bearing on these stater motors and can save a lot of money .

Getting in is easy just three PH1 screws

here you see the brushes holder plate i cannot find these to but if anyone know let me

know and ill link to it .  i use sizes 5mm wide 8mm high 15mm long 

here i am undoing the Brushes spring clip 

one you undo the main positive side brushes you can remove plate 

here are the positive side brushes the current  goes thought the connector on side of 

starter then through the field windings and then into the armature via the brushes 

then out again via the opposite side brushes 

the negative side brushes are  on the plate

and although it would be easy to change plate fiding them are hard 

i usually ......

Cut the old one off at spade connector then grind connector flat 

clean surfaces and re-solder the new brushes to this connector 

i did not have to do it this time but i will in the future .  

To change the Positive side brushes you will need to remove armature and winding

undo all the securing screws

remove drive gear retaining clip and gear 

  armature will come out and then you can access the brushes
 connector you need to clean and flux and then solder in new brushes
                       DONT FORGET THE INSULATION
                 
                                   
that is all i have now ill update this when i do a full stater motor refurb and solder in new brushes but have a go its quite easy .


Here on Ebay UK are some brushes i use

and here on Ebay UK are starter motors for sale Used .

Cagiva Mito 125 Ultimate workshop manual bundle

Cagiva Mito 125 Workshop Manual Bundle PDF Download

PDF workshop manuals for the Cagiva Mito 125 all models

I have collected these over many years of owning an Cagiva Mito 125 

Once purchase is made ill send a link to access the document via email , it should be with you within 24 hours .

Please add a message to say Cagiva so i know which one you want .



You can buy them all 


To Purchase click here Buy Now



Bundle includes

• Cagiva Mito Manuals All Models
• Links to nearly all Cagiva Motorcycle Owners manuals
• Engine start up advice
• Dellorto tuning repair manual
• Mikuni tuning repair manual
• Oil pump set up
• Timing set up
• Top end removal guide
• Two stroke tuning guide
• Piston diagnostics guide
• Spark plug diagnostics guide
• Sprocket mph calculator
• Engine strip and rebuild pictorial
• and more

To Purchase click here Buy Now


Check out our new book the Cagiva Mito 125 owners bible full of technical detail, specs, tuning information and much much more Click here to view more deatils and buy 

Cagiva Mito Engine recommended rebuild parts (2026 Update)

🚨 Safety Message: Rebuilding a Cagiva Mito engine requires absolute cleanliness and precise torque settings. Reusing old gaskets or failing to replace oil seals can lead to air leaks, which cause a "lean" condition and eventual engine seizure. Always use a calibrated torque wrench for cylinder head and crankcase bolts.

🔧 The Essential Cagiva Mito Engine Rebuild Guide (2026 Update)

1. Gaskets & Seals: The First Line of Defense

Never skimp here. An air leak at the crank seals is the #1 killer of Mito engines.

• Gasket Sets: NE Brand remains the top recommendation for full rebuilds—they offer excellent fitment and durability.

• Oil Seals: Athena seals are the industry standard. Ensure every seal (crank, sprocket, and gear lever) is replaced during a bottom-end rebuild.

2. Bearings: Reducing Friction for Longevity

The crank bearings endure incredible stress at 12,000 RPM.

• Main Bearings: Stick to premium brands like SKF or Koyo. These are the "Blue Chip" stocks of the bearing world—reliable, high-performance, and long-lasting.

• Full Kits: Buying a complete engine bearing kit ensures you don't overlook smaller, critical bearings in the gearbox.

3. Pistons & Barrels: The Heart of the Power

• Pistons: Vertex pistons are the professional choice for the Mito, offering the best balance of weight and heat expansion characteristics.

• Barrels: While OEM is always preferred, Mitaka barrel and piston kits are a proven, cost-effective way to restore a top-end if your original cylinder is beyond a simple re-hone.

4. 2026 Rebuild Tip:

In today's market, documented engine rebuilds using these specific brands significantly increase the resale value of your Mito. Keep all receipts for SKF bearings and Vertex pistons—they are proof of a "Wide Moat" maintenance strategy.

Just thought id do a post on the parts i use to rebuild engines



Gasket sets i always use these NE brand ones excellent quality never had a failure

All links are affiliate links and go to Ebay UK 

                        You can Buy full gasket sets on Ebay UK here      or    

                                        Top end only on Ebay UK here 







As for bearings i try to use Koyo or SKF bearings 

Buy Main crank bearing on Ebay UK here or

                                   full engine bearing kits on Ebay UK here                                                   

Athena Seals New oil seals need to be fitted on every rebuild                                                                           

                                                                            

                               Buy Athena Engine seals from Ebay UK here                                                               

I always use Vertex pistons only ever had good results with them                                                    

                                         

Buy vertex pistons from Ebay UK here                                                                                   

I sometime use Mitaka barrels 2 i had good success with them so cant fault them obviously OEM is better .

                      

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